Detectionhightest
UAC Bypass Using Windows Media Player - File
Detects the pattern of UAC Bypass using Windows Media Player osksupport.dll (UACMe 32)
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Christian Burkard (Nextron Systems)Created Mon Aug 23Updated Sun Oct 0968578b43-65df-4f81-9a9b-92f32711a951windows
Log Source
WindowsFile Event
ProductWindows← raw: windows
CategoryFile Event← raw: file_event
Events for file system activity including creation, modification, and deletion.
Detection Logic
Detection Logic2 selectors
detection:
selection1:
TargetFilename|startswith: 'C:\Users\'
TargetFilename|endswith: '\AppData\Local\Temp\OskSupport.dll'
selection2:
Image: 'C:\Windows\system32\DllHost.exe'
TargetFilename: 'C:\Program Files\Windows Media Player\osk.exe'
condition: 1 of selection*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Rule Metadata
Rule ID
68578b43-65df-4f81-9a9b-92f32711a951
Status
test
Level
high
Type
Detection
Created
Mon Aug 23
Modified
Sun Oct 09
Path
rules/windows/file/file_event/file_event_win_uac_bypass_wmp.yml
Raw Tags
attack.defense-evasionattack.privilege-escalationattack.t1548.002