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	<title>injection &#8211; WordPress Security Blog</title>
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	<link>https://blog.website-malware-removal.com</link>
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		<title>Arbitrary file uploads and SQL injection are the most important vulnerabilities to be aware of in WordPress.</title>
		<link>https://blog.website-malware-removal.com/10533</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 13 Jun 2025 01:56:15 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[injection]]></category>
		<category><![CDATA[plugin]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=10533</guid>

					<description><![CDATA[The most important WordPress vulnerabilities to be aware of are Arbitrary file uploads and SQL injection. What vulnerabilities in WordPress are being targeted? When hacking WordPress, hackers use a haphazard method of hitting the easiest and most likely vulnerabilities it has on the site. Because WordPress is the world&#8217;s most popular CMS, with over 100 million sites, there are tools available to hack into multiple WordPress sites one after another to try to find the most prominent vulnerabilities. The two most easily exploitable vulnerabilities that hackers can exploit are arbitrary file uploads and SQL injections. What are Arbitrary file uploads and SQL injection? Arbitrary file uploads are vulnerabilities (link to vulnerability database) that allow arbitrary file uploads. Hackers often use this vulnerability as a starting point to install backdoors that allow them to alter files on the server, change WordPress settings to make it impossible to log in to the administration panel, or embed malicious code in the site content. SQL injection is a vulnerability (link to vulnerability database) that may allow the database to be rewritten. This one is less targeted than Arbitrary file uploads, but if an easily exploitable vulnerability is discovered, hackers may launch an intensive attack. There is an epidemic of hacker attacks. When Arbitrary file uploads or SQL injections are discovered in plug-ins with high penetration, an epidemic occurs in which the vulnerability is widely used. As mentioned above, hackers use tools to attack these vulnerabilities by obtaining a huge number of WordPress listings from search engines, etc. It does not matter how small your site is, as long as it is listed on a search engine, sooner or later it will be exposed to hackers&#8217; vulnerability attacks. It does not matter how small your site is, as long as it is listed on a search engine, it will sooner or later be exposed to hacker vulnerability attacks. In our experience, if a vulnerability is left unchecked, it is likely to be caught in a hacker&#8217;s net within six months to a year. It is important to stay on top of vulnerabilities! If you run WordPress, we recommend that all sites on your server be tested for vulnerabilities every few months. Click here to view our vulnerability database. Click here for a plugin that can test for vulnerabilities.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10533</post-id>	</item>
		<item>
		<title>WordPress content injection case study, online casino site operating on its own server</title>
		<link>https://blog.website-malware-removal.com/10404</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 26 Feb 2025 01:23:16 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[clean]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=10404</guid>

					<description><![CDATA[Here is a case study of a WordPress content injection that caused an online casino site to operate on its own server. What is content injection? Content injection is the embedding of content on the server that is not intended by the operator. In the case of our malware removal service, over 7,000 online casino introduction pages were hosted in the folder &#8220;online-casino&#8221; on the initial domain of the X server. online-casino folder of the initial X server domain, more than 7,000 online casino introduction pages were hosted without permission. Why and how do hackers perform content injection? The embedding of malicious content from the online casino in this case may be to hook it into the search engines and improve the SEO of the site, which is the hacker&#8217;s intention, or to embed this content in another malicious site or in spam emails to hide who is creating and hosting the content. or to embed this content in another rogue site or in a spam email to hide who is creating and hosting the content. In our customer&#8217;s case, content injection was performed on the initial domain of the X server, but there were no other files in the initial domain folder of the X server. This means that there is another malware body (backdoor) embedded in the folders of other sites on the server that can write to the server-wide folder. Malware (backdoors) in all site folders on the server need to be removed and vulnerabilities addressed. Many of today&#8217;s malware reads the folder structure of all sites hosted on the server to spread infection, perform content injection, etc. For this reason, if any site on the server shows symptoms of malware, we recommend that you remove the malware from all WordPress sites hosted on the server and take measures to prevent vulnerabilities. Free WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal]. What happens if I leave my site infected with malware? If left unchecked, malware infection can result in the aforementioned content injection contaminating search results, preventing users from reaching your site, a large amount of malware from low-quality programs being embedded in your site, rendering your site unviewable, or your domain becoming a springboard for spam emails so that your It can also be a stepping stone for spammers, causing your domain&#8217;s email address to be blocked by spam filters, or even worse, users can be misdirected to another site and suffer actual damage. We recommend that all sites on the server be cleaned of malware and secured as soon as possible.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10404</post-id>	</item>
		<item>
		<title>What is an injection attack in which malicious content is inserted into a WordPress page?</title>
		<link>https://blog.website-malware-removal.com/10400</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Thu, 20 Feb 2025 01:34:06 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[index.php]]></category>
		<category><![CDATA[injection]]></category>
		<category><![CDATA[javascript]]></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=10400</guid>

					<description><![CDATA[This section describes injection attacks in which malicious content is inserted into WordPress pages. WordPress Content Injection Attacks The most common type of WordPress hacking is an injection attack, in which a site&#8217;s content or code is partially rewritten to insert malicious content, inducing users who visit the site to take actions not intended by the site&#8217;s creator. Examples of malware injected by hackers to induce unintended user behavior include the following Users are redirected to another malicious site instead of the page they were trying to view. Attempts to induce users to download malicious software Phishing attacks in which an unauthorized page is generated, registered with search engines, and users accidentally access the unauthorized page. Three types of injection attacks There are three types of injection attacks. Code Injection This is an injection attack that embeds (or controls the output of) a JAVASCRIPT or PHP executable program into an existing page. Page Injection This is an attack in which a malicious page itself is placed on the server to trap search engines and force users to access the page. Content Injection Content Injection is the insertion of illegal character strings or links into the content of a page (body, header, footer) to misdirect users. In these cases, content is often plugged in to give an SEO advantage. How do hackers inject malicious code or content into a site? In order for a hacker to perform an injection attack on a site, it is assumed that the site has already been successfully hacked and that the hacker has access to the database or files on the server that can be rewritten. Around 80% of all successful hacks are caused by site vulnerabilities or user password vulnerabilities. Hackers find vulnerabilities in the site, break through them, and then inject malware into files such as the following wp-config.php index.php wp-blog-header.php Theme functions.php header.php footer.php single.php Other plugins and theme settings stored in the database However, nowadays, the injection is not limited to the above files, but is often performed deep within the hierarchy in a variety of files that are executed each time a WordPress page is displayed. Finding and Removing Injected Files There are thousands of WordPress files, and it is very difficult to manually open each and every file to find injections. A plugin that exhaustively scans WordPress site files with nearly 20,000 injection (malware) detection patterns may be able to find and remove injections. Free WordPress:Malware Scan &#038; Security Plug-in [Malware and Virus Detection and Removal]. We hope you will use it!]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10400</post-id>	</item>
		<item>
		<title>The 3 most targeted and most dangerous vulnerabilities in WordPress</title>
		<link>https://blog.website-malware-removal.com/10312</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 27 Nov 2024 01:13:04 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=10312</guid>

