Sigma rule: UAC Bypass via ICMLuaUtil

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-884d2d222bb6, updated 2022-09-27T00:00:00.000Z.

Rule

Title
UAC Bypass via ICMLuaUtil
Status
test
Level
high
Author
Florian Roth (Nextron Systems), Elastic (idea)
Date
2022-09-13
Modified
2022-09-27
File
rules/windows/process_creation/proc_creation_win_uac_bypass_icmluautil.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the pattern of UAC Bypass using ICMLuaUtil Elevated COM interface

Log source

product
windows
category
process_creation

Detection

selection:
    ParentImage|endswith: '\dllhost.exe'
    ParentCommandLine|contains:
        - '/Processid:{3E5FC7F9-9A51-4367-9063-A120244FBEC7}'
        - '/Processid:{D2E7041B-2927-42FB-8E9F-7CE93B6DC937}'
filter:
    - Image|endswith: '\WerFault.exe'
    - OriginalFileName: 'WerFault.exe'
condition: selection and not filter

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.privilege-escalation
  • attack.t1548.002

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_uac_bypass_icmluautil.yml

Sources and licences

  • SigmaHQ

    "UAC Bypass via ICMLuaUtil" by Florian Roth (Nextron Systems), Elastic (idea) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_uac_bypass_icmluautil.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: UAC Bypass via ICMLuaUtil",
entity page, dataset version ref-884d2d222bb6, updated 2022-09-27T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/49f2f17b-b4c8-4172-a68b-d5bf95d05130 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 49f2f17b-b4c8-4172-a68b-d5bf95d05130, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.