UAC Bypass Using Windows Media Player - File

 Original Source: [Sigma source]
Title: UAC Bypass Using Windows Media Player - File
Status: test
Description:Detects the pattern of UAC Bypass using Windows Media Player osksupport.dll (UACMe 32)
References:
  -https://github.com/hfiref0x/UACME
Author: Christian Burkard (Nextron Systems)
Date: 2021-08-23
modified:2022-10-09
Tags:
  • -'attack.privilege-escalation'
  • -'attack.t1548.002'
Logsource:
  • category: file_event
  • product: windows
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*
Falsepositives:
  -Unknown
Level: high