					<description><![CDATA[The following are the three vulnerabilities that are most likely to be exploited if discovered on a WordPress site. If your site contains any plug-ins or other components that are vulnerable to these vulnerabilities, we recommend that you take action as soon as possible. 1 Arbitrary file uploads vulnerability This vulnerability allows a vulnerable program to generate (upload) a file on the server by sending data to it. In a sense, this vulnerability is the most favorite vulnerability of hackers because it is as dangerous or more dangerous than a WordPress administrator privilege compromise, since it allows hackers to perform any operation they want on the server. Hackers can upload any executable file on the server through this vulnerability. (In some cases, the file extensions that can be uploaded are limited. In this case, the danger level is reduced.) Hackers can exploit this vulnerability to attack WordPress sites one after another using hacking tools that send malware files. Plugins with Arbitrary file uploads vulnerabilities can be investigated here. 2 Remote code execution (RCE) This vulnerability allows the code to be executed on the server by sending specific data to a file with this vulnerability. (The process that can be executed may be limited.) Through this vulnerability, a hacker may install malware on the server through several steps (e.g., by taking away administrative privileges). The malware installed by the hacker may intentionally incorporate this vulnerability*, and another hacker will often seek out and reuse malware files that intentionally incorporate the RCE installed by the first hacker. *Malware that serves as an entry point for such hacks is called a backdoor. Plug-ins, etc. that are vulnerable to remote code execution (RCE, Remote code execution) can be investigated here 3 SQL injection WordPress sites are built largely from a set of program files and a database that stores text data and settings for content. SQL injection is a vulnerability that allows the database to be modified or data to be retrieved illegally. Hackers can use this vulnerability to create unauthorized users in the database, write unauthorized settings, or embed redirection scripts in the content that redirect users to other sites without their permission. Although SQL injection is less commonly used in WordPress vulnerability attacks than other vulnerabilities, once this vulnerability is found in a highly popular plugin, it is often used intensively. Plug-ins that are vulnerable to SQL injection can be investigated here. You can also use plug-ins that allow you to easily inspect your WordPress site for malware and vulnerabilities from the inside. Free WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal].]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10312</post-id>	</item>
		<item>
		<title>What are the essential features of the WordPress security plugin?</title>
		<link>https://blog.website-malware-removal.com/10277</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 25 Oct 2024 01:47:12 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[htaccess]]></category>
		<category><![CDATA[injection]]></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=10277</guid>

					<description><![CDATA[This section describes the features that should be implemented in the WordPress security plugin. What security measures are necessary for a WordPress site, based on WordPress attack methods? The causes of WordPress hacking can be broadly categorized into the following five types. 1. Hacker logs in as administrator by breaking the administrator&#8217;s password by brute force 2. Hackers install or modify arbitrary files in the server by taking advantage of vulnerabilities in plug-ins, etc. 3. Hackers rewrite databases by exploiting vulnerabilities in plug-ins, etc. 4. Hackers take advantage of vulnerabilities in other websites on the same server 5. Vulnerability in the server OS or software itself is exploited It is difficult to prevent the fifth type of vulnerability with WordPress hacking countermeasures. Also, since most websites are located on shared servers without root (OS-level administrator) privileges, it is the responsibility of the server administrator to improve the security of the server. For this reason, a WordPress site should have a security plugin that makes steps 1, 2, and 3 as difficult as possible. Let&#8217;s take a look at what features are effective for each of these. Countermeasure 1: Hacker logs in as administrator by breaking the administrator&#8217;s password with brute force. To prevent this attack, the following features should be implemented in the security plugin. ・Capture (quiz that only humans can understand) can be given to the login screen. Prevent XMLRPC and REST API attacks Change the URL of the login screen Prevent WordPress user IDs from being compromised Temporarily disable login after several failed login attempts (login lockdown) Also, the most important thing is to make sure that the login password is complex. If the login password is sufficiently complex, the above functions will play an auxiliary role. Countermeasure 2: Hackers take advantage of vulnerabilities in plug-ins and other vulnerabilities to install or modify arbitrary files in the server. Exploiting plugin vulnerabilities is the most common attack method in WordPress. To prevent vulnerability attacks, the following features should be installed in security plug-ins. ・Prevent vulnerable plugins and WordPress versions from being compromised Vulnerability scanning function Prevent vulnerability attacks at the time of attack A common way to prevent vulnerability attacks at the time of attack is to register multiple patterns in the HTACCESS file according to known vulnerability attacks. Several security plug-ins have a &#8220;prevent version compromise&#8221; function, but in fact, there are very few security plug-ins that have a &#8220;vulnerability inspection function&#8221; and a &#8220;prevent vulnerability attacks in advance&#8221; function. WP Doctor&#8217;s [Free] WordPress: Malware Scan &#038; Security Plug-in [Malware and Virus Detection and Removal] includes both functions, so please use it if you like. Another effective way to prevent vulnerability attacks is to frequently update your site&#8217;s WordPress software, themes, and plug-ins to keep them up-to-date. (This is because the program&#8217;s creator often prevents vulnerabilities with the latest version of the program.) Countermeasure 3: Hackers rewrite databases to take advantage of vulnerabilities in plug-ins, etc. This attack is called SQL injection, which uses a vulnerability in a WordPress plugin or other software to send malicious database processing code to [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10277</post-id>	</item>
		<item>
		<title>Glossary of common vulnerability attacks in WordPress</title>
		<link>https://blog.website-malware-removal.com/10263</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Thu, 17 Oct 2024 01:31:20 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=10263</guid>

