Malicious Vulnerable Driver Deployment for EDR Termination via file_event

PremiumReviewedSigma · High · v1
Product
windows
Category
file_event
Author
HuntRule
Published
2026-05-17
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 deployment of the vulnerable drivers aswArPots.sys and IObitUnlockers.sys that GHOSTENGINE abuses to terminate endpoint security processes and delete their binaries. These bring-your-own-vulnerable-driver components provide kernel-level primitives to disable defenses. Their presence indicates an active attempt to blind security tooling.

Related detections9 linkedT1685 — drag to rearrange
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Windows Defender Tampering via Set-MpPreference and Exclusions
Suspicious Windows Defender Real-Time Protection Disabled via Policy Registry by Cephalus Ransomware
Suspicious Microsoft Defender Path Exclusion of User Directories (via process_creation)
Malicious Windows Defender Tampering via Set-MpPreference (via process_creation)
Malicious Container Runtime Tampering via chmod on runc (via process_creation)
In-Memory AMSI or ETW Bypass in PowerShell (via process_creation)
Malicious Microsoft Defender Critical Security Components Disabled - Command (via process_creation)
Malicious Microsoft Defender Service Deactivation Attempt - Command (via process_creation)
Malicious Vulnerable Driver Deployment for EDR Termination via file_event
Pivot detection · T1685 · 9 related

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