Sigma rule: UAC Bypass Using EventVwr

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-d1b4338b70c6, updated 2022-11-22T00:00:00.000Z.

Rule

Title
UAC Bypass Using EventVwr
Status
test
Level
high
Author
Antonio Cocomazzi (idea), Florian Roth (Nextron Systems)
Date
2022-04-27
Modified
2022-11-22
File
rules/windows/file/file_event/file_event_win_uac_bypass_eventvwr.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects the pattern of a UAC bypass using Windows Event Viewer

Log source

product
windows
category
file_event

Detection

selection:
    TargetFilename|endswith:
        # Removed the start just in case the logging backend doesn't expand ENV variables when they're used
        - '\Microsoft\Event Viewer\RecentViews'
        - '\Microsoft\EventV~1\RecentViews'
filter:
    Image|startswith:
        - 'C:\Windows\System32\'
        - 'C:\Windows\SysWOW64\'
condition: selection and not filter

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.privilege-escalation
  • attack.stealth

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/file/file_event/file_event_win_uac_bypass_eventvwr.yml

Sources and licences

  • SigmaHQ

    "UAC Bypass Using EventVwr" by Antonio Cocomazzi (idea), Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/file/file_event/file_event_win_uac_bypass_eventvwr.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 EventVwr",
entity page, dataset version ref-d1b4338b70c6, updated 2022-11-22T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/63e4f530-65dc-49cc-8f80-ccfa95c69d43 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 63e4f530-65dc-49cc-8f80-ccfa95c69d43, 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.