					<description><![CDATA[This is a brief glossary of common vulnerability attacks on WordPress. Cross-Site Scripting Cross-Site Scripting (XSS) is a vulnerability that allows a hacker to paste arbitrary malicious code on an arbitrary website and execute it when the victim loads the website. The malicious code can be executed by the victim in several ways. The most common is to add that malicious code to the end of the URL of a link and let the vulnerability execute the code on the page of the website where the victim clicks on the link and flies to. Privilege escalation Privilege escalation attacks are cyber attacks aimed at gaining unauthorized privileged access to a system. Attackers take advantage of vulnerabilities in operating systems and web applications to gain and exploit privileges on the system that they do not have. In the case of WordPress, this means using a vulnerability to elevate a subscriber&#8217;s privileges to a higher level of privileges, such as administrator privileges, and then defacing the site. Path Traversal,Directory Traversal Path traversal is a vulnerability that allows an attacker to illegally retrieve and read arbitrary files on the server. The ability for an attacker to read the files means the following Obtaining and reading application code and data Retrieval and viewing of WordPress configuration files and database connection credentials Retrieving and viewing sensitive system files. In some cases, an attacker will be able to use the above illegally obtained data to ultimately take over the site completely. SQL injection SQL injection is one of the most common web hacking techniques; a SQL injection attack is an attack in which the input of a web page causes various operations to be performed improperly on a database via this vulnerable program. Hacking attacks that are possible with SQL injection attacks include the following Rewriting user passwords. Adding unauthorized users. Rewriting content. Extract information from the database Bypass login authentication Rewrite settings Cross-Site Request Forgery A Cross-Site Request Forgery (CSRF) attack is an attack that takes advantage of a user&#8217;s authentication state (login state) on a site to trick the user into performing actions such as transferring money from an account, changing an email address or password, or other undesirable actions. Attack. (The site interprets this as the legitimate action of the logged-in user, but it is actually a form of malicious action taken by the hacker by executing a malicious program that the user is unaware of.) A successful CSRF attack against an administrative account can compromise an entire server and completely take over web applications, APIs, and other services. File inclusion File inclusion vulnerabilities allow an attacker to read and sometimes execute files on the victim&#8217;s server, and some vulnerabilities allow an attacker to execute malicious code that resides on the attacker&#8217;s machine. PHP Object injection This vulnerability occurs when user-supplied input is not properly sanitized (converted to non-executable data) before the data is passed to the unserialize() function in PHP (the WordPress programming language). An attacker can pass an ad hoc, malformed data string to the vulnerable unserialize(), resulting in arbitrary PHP malformed code [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10263</post-id>	</item>
		<item>
		<title>Sitemap Injection, which registers incorrect pages in Google&#8217;s search results without permission, and how to deal with it.</title>
		<link>https://blog.website-malware-removal.com/10054</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 22 Apr 2024 01:19:11 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=10054</guid>

					<description><![CDATA[Learn about sitemap injection, which can register incorrect pages from your WordPress site in Google&#8217;s search results without your permission, and how to deal with it. Damage caused by sitemap injection A sitemap is a mechanism for letting search engines know what pages are on your site. The location of the sitemap can be indicated in a file called robots.txt User-agent: *Sitemap: http://yoursiteurl/sitemap.xml If a hacker breaks into your site and rewrites this sitemap and sets the search engines to read the incorrect sitemap by writing settings in the robots.txt file as shown above, the search engine will register the incorrect page in the search results. This may cause your site&#8217;s search results to be contaminated, which may result in a drop in the ranking of the original page, a drastic decrease in the number of hits because users cannot reach the page they want to reach, or damage to your site if users who access the malicious page download a virus or have their personal information stolen. Users accessing an unauthorized page may download a virus or have their personal information stolen. Malware that illegally creates sitemaps and registers them with search engines Sitemap-creating malware can exist as a stand-alone malicious program in a server, or it can be a parasite on legitimate files. The code for this malware is 1.Create a list of malformed sitemap URLs 2.Create a malicious sitemap with that list 3.Create a configuration to make search engines such as Google read it, or to read it. In many cases, the program is a three-step activity. If your site&#8217;s search results contain many malicious pages, you need to find and remove this script that has been embedded in your server. The easiest way to do this is to use a malware scanning plug-in to perform a comprehensive scan and remove it. Free WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal]. WordPress malware changes its code daily to evade these inspections. If the above plug-ins do not remove the malware, we recommend that you consult a specialist. Search results will not be restored immediately after removal of sitemap injection malware. Search results will not be restored immediately after removal of the malicious script (malware) that is responsible for the sitemap tampering and the tampering. This is because search engines will not remove the malicious pages from the search results until they re-read your site&#8217;s sitemap and crawl the server to confirm that the malicious pages are not on the server. In our experience, it can take up to a month or so for the contamination of the search results to be all but eliminated. It is also important to plug vulnerabilities on your site after malware removal! If a malicious sitemap was hosted on the server, it means that the site has a vulnerability that allowed hackers to enter. If this vulnerability is not plugged, the infection will be repeated. If you are infected with malware, be sure to take measures to prevent vulnerabilities (security measures) in addition to removing the malware. Reference Five free WordPress [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">10054</post-id>	</item>
		<item>
		<title>Can WordPress malware infect database data?</title>
		<link>https://blog.website-malware-removal.com/9982</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 14 Feb 2024 01:13:35 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></category>
		<category><![CDATA[javascript]]></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=9982</guid>

