WordPress File Change Monitoring: Detect Unauthorized Changes

File change monitoring tracks modifications to your WordPress files over time. It doesn't just verify against known-good versions—it alerts you to any changes, helping you catch attacks and understand what's happening on your site.

Why Monitor File Changes?

Early Attack Detection

Attacks often modify files:

• Injecting backdoors
• Adding malware
• Modifying templates for spam
• Creating new malicious files

Monitoring catches these changes immediately.

Unauthorized Changes

Not all changes are attacks:

• Staff making unplanned modifications
• Plugins modifying files unexpectedly
• Theme updates changing templates

All should be tracked and reviewed.

Compliance Requirements

Some regulations require file integrity monitoring:

• PCI-DSS for payment sites
• HIPAA for healthcare
• Various security standards

What to Monitor

High Priority

• WordPress core: wp-admin, wp-includes
• Configuration: wp-config.php, .htaccess
• Theme files: Especially active theme
• Critical plugins: Security, payment, auth

Medium Priority

• All plugin files
• Inactive themes
• Custom code directories

Lower Priority (High Noise)

• Cache directories
• Log files
• Temporary files

How File Change Monitoring Works

Baseline Creation

1. Scan all monitored files
2. Calculate checksum for each
3. Store as baseline

Ongoing Monitoring

1. Periodically scan files
2. Compare to baseline
3. Identify changes
4. Alert on differences

Change Detection

• Modified: File content changed
• Added: New file created
• Deleted: File removed
• Permissions: File permissions changed

WP Folder Shield File Monitoring

Automated Monitoring

• Daily automatic scans
• Customizable scan frequency
• Smart exclusions for known-changing files

Intelligent Alerting

• Email notifications for critical changes
• Dashboard alerts
• Severity classification
• False positive reduction

Change History

• Track all changes over time
• When files changed
• What changed
• Before/after comparison

Responding to File Changes

Legitimate Changes

After updates, plugin installs, or intentional modifications:

1. Verify changes are expected
2. Update baseline
3. Document the change

Suspicious Changes

For unexpected modifications:

1. Investigate immediately
2. Review what changed
3. Check for malware signatures
4. Restore if malicious
5. Find entry point

Best Practices

Scan Regularly

Daily scans catch issues quickly. More frequent for high-value sites.

Review Alerts Promptly

Don't ignore change notifications. Investigate same day.

Update Baseline After Changes

After legitimate changes, update baseline to prevent repeated alerts.

Combine with Other Monitoring

File monitoring is one layer. Add malware scanning, log monitoring, and traffic analysis.

Get WP Folder Shield for comprehensive file change monitoring with intelligent alerting and easy investigation.