WordPress security and malware recovery

Recovering Eight WordPress Sites After a Coordinated Malware Incident

A coordinated investigation, cleanup, and monitoring programme across eight compromised WordPress websites.

Project context

The setting

A professional services organisation needed eight related WordPress websites investigated and restored after a coordinated compromise. Identifying details remain confidential.

Challenge

The problem to solve

The incident included malicious code, a plugin-related backdoor, unauthorised administrator accounts, redirects, spam activity, suspicious files, and database entries requiring investigation.

My role and scope

What I was responsible for

I led the WordPress investigation and cleanup across the affected sites, removed identified persistence mechanisms, verified the restored environments, and monitored them after recovery.

01

Investigation and reasoning

  • Inspected WordPress files and database entries manually and with malware scans
  • Traced a plugin-related backdoor and persistent infection behaviour
  • Reviewed administrator accounts, redirects, spam activity, and suspicious files
02

Approach and implementation

  • Removed malicious files, code, database entries, and unauthorised administrators
  • Cleaned redirects and spam artefacts
  • Ran post-cleanup scans and manual checks across all eight websites
  • Continued monitoring for approximately 50 days

Measured Results

Verified Results & Performance Data

Quantitative before-and-after improvements and documented outcomes recorded during the project scope.

The project record documents eight websites cleaned and restored within four days. Follow-up scans during approximately 50 days of monitoring reported no malware detected. This monitoring period is not a guarantee against future reinfection.

Measured Result
Sites restored
8
Measured Result
Cleanup period
4 days
Measured Result
Follow-up monitoring
~50 days

Evidence note

Project cleanup record and follow-up malware scan record. Exact calendar dates and publishable screenshots are not recorded in the portfolio data.

Timeline of eight compromised WordPress websites restored across four days followed by fifty days of verification monitoring
Project record: 8 sites restored in 4 days followed by ~50 days monitoring (not a guarantee against reinfection).

Constraints and lessons

What this work made clear

  • Removing visible malware is not enough when persistence mechanisms remain
  • Account, file, database, and redirect checks need to be handled as one recovery process

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