					<description><![CDATA[We will explain how an infection (tampering) with the WordPress database can cause the files on the site (server) to be tampered with. Types of WordPress Malware Infection WordPress consists of three major types of data: a group of program files, uploaded data such as images, and a database where content text and various WordPress settings are recorded. Of these, the program files are the most frequently tampered with, and in our experience, more than 90% of the time, the program files are tampered with or incorrect files are added. Cases of unauthorized data being written to the database are rare among WordPress hacking victims. What kind of malware infects WordPress databases? Database tampering is done through SQL injection attacks, backdoors, and brute force attacks that take advantage of plugin vulnerabilities. Through these attacks, the WordPress database may be tampered with and unauthorized data may be written to it. There are three main types of database tampering (1) Content tampering WordPress content is embedded with Javascript code that creates unauthorized redirects (users who visit the site are automatically redirected to other sites) or advertisements. (2) Tampering with configuration data Some configuration data of plug-ins or themes are tampered with, and the configuration data is output to the homepage, causing unauthorized redirects, unauthorized search engine registration, or other unintended actions to the site. (iii) Addition of unauthorized users WordPress users have IDs and passwords recorded in the database. This user can be created by a hacker by tampering with the database, allowing the hacker to log in as an administrator at will. Does database tampering cause tampering with WordPress files? Since only data can be recorded in the database and not executed as a program on the server (data in the database can only be retrieved), database tampering can directly cause tampering with files on the server, installation of backdoors or other server file tampering or folder structure on the server, such as by tampering with files on the server or installing backdoors. However, if an unauthorized administrator user is created as described in (3) above, a hacker can log in to WordPress with administrator privileges, which means that he/she can alter any files, install backdoors, or do anything else. Malware such as WordPress database tampering and file tampering can be scanned and removed with our plug-ins. Many of the features are free of charge, so please feel free to use them. Free] WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal]. We also recommend that you regularly check your WordPress site for unauthorized users.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">9982</post-id>	</item>
		<item>
		<title>Change WordPress database prefix to prevent SQL injection</title>
		<link>https://blog.website-malware-removal.com/8718</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Tue, 08 Aug 2023 12:00:41 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[error]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=8718</guid>

					<description><![CDATA[You can reduce the chances of a successful SQL injection by changing the prefix of your WordPress database. We will explain how to do this. What is a WordPress database prefix? A prefix is the prefix of the table that stores the data in the database, and when you install wordpress, the default value is wp_. Most WordPress sites use this prefix wp_. By changing this prefix, you can have multiple WordPress sites in one database and improve security. What is SQL Injection? SQL injection is a vulnerability in plug-ins and themes. If you continue to use a plug-in or theme with this vulnerability, an external party will send code to rewrite the above database and rewrite the database. If the database is rewritten, the contents of the posts can be edited illegally or an unauthorized user can be created. In this case, the hacker will specify the database to be rewritten using the prefix wp_, which is used by many WordPress, so if the prefix is different, the chance of a successful attack is reduced. Since the number of SQL injection vulnerabilities is small compared to the total number of vulnerabilities, it is not mandatory to change the prefix, but it is recommended for sites that are very security-conscious. Changing the Database Prefix If you change the prefix by directly modifying the database, the privileges of the WordPress user are also saved according to the prefix, so you may not be able to log in or use the functions of the administration screen. Also, since the prefix is set in wp-config.php, you will get a database connection error if you do not change this as well. You can change the prefix using a plugin that automatically handles prefix-related processes such as these. On the Add Plug-in screen, enter Brozzme DB Prefix &#038; Tools Addons to install and activate the plugin. Then go to Tools > DB prefix and specify the new prefix and press the Change button. After the change, you may delete this plugin. Please try again. Free WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal].]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">8718</post-id>	</item>
		<item>
		<title>How to find JAVASCRIPT Injection in WordPress</title>
		<link>https://blog.website-malware-removal.com/8566</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Tue, 27 Jun 2023 12:00:40 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[index.php]]></category>
		<category><![CDATA[injection]]></category>
		<category><![CDATA[javascript]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=8566</guid>

					<description><![CDATA[If your WordPress site has been hacked and you think you have removed the tampering, but the site still redirects (forcibly) to another site, the malformed JAVASCRIPT code may still be there somewhere. Embedding a single line of invalid JAVASCRIPT The following code is embedded malicious JAVASCRIPT code (malware). &#60;script src=&#34;dock.********.com/m.js?ns=ns1&#34; type=&#34;text/javascript&#34;&#62;&#60;/script&#62; With just one line of code, this code calls and executes an external malicious script. In general, this type of malicious embedding is difficult to detect by malware disinfection plug-ins and inspections because of the wide variety of callers and the weasel-word situation. However, since Javascripts invoked from outside cannot rewrite or edit site files, they are less dangerous than dangerous PHP programs called backdoors. Therefore, it is possible to find the above malicious code and remove it by simply deleting this one line. How to find JAVASCRIPT injection This single line of malicious JAVASCRIPT code is often embedded in a file that is always loaded when WordPress is called. This is because hackers want to maximize their profits by redirecting users on every page of the defaced site. Such files that are always loaded in WordPress are the following. wp-config.php index.php header.php of the theme theme&#8217;s footer.php functions.php in theme index.php in theme sidebar.php in theme Visually inspect for the presence of a single line of unrecognizable JS code like the one shown above here. Examples embedded in the database There are also rare cases where such JAVASCRIPT is embedded in the database. In this case, a large amount of incorrect JAVASCRIPT code is written to database posts, and it is useful to use the Database Batch Search and Replace plugin to find and delete the incorrect code. Search by]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">8566</post-id>	</item>
		<item>
		<title>PHP programming to prevent SQL injection in WordPress</title>
		<link>https://blog.website-malware-removal.com/8315</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Thu, 18 May 2023 12:00:11 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=8315</guid>

					<description><![CDATA[Here is a small PHP programming trick to prevent SQL injection in WordPress. What is SQL injection? SQL injection is a hacking technique in which an illegal string is given to the SQL statement used to retrieve information from a database to retrieve unintended information or write incorrect data to the database. "SELECT * FROM users WHERE email = '". $_GET['email']."'" For example, if the above code was included in WordPress, a hacker could send data from the browser to SELECT * FROM $wpdb->users WHERE email = 'aaa@aaa.com' or 1 = 1 and have them execute a SQL statement such as In this case, 1=1 will always be true, so there is a possibility that all users&#8217; information could be pulled out. How to write PHP programming to prevent SQL injection in WordPress If you insert a process called escaping, which converts the processing characters specific to SQL statements as mere strings, it becomes difficult to illegally execute the SQL statement processing itself. WordPress has a built-in SQL statement escaping function called esc_sql. statement converted to non-executable string=esc_sql($_GET['email']); Besides, SQL injection can also be prevented by replacing SQL statements by explicitly specifying strings or numbers in a process called Prepare. Escaped SQL statement = $wpdb->prepare( "SELECT * FROM $wpdb->users WHERE email = %s or ID = %d", $_GET['email'], $_GET['id']) prepare causes %s to be escaped and assigned as a simple string with first factor $_GET[&#8217;email&#8217;], and %d to be escaped and assigned as a number $_GET[&#8216;id&#8217;]. [Free] WordPress:Malware Scanning &#038; Security Plugin [Malware and Virus Detection and Removal].]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">8315</post-id>	</item>
		<item>
		<title>What is a WordPress injection attack?</title>
		<link>https://blog.website-malware-removal.com/8180</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 05 Apr 2023 12:00:37 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[.ico]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[index.php]]></category>
		<category><![CDATA[injection]]></category>
		<category><![CDATA[javascript]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[scanner]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=8180</guid>

