The Challenge
An e-commerce business discovered their WordPress website had been compromised. The attack was multi-layered: malware had been injected into core files, SEO spam pages had been generated at scale to exploit the site's search authority, and Google had flagged the domain as potentially harmful. The site was effectively offline for customers, organic search traffic had collapsed, and the business owner was losing revenue by the hour.
Previous attempts to clean the site by simply reinstalling WordPress had failed — the malware kept returning within days, suggesting persistent backdoors that the initial response had missed.
The Approach
We conducted a systematic investigation and remediation:
- Forensic Analysis: Full file-system scan identifying 340+ modified or injected files across wp-content, wp-includes, and database tables
- Backdoor Hunting: Identified 4 distinct backdoor scripts hidden in image directories, theme functions, and a disguised mu-plugin
- Database Cleaning: Removed SEO spam injections from wp_posts, wp_options, and wp_postmeta tables without losing legitimate content
- Security Hardening: Implemented file integrity monitoring, disabled file editing, restricted upload types, and configured proper file permissions
- Blacklist Removal: Submitted Google reconsideration request with detailed remediation evidence
The Solution
Complete site recovery with root-cause elimination. The malware entry point was traced to an abandoned plugin with a known remote code execution vulnerability. All backdoors were removed, the database was cleaned, and security hardening prevented reinfection.
Architecture
Assessment Layer
Full filesystem and database forensic scan, identifying all compromised files
Remediation Layer
Surgical removal of malware, backdoors, and SEO spam across files and database
Hardening Layer
File permissions, security headers, plugin audit, upload restrictions, WAF configuration
Monitoring Layer
File integrity monitoring and automated daily security scans
Results
- Site fully operational within 48 hours of engagement
- 340+ compromised files identified and cleaned
- 4 persistent backdoors eliminated
- Google Safe Browsing flag removed within 5 days
- Organic search traffic recovered to pre-hack levels within 3 weeks
- Zero reinfections in the following 12 months
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