UAC Bypass Using Windows Media Player - Process

 1title: UAC Bypass Using Windows Media Player - Process
 2id: 0058b9e5-bcd7-40d4-9205-95ca5a16d7b2
 3status: test
 4description: Detects the pattern of UAC Bypass using Windows Media Player osksupport.dll (UACMe 32)
 5references:
 6    - https://github.com/hfiref0x/UACME
 7author: Christian Burkard (Nextron Systems)
 8date: 2021-08-23
 9modified: 2024-12-01
10tags:
11    - attack.defense-evasion
12    - attack.privilege-escalation
13    - attack.t1548.002
14logsource:
15    category: process_creation
16    product: windows
17detection:
18    selection_img_1:
19        Image: 'C:\Program Files\Windows Media Player\osk.exe'
20    selection_img_2:
21        Image: 'C:\Windows\System32\cmd.exe'
22        ParentCommandLine: '"C:\Windows\system32\mmc.exe" "C:\Windows\system32\eventvwr.msc" /s'
23    selection_integrity:
24        IntegrityLevel:
25            - 'High'
26            - 'System'
27            - 'S-1-16-16384' # System
28            - 'S-1-16-12288' # High
29    condition: 1 of selection_img_* and selection_integrity
30falsepositives:
31    - Unknown
32level: high