					<description><![CDATA[There are various methods by which WordPress can be hacked, the most common of which is called an injection attack. This section describes these injection attacks. What is an injection attack? Injection is a Japanese word meaning injection. In other words, it is an attack in which a hacker embeds some malicious programming code or database data into a site. Injection attacks can be performed through vulnerabilities in plug-ins or brute force attacks in which a hacker repeatedly logs in to find out the administrator&#8217;s password. Reference How do hackers tamper with WordPress and embed malware? Types of Injection Attacks The following is a description of the typical types of injection attacks, in the order in which they are most often performed on WordPress. 1 Code Injection In this attack, a hacker embeds malware into a legitimate WordPress file. The most common files in which malicious code is embedded are index.php and wp-config.php, which are executed each time the site is viewed. For example, the following code is embedded and the malware is executed every time a user accesses the site. index.php /*sa6ahds6wr ← An identifier to check for the presence of the hacker's malicious code is also embedded @include(/var/www/.... /.6sada8dh.ico) ← Injection of the include portion to load the malware itself /*sa6ahds6wr Code injection is not necessarily written into a legitimate file, but may be installed as a single independent program on the server. This program may be a backdoor that serves as an entry point for hackers to re-hack, or it may have the ability to automatically reinfect or investigate the server. 2 SQL Injection WordPress generates websites with two types of data styles: real files, such as program files and HTML files, and data recorded in databases. An attack that illegally embeds or alters data in this database is called SQL injection. This attack involves creating users with unauthorized administrator privileges, writing unauthorized code in plug-ins or theme settings to be executed when the website is displayed, or embedding a large amount of Javascript code in content (posts) to cause users accessing the content to be sent to another This can be used for redirect attacks, for example, where a large amount of JavaScript code is embedded in content (posts) to send users who access the content to another site. 3 XML Injection This is an injection attack that has been on the rise in recent years, in which malformed URLs or pages are embedded in the XML of WordPress sitemaps, with the goal of hooking search engines. It causes a large number of pages that you do not remember to be trapped in the search results. In many cases, the malicious pages themselves are also embedded in the server, causing a variety of malicious pages to be displayed on the server. Detecting Injection WordPress injection attacks are often difficult to prevent. Reference Can a hacker attack on WordPress itself be prevented? However, simple measures can prevent most of them. Reference Five free WordPress security measures If you have already had an injection attack that has inserted malicious code [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">8180</post-id>	</item>
		<item>
		<title>Benefits and How to Change the Database Prefix (wp_) in WordPress</title>
		<link>https://blog.website-malware-removal.com/7589</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 21 Oct 2022 01:08:23 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=7589</guid>

					<description><![CDATA[A prefix is a common prefix used for table names in the WordPress database. We will explain the benefits of changing this and how to do so. What is a WordPress prefix? In addition to image files and programs, WordPress stores content and configuration data in a database. The database has a box-like structure called a table that holds each piece of data, and a prefix is a common prefix used for each table. The prefix is usually &#8220;wp_&#8221; and is defined in wp-config.php as follows. /** * WordPress database table prefix $table_prefix = 'wp_'; Should I change the prefix? Before installing WordPress, you can change the prefix by rewriting the prefix definition section of wp-config.php above. Although it is not usually necessary to change the prefix, there are advantages to changing it for improved security or if you want to have multiple WordPress installations in a single database. Reasons why changing the prefix improves security One of the most common WordPress attack methods is SQL injection attacks, which exploit vulnerabilities in plug-ins and other programs. In a SQL injection attack, the database can be rewritten from the outside, and the instructions for database rewriting are sent by the hacker via the Internet. In this case, if the prefix is not wp_, which is the default setting, the attack has a higher chance of failure, which is useful for improving security. Although extremely rare, it is possible to find vulnerabilities in popular plug-ins that allow such SQL injection attacks, so it is useful for improving security by eliminating such possibilities. Multiple WordPress installations in one database It is also possible to install multiple WordPress sites in a single database by changing the prefix of the newly installed WordPress site. Generally, we believe that changing the prefix is more commonly used for this purpose. How to change the prefix If you are installing a new WordPress installation, you can change the prefix by rewriting the prefix definition section of wp-config.php and installing WordPress. Example $table_prefix = 'wpsecond_'; Change database prefix with plugin if wordpress is already built The safest way to change the prefix of an already built WordPress is to use a plugin that will also change the table prefix, change the wp-config.php settings, and rewrite all other prefix-related information recorded in the database. Once you have installed the plugin by searching for &#8220;Brozzme DB Prefix &#038; Tools Add-ons&#8221; on the add plugin screen, you can change the prefix from Tools > DB PREFIX in the admin screen. We recommend that you make a database backup before changing the prefix. We recommend using a security plugin to improve WordPress security. Free WordPress:Malware Scan &#038; Security Plug-in [Malware and Virus Detection and Removal].]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">7589</post-id>	</item>
		<item>
		<title>WordPress security, prevent SQL injection with HTACCESS</title>
		<link>https://blog.website-malware-removal.com/7182</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 17 Jun 2022 01:33:14 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[htaccess]]></category>
		<category><![CDATA[injection]]></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=7182</guid>

