Sigma rule: UAC Bypass Using Windows Media Player - Registry

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-e89d38e17a2f, updated 2023-08-17T00:00:00.000Z.

Rule

Title
UAC Bypass Using Windows Media Player - Registry
Status
test
Level
high
Author
Christian Burkard (Nextron Systems)
Date
2021-08-23
Modified
2023-08-17
File
rules/windows/registry/registry_set/registry_set_uac_bypass_wmp.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the pattern of UAC Bypass using Windows Media Player osksupport.dll (UACMe 32)

Log source

product
windows
category
registry_set

Detection

selection:
    TargetObject|endswith: '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Store\C:\Program Files\Windows Media Player\osk.exe'
    Details: 'Binary Data'
condition: selection

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/registry/registry_set/registry_set_uac_bypass_wmp.yml

Sources and licences

  • SigmaHQ

    "UAC Bypass Using Windows Media Player - Registry" by Christian Burkard (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_uac_bypass_wmp.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 Using Windows Media Player - Registry",
entity page, dataset version ref-e89d38e17a2f, updated 2023-08-17T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/5f9db380-ea57-4d1e-beab-8a2d33397e93 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 5f9db380-ea57-4d1e-beab-8a2d33397e93, 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.