How to Remove HTML/ScrInject.B Trojan from a WordPress Site

Removing the HTML/ScrInject.B trojan from a WordPress site involves several steps to ensure that the infection is fully eradicated and that your site is secure against future attacks. This guide provides a detailed process for effectively addressing this threat.

1. Backup Your Site

Before making any changes, it is essential to back up your WordPress files and database. This precautionary step ensures that you can restore your site if something goes wrong during the cleanup process.

2. Scan for Malware

Using security plugins to scan your site for malware is critical. Some popular options include:

Wordfence Sucuri Security MalCare

These tools can help identify infected files and provide an overview of your site's security.

3. Identify Infected Files

Look for unusual or suspicious files in your WordPress installation, particularly in the wp-content/uploads, wp-includes, and wp-admin directories. Pay attention to files that have been modified recently or have unusual names or extensions.

4. Remove Infected Files

Once identified, remove the infected files. If you're unsure about a file, research it or consult with a professional. Check your theme and plugin files for any injected code, focusing on obfuscated code or unfamiliar functions, especially in and .

5. Update WordPress Themes and Plugins

Ensure that your WordPress core themes and plugins are up to date. Updates often include security patches that can help protect your site.

6. Change Passwords

Change passwords for your WordPress admin account and FTP accounts. Use strong, unique passwords to enhance your security.

7. Check User Accounts

Review user accounts on your WordPress site. Remove any suspicious or unauthorized accounts to prevent any future threats.

8. Install Security Plugins

Consider installing dedicated security plugins that provide features like firewall protection, login attempt monitoring, and more. This adds another layer of security to your site.

9. Implement Security Best Practices

Adopt strong security practices:

Use strong passwords and two-factor authentication Limit login attempts and use security questions Regularly back up your site and database

10. Monitor Your Site

After cleaning your site, continue to monitor it for suspicious activity. Regular scans and updates will help keep it secure and free from future threats.

11. Consider Professional Help

If you’re unable to remove the infection or if the site remains compromised, consider hiring a professional malware removal service or a security expert. They can provide tailored solutions and ensure a thorough cleanup.

Conclusion: Cleaning up a WordPress site infected with HTML/ScrInject.B requires diligence and a systematic approach. Following these steps will help you remove the trojan and strengthen your site's security against future threats.