Removing Fake Google AdSense Malware from WordPress Website

A client contacted us about unauthorized Google AdSense advertisements appearing across their WordPress website. Despite never setting up AdSense, popup ads and banners were displaying on every page, creating a poor user experience and potential security risks.

The client’s WordPress website was displaying unauthorized Google AdSense advertisements without their knowledge or consent. The malicious ads included:

• Intrusive popup advertisements
• Banner ads in header and footer areas
• Mobile redirects to suspicious websites
• Ads using hijacked publisher ID: ca-pub-16445279507—-

<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1644527950797005"
     crossorigin="anonymous"></script>
<script async custom-element="amp-auto-ads"
        src="https://cdn.ampproject.org/v0/amp-auto-ads-0.1.js">
</script>

• Security Risk Level: Critical
• Malware Type: Known javascript malware (rogueads2unwanted_adsense.5)
• Affected Pages: 100% of website pages
• User Experience: Severely degraded due to popup interruptions
• SEO Risk: High potential for search engine penalties
• Revenue Loss: Unauthorized ads generating income for attackers
• Brand Reputation: Damaged by association with suspicious advertisements

• Plugin Vulnerability: Header Footer Code Manager plugin was compromised
• Database Injection: Malicious entries inserted into plugin’s database table
• Code Injection: Unauthorized JavaScript loading external ad scripts
• Security Bypass: Malware disguised as legitimate custom code
• Persistent Infection: Code automatically regenerated after manual removal attempts

Our comprehensive malware removal approach included:

Phase 1: Investigation & Analysis

• Complete source code examination
• Database forensic analysis
• Security vulnerability assessment
• Malware identification and classification

Phase 2: Malware Removal

• Database cleanup of malicious entries
• Removal of compromised Header Footer Code Manager plugin
• File system scan and cleaning
• Core file integrity verification

Phase 3: Security Hardening

• Implementation of security monitoring
• Plugin security audit
• Access control improvements
• Backup system verification

Immediate Results:

• ✅ 100% removal of unauthorized advertisements
• ✅ Complete elimination of popup interruptions
• ✅ Restored normal website functionality
• ✅ Eliminated security warnings and flags

Long-term Benefits:

• ✅ Improved website loading speed
• ✅ Enhanced user experience
• ✅ Restored search engine trust
• ✅ Protected brand reputation
• ✅ Prevented unauthorized revenue theft

Security Improvements:

• ✅ Implemented real-time malware monitoring
• ✅ Established plugin vetting procedures
• ✅ Enhanced database security protocols
• ✅ Created automated backup systems