					<description><![CDATA[We will explain how to prevent SQL injection to improve WordPress security. What is SQL Injection? WordPress text data, settings, and user login information are recorded in a database, software that can efficiently store and retrieve information. SQL injection is the unauthorized retrieval or modification of data in this database by exploiting a gap (vulnerability) in the program. Most WordPress tampering (malware) mainly infects files, but in rare cases, this database-related vulnerability may appear, in which case SQL injection may be used. Let&#8217;s look at an example of SQL injection. $sql = "Select * from wp-user where id = '". $_REQUEST['userid']."'" ; This code selects a user in the database with a user id sent over the network, but is vulnerable to sqL injection. For example, a hacker could insert the following code from the outside into the transmitted data named userid. =1';Update wp-user set password cell = 'any password' where id ='1 This would execute two connected sql processing instructions as shown below. Select * from wp-user where id = '1';Update wp-user set password cell = 'any password' where id ='1' This would be a pointless database selection process and code that would rewrite the administrator&#8217;s password. The problem is that there is no escaping process to treat the externally submitted data $_REQUEST[&#8216;userid&#8217;] as a single variable. Since these vulnerabilities are often covered by updating plugins and themes, constant updating of plugins and themes is an effective way to prevent hackers from attacking your site. Prevent SQL injection with HTACCESS settings Simple SQL injection like this can be prevented to some extent with HTACCESS. Add the following settings to HTACCESS &#60;IfModule mod_rewrite.c&#62; RewriteEngine On RewriteCond %{QUERY_STRING} (;&#124;&#34;&#124;=&#124;').*(select&#124;insert&#124;union&#124;declare&#124;drop&#124;update) [NC]. RewriteRule ^(.*)$ - [F,L] &#60;/IfModule&#62; This process determines externally sent data that includes SQL statement execution processing such as SELECT (originally sent data should be words like userid and should not include SQL execution processing) and blocks it in advance. This security setting can be easily configured from the WordPress administration screen using the [Free] WordPress: Malware Scan &#038; Security Plug-in [Malware and Virus Detection and Removal]. You can also check plug-ins for SQL injection vulnerabilities. Please take advantage of this service.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">7182</post-id>	</item>
		<item>
		<title>10 security-related terms that WordPress operators should know</title>
		<link>https://blog.website-malware-removal.com/7145</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Thu, 09 Jun 2022 01:48:26 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[error]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=7145</guid>

					<description><![CDATA[Operating WordPress requires some knowledge of security-related issues. This section will explain some commonly used security-related terms. 1 Vulnerability A vulnerability is a gap in a program that allows the programmer and site operator to perform an unintended action. For example, if a plug-in has an image upload function and there is no mechanism to verify that the upload function is being executed with administrative privileges and that the image is an image, it is possible to upload an unauthorized program over the network to the server. 2 Malware The term &#8220;malware&#8221; is an umbrella term that includes computer viruses. It stands for &#8220;malicious software&#8221; and refers to the main body of a program (or its embedded parts) that performs malicious actions not intended by the site operator or program author. 3 Backdoor A backdoor is a program that is installed on a server and serves as a starting point for hackers to perform the activities they want to perform on the server. The difference from a vulnerability is that it is embedded with the intention to execute a malicious program. For example, if the following code is placed on a server, any program can be sent across the network and executed on the server. eval($_POST['backdoor']); The following is an example of what kind of malicious programs can be executed. Send spam mails Modify the site and direct the user to another site. Create malicious pages Hosting viruses Hosting viruses. Mining virtual currency etc&#8230; 4 Comment spam, spam mail Spam, originally a product of ground meat, has come to be used in the West as a metaphor for something that is so common on our dinner tables that we have grown tired of it and no longer need it. In other words, it is a large amount of unwanted advertising. Since WordPress allows anyone to write comments and anyone can send inquiry e-mails, these unnecessary advertisements are sometimes mechanically sent in large quantities to the comments section or to the administrator&#8217;s e-mail. 5 Brute Force Attacks In Japanese, this means a brute force attack. In WordPress, this attack is most often performed on the login screen. Using a dictionary of hundreds of thousands of commonly used passwords, the hacker programmatically and mechanically performs one login operation after another, attempting to log in with WordPress administrator privileges. This is called a brute force attack and can slow down the site. 6 SQL Injection Injection is an unauthorized embedding. In WordPress, content, administrator passwords, and site settings are recorded in a database, a piece of software that efficiently stores and retrieves data. SQL statements are the processing code that records and modifies data in the database and can be executed from the programs included in WordPress. Hackers take advantage of vulnerabilities in the WordPress program to attempt to rewrite this database. It is sometimes possible to take advantage of a vulnerability to execute a malicious SQL statement to, for example, rewrite the password for administrative privileges. 7 Redirect Hack, SEO Hack A tampering (malware) that forces users who access your site to go to [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">7145</post-id>	</item>
		<item>
		<title>What are program vulnerabilities in WordPress?</title>
		<link>https://blog.website-malware-removal.com/7051</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Wed, 25 May 2022 01:39:23 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[error]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></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=7051</guid>

					<description><![CDATA[WordPress and plugins require updates to close vulnerabilities, but we will explain the most dangerous types of vulnerabilities. What are the most dangerous vulnerabilities in WordPress? WordPress contains between 2,000 and 5,000 PHP programming files, including the WordPress mainframe, themes, and plugins. These programs may contain vulnerabilities due to programmer error or lack of knowledge, although the probability is very low. The most dangerous vulnerabilities are those that allow external parties to make changes to the database or files via the Internet without any kind of authentication. A database is a system that holds dynamically generated and rewritable data that is separate from the program files that store the content and settings of WordPress posts. In some cases, these vulnerabilities are intentionally embedded in programs downloaded from illegal sites that offer free downloads of paid themes and plug-ins. Are vulnerabilities dangerous just because they exist? Vulnerabilities are not dangerous just because they exist. The most dangerous vulnerabilities are those that are known to hackers in a way that allows them to know that the vulnerability exists, how they can use it, and how they can find out that the vulnerability is on the site. Furthermore, if a vulnerable WordPress version or plugin is used on a large number of sites and is also present on your site, the possibility of tampering with your site becomes much greater. The longer a vulnerability is discovered, the more likely it is to be exploited by hackers, and the longer it is left unchecked, the greater the security problem. The vulnerability of WordPress has been publicized by NPOs such as JVN in Japan to alert people of the vulnerability. Examples of specific vulnerable programs Let&#8217;s take a look at what specific programs are vulnerable. 1 Example of a vulnerability that allows database rewriting from the outside without authentication $user = $_POST['user']; $sql = "SELECT FROM wp-user where user_name = '". $user."'"; $wpdb->query($sql); This program is a program that receives data and searches the database for it in a process called $_POST. In addition to the process of sending data directly from the outside to this program and searching the database, arbitrary SQL statements can be connected and executed. For example, you could create a wordpress admin user. This kind of method of attacking database vulnerabilities is called SQL injection. 2 Examples of vulnerabilities that allow files to be tampered with from the outside without authentication $data = $_POST['data']; $filename = $_POST['filename']; file_put_contents($filename,$data); This program receives data in a process called $_POST and writes out text with the filename and data received. It is possible for a hacker to write a program on the server with an arbitrary file name and contents, so it is possible to write an illegal PHP program and make it accessible and usable from a browser. Such a vulnerability is called file upload arbitrariness, and if this vulnerability is exploited, it is possible to embed a backdoor or do anything that can be done on the server, including rewriting the database. 3 Examples of vulnerabilities that allow files to be viewed externally [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">7051</post-id>	</item>
		<item>
		<title>Can the WordPress database be tampered with or infected by malware?</title>
		<link>https://blog.website-malware-removal.com/6785</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 28 Feb 2022 06:20:59 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[injection]]></category>
		<category><![CDATA[javascript]]></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=6785</guid>

