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Author: Denis Shagimuratov

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Major signs of Malware on an infected WordPress site

Major signs of Malware on an infected WordPress site

Hi guys, I’d like to share some significant signals that tell about infection on a WordPress site. These data has been collected by our research team at CleanTalk. The team reviews up to 10k files weekly as well as we

Denis Shagimuratov February 17, 2026 Experience, Security 5 Comments Read more

WordPress Plugin Security Certification 2025 — Nonce Validation Passed

fix WordPress nonce error

Certified Secure: GDPR Cookie Compliance 5.0.9 Available on WordPress.org: GDPR Cookie Compliance plugin page The GDPR Cookie Compliance plugin (v5.0.9) has successfully passed the CleanTalk Plugin Security Certification (PSC-2025-64591). The certification confirms that the team implements all security controls and

Denis Shagimuratov October 29, 2025November 21, 2025 Security No Comments Read more

Cron as the way to re-infect WordPress

Cron as the way to re-infect WordPress

Our research team discovered a new type of tricky malware that modify cron to re-infect a WordPress site. It causes some problems because of unusual way of infection. Cron is a task scheduler in Unix-based systems that allows specific commands

Denis Shagimuratov October 23, 2024November 20, 2024 Experience, Security 2 Comments Read more

radio.php infects WordPress

radio.php infects WordPress

Radio.php is a classical backdoor or shell, it is using to infect and take control of a site. Through this backdoor an attacker is able to, For a note, radios.php is not a part of standard WordPress setup. How can

Denis Shagimuratov October 18, 2024October 19, 2024 Experience, Security 2 Comments Read more

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  1. WordPress Password Reset Email Spam | CleanTalk on How Security by CleanTalk Blocks Brute Force Login Attempts in WordPress

    […] requests are different from failed sign-ins or use of an exposed password. CleanTalk’s brute force login protection handles repeated…

  2. Website Malware Scanner That Crawls Every Page: Find Malware on Inner Pages - Plugin Security Certification (PSC) by CleanTalk on Malicious mu-plugins: The Stealthy WordPress Backdoor Hiding in wp-content/mu-plugins

    […] injected script is being printed by something on the server: a modified theme file, a plugin, an mu-plugin loader,…

  3. Website Malware Scanner That Crawls Every Page: Find Malware on Inner Pages - Plugin Security Certification (PSC) by CleanTalk on WordPress File Integrity Monitoring: Detect File Changes with Security by CleanTalk

    […] the free Security by CleanTalk WordPress plugin: server-side malware scanning with auto-cure, a file integrity monitor, a cloud firewall,…

  4. Dmitrii I on SC WordPress Malware in functions.php, db.php, and 1j2d192.php: Polymorphic Loaders and CleanTalk Cure

    Hi there, Thank you for your work. We will check your research

  5. Joey Honcoop on SC WordPress Malware in functions.php, db.php, and 1j2d192.php: Polymorphic Loaders and CleanTalk Cure

    Hi there! I'd like to provide some additional information on the SC Malware / Wordpress Backdoor as I've researched the…

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