huntrule

Suspicious UAC Bypass via Fodhelper or Eventvwr Auto-Elevated Process

PremiumReviewedSigma · High · v1
Product
windows
Category
process_creation
Author
HuntRule
Published
2026-09-21
Updated
2026-09-21
AnalysisDetection

ATT&CK techniques

Priv Esc → Defense Evasion

  1. Recon

  2. Resource Dev

  3. Initial Access

  4. Execution

  5. Persistence

  6. Priv Esc

  7. Defense Evasion

  8. Cred Access

  9. Discovery

  10. Lateral Movement

  11. Collection

  12. C2

  13. Exfiltration

  14. Impact

What it detects

This rule detects fodhelper.exe or eventvwr.exe spawning a command interpreter, the hallmark of a registry-hijack UAC bypass used by NetWire RAT to gain elevated execution. These auto-elevating binaries should not launch shells. Detecting the parent-child pair exposes privilege escalation attempts.

Reporting behind it

Related detections9 linkedT1548.002 — drag to rearrange
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Suspicious UAC Bypass by Disabling Admin Consent Prompt via registry_set
Malicious Cloud Atlas UAC Bypass via fodhelper (via process_creation)
Suspicious computerdefaults.exe Spawning Child Process
Suspicious UAC Bypass via control.exe App Paths or Shell Open Command Hijack
Malicious UAC Bypass via COMAutoApprovalList Registry Modification (via registry_set)
Suspicious UAC Bypass via Fodhelper or Eventvwr Auto-Elevated Process
Pivot detection · T1548.002 · 9 related

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