					<description><![CDATA[Most WordPress malware and tampering is done to program files, and only rarely is the database tampered with. However, when a database tampering vulnerability is found in a very popular plugin, database tampering (known as SQL injection) hacking can become an epidemic. How can WordPress databases be tampered with or embedded with malware? If there is no malware or tampering in the WordPress files, but the site is redirected to another site, links are rewritten, or other symptoms are not corrected, database data tampering is suspected. Malware written to the WordPress database is most often JAVASCRIPT, a script that is executed by the browser, and the content often has several characteristics. The tampering with the database can be written as a vulnerable plugin setting that is executed on every page load, or embedded in a WordPress post to force users viewing the site to redirect and skip to another site, or other malicious behavior. Most of them. 1 String.fromCharCode() This JS process is very commonly used in malware to obfuscate and execute programs that hackers want to hide. 2 ＜script＞ This tag is an embedded JAVASCRIPT tag. WordPress does not generally use JAVASCRIPT for posts or fixed pages, so the presence of this tag indicates that some malicious program may have been embedded by SQL injection. 3 _trgfy80yth 3 _trgfy80yth_ Random String It is also common to see JAVASCRIPT programs beginning with _random_ embedded in many submissions. This is also most often a type of tampering called an SEO hack that sends the site to another site. How to look for and remove database tampering The above common tampering patterns can be detoxified by searching and replacing them with a plugin called Search Regex. It is also possible to search and remove more database tampering patterns with the [Free] WordPress:Malware Scan &#038; Security Plugin [Malware and Virus Detection and Removal] created by WordPress Doctor.]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">6785</post-id>	</item>
		<item>
		<title>What are the symptoms of a WordPress hack? Here are some of the tampering details of various hackers.</title>
		<link>https://blog.website-malware-removal.com/6396</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Fri, 07 May 2021 05:28:11 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[clean]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[error]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[htaccess]]></category>
		<category><![CDATA[injection]]></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=6396</guid>

					<description><![CDATA[1 Back door Vulnerabilities, known as backdoors, allow hackers to install hidden entry points on your site to gain access to your WordPress site through the misuse of server privileges. Once the backdoor is exploited, the hacker can access or rewrite all files on the hosting server, or install programs. (This would compromise multiple sites hosted on the same server). Sucuri reports that backdoors continue to be one of the many post-hack actions taken by attackers, with 71% of infected sites having some form of backdoor installation. 2 PharmaHack. Pharma hacks are used to insert malicious code into older versions of WordPress websites and plugins to cause search engines to display pharmaceutical ads when they search your website. This vulnerability can also be a reason for search engines to block your site on the grounds that it is delivering spam. PharmaHack&#8217;s behavior includes plugins and database backdoors. The embedding of this malicious code is often obfuscated in the database and leaks out the plummet, so a thorough cleanup operation, including the database, is required to fix the vulnerability. Reference Please use a plugin that also detects database malware [Free] WordPress:Malware Scan &#038; Security Plug-in [Malware and Virus Detection and Removal]. 3 Brute Force Attacks (brute force attacks) Strong login attempts use automated scripts to exploit weak passwords and attempt to log into a site. Two-step authentication, limiting the number of login attempts, monitoring for unauthorized logins, blocking IPs, and using strong passwords are the easiest and most effective ways to prevent brute force attacks. Brute force attacks also cause site slowdowns and other damage because they send large numbers of login enforcers to the site. Malicious Redirect Redirect Hack A malicious redirect is a vulnerability or a hacker who enters through a brute force attack creates a backdoor in WordPress and injects redirect code into your website. A malicious redirect is a mechanism that is embedded in a website to forcefully misdirect users who visit a site to another site. The redirect code is often placed in obfuscated form in .htaccess files or other core WordPress files, directing web traffic to the malicious site. Cross-site scripting (XSS) Cross-site scripting (XSS) is the injection of malicious scripts into a trusted website or application. Attackers take advantage of this to induce malicious code (usually browser-side scripts) to execute without the end user&#8217;s knowledge. An example would be some script included in a link that is executed the moment it is accessed on the site side. Since it does not involve rewriting the site&#8217;s internal files, it is limited in what it can do, so it is often less damaging than backdoors and the like. Cross-site scripting vulnerabilities are the most common vulnerabilities found in WordPress plugins. Denial of Service Denial of Service (DoS) vulnerabilities are dangerous vulnerabilities that exploit errors or bugs in your code to squeeze the memory of your website&#8217;s operating system. Hackers can use an outdated version of WordPress software, a bug, or a backdoor to another site they target to launch a DoS attack via your site, bringing your site [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">6396</post-id>	</item>
		<item>
		<title>Learn how hackers rewrite (alter) files on your WordPress site to increase security!</title>
		<link>https://blog.website-malware-removal.com/5126</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Mon, 21 Jan 2019 03:23:32 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[injection]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[scanner]]></category>
		<category><![CDATA[security]]></category>
		<category><![CDATA[virus]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=5126</guid>

