Suspicious COLDRIVER RunMRU History Clearing via Reg Delete (via process_creation)

PremiumReviewedSigma · Medium · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-07-29
Updated
2026-08-28

ATT&CK techniques

Defense Evasion
  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Cred Access

  8. Discovery

  9. Lateral Movement

  10. Collection

  11. C2

  12. Exfiltration

  13. Impact

What it detects

This rule detects deletion of the Explorer RunMRU registry key through reg delete which the COLDRIVER ClickFix chain performs to erase evidence of the Run dialog command the victim was tricked into executing. Programmatic clearing of RunMRU is a strong anti forensics signal.

Related detections8 linkedT1070.003 — drag to rearrange
Suspicious Shell History Clearing or Disabling (via process_creation)
Suspicious File Immutability Set via chattr for Anti-Removal on Linux
Suspicious Clearing of Linux Authentication and History Logs
Windows Registry RunMRU Key Deletion
Windows: Detect reg.exe Deletion of RunMRU Registry Key
Windows PowerShell Command History Disable via Remove-Module psreadline
Windows PowerShell Clears Console History via Clear-History
Cisco Network OS Log and Archive Clearing via “clear logging” Commands
Suspicious COLDRIVER RunMRU History Clearing via Reg Delete (via process_creation)
Pivot detection · T1070.003 · 8 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.