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
Malicious UAC Disable via EnableLUA Registry Modification via registry_set
Malicious UAC Bypass via ICMLuaUtil COM Elevation via process_creation
Malicious UAC Bypass via Eventvwr Execution Hijack via Process Creation
Malicious UAC Bypass via Fodhelper or ComputerDefaults Execution Hijack via Process Creation
Malicious FodHelper UAC Bypass via ms-settings Shell Command Hijack (via registry_set)
Suspicious Banana RAT UAC Skip Environment Variable in PowerShell
Malicious UAC Bypass via sdclt Handler Hijack (via registry_set)
Malicious UAC Bypass via ms-settings Handler Hijack (via registry_set)
Malicious DBatLoader DLL Sideloading via easinvoker.exe Loading netutils.dll (via image_load)
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.