					<description><![CDATA[As convenience and site functionality increases with the improved capabilities of programs on servers, not just WordPress, tampering with files on servers has become a major problem. In this article, we will explain how hackers rewrite WordPress files and consider ways to improve security. What happens when files on the server are altered by hackers? Hackers are most often altering files on your site in order to make money. We have made a brief list of specific activities that hackers are doing by rewriting your site. They try to profit from the number of hits by directing users to another site that accesses your site infect the personal computers of users accessing your site with viruses to steal credit card information, etc. Link to your site so that the hacker can rank your site higher in search engines to profit from your site Concealing the identity of the hacker by using your site as a springboard for other hacking activities Embed fake pages on your site to steal users&#8217; personal and credit card information Send advertising emails from your server to multiple users, enticing them to purchase goods or software This kind of hacker activity can be very annoying to visitors to your site and to other sites, because your site is at risk of being a victim, but it can also be a perpetrator. How hackers rewrite WordPress files 1. Taking away administrative privileges WordPress is the most popular CMS in the world. It is a very flexible system that allows you to post any content you want, edit themes, plugins, etc. from the administration screen. This convenience allows hackers to log in with administrator privileges to your site, allowing them to directly embed malware into your site. The main method hackers use to seize administrative privileges is a brute force attack, in which they mechanically repeat logins and search for passwords by brute force. We recommend that you take the following precautions to prevent the loss of administrator privileges. (1) Change your password to one generated by WordPress. Go to Administration &#62; User List &#62; Edit Admin User and change the password to the one generated by WordPress at the bottom of the page. (2) Deny access to the hacker&#8217;s computor who has been conducting brute force attacks. By using the security plug-ins we have developed, you can automatically disable access to the computer of a hacker who has conducted a brute force attack. Link WordPress: Malware Scanning &#38; Security Plugin Once the plugin is installed, it is very easy to enable the &#8220;Login Lockdown&#8221;, &#8220;WPSCAN Prohibit&#8221;, and &#8220;Brute Force Attack IP Access Prohibit to XMLRPC,wp-login&#8221; functions by checking them. How hackers rewrite wordpress files2 Using theme and plugin program vulnerabilities Next, hackers can also modify files on the server by working directly on the programs uploaded to the server without taking away administrative privileges. This is done by exploiting program vulnerabilities in a very sophisticated way. The WordPress program is made up of thousands of programs, but very rarely, there are gaps in the WordPress itself, plugins, or themes [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">5126</post-id>	</item>
		<item>
		<title>8 characteristics of sites that can be hacked by WordPress</title>
		<link>https://blog.website-malware-removal.com/4872</link>
		
		<dc:creator><![CDATA[wpdoctoradmin]]></dc:creator>
		<pubDate>Tue, 03 Jul 2018 01:38:48 +0000</pubDate>
				<category><![CDATA[WordPress Security]]></category>
		<category><![CDATA[backdoor]]></category>
		<category><![CDATA[check]]></category>
		<category><![CDATA[database]]></category>
		<category><![CDATA[free]]></category>
		<category><![CDATA[hacked]]></category>
		<category><![CDATA[htaccess]]></category>
		<category><![CDATA[index.php]]></category>
		<category><![CDATA[injection]]></category>
		<category><![CDATA[malware]]></category>
		<category><![CDATA[plugin]]></category>
		<category><![CDATA[removal]]></category>
		<category><![CDATA[scan]]></category>
		<category><![CDATA[scanner]]></category>
		<category><![CDATA[security]]></category>
		<guid isPermaLink="false">https://blog.website-malware-removal.com/?p=4872</guid>

					<description><![CDATA[We would like to explain the most common characteristics of the sites we have repaired at WordPress Doctor that have suffered malware damage due to hacker infiltration. If you take the following security measures, you will be able to reduce hacker infiltration to a great extent. User passwords are simple English words or regular strings of characters. Logging in at the WordPress login screen can be done manually, but it is also easy for hackers to programmatically repeat login enforcement 24 hours a day without a break. Since it is easy to obtain the ID of a WordPress user, which is output by some themes, it is possible to log in as an administrator as long as the password is known, and if the administrator privileges are taken away, the user can freely read and write files on the server. If the administrator privileges are taken away, the user can freely read and write files on the server. Hackers often use a list of hundreds of thousands of passwords to automatically and repeatedly enforce logins to gain administrator privileges. The latest versions of WordPress automatically generate hard-to-guess passwords, which makes it very difficult for a hacker to gain administrative privileges. The versions of WordPress and plugins with the greatest vulnerabilities are. Some versions of WordPress itself and some versions of plugins (vulnerabilities in large and popular plugins are easy targets) have vulnerabilities that can give you complete control over your site. The following is a risk classification of vulnerabilities called CSVV. Severity CVSS Basic Value Possible threats to the vulnerability Level III (Danger) 7.0 to 10.0 Threats that could result in complete remote control of the system Threats that could result in the alteration of most data For example, OS command injection, SQL injection, arbitrary instruction execution by buffer overflow, etc. Level II (Warning) 4.0 to 6.9 Threats that could lead to the leakage of critical information Threats that may lead to service outages For example, bypassing access control, or denial-of-service (DoS) threats that cause all systems to shut down. Other threats that fall under Level III but have low reproducibility Level I (Caution) 0.0 to 3.9 Threats that cause damage to a part of the system. Threats that require complex conditions to attack. For example, cross-site scripting, partial information leakage by directory traversal, and denial-of-service (DoS) threats that cause partial system shutdown. Other threats that fall under Level II but have low reproducibility You can use the vulnerability scanner of WordPress Doctor to check if you are using a vulnerable WordPress or plug-ins. WordPress Vulnerability Assessment Security Scanner File permissions are not set correctly. You can set write permissions on server files so that they cannot be inadvertently written to from the outside. It is recommended that the following write permissions be maintained at a minimum to ensure security. Root directory 0755 wp-includes/ 0755 .htaccess 0644 wp-admin/index.php 0555 wp-admin/js/ 755 wp-content/themes/ 0755 wp-content/plugins/ 0755 wp-admin/ 0755 wp-content/ 0755 wp-config.php 0644 If the write permissions for WordPress files and folders are set to 777 (writable with all permissions), security is greatly reduced. [&#8230;]]]></description>
		
		
		
		<post-id xmlns="com-wordpress:feed-additions:1">4872</post-id>	</item>
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