sigmahighHunting

UAC Bypass Using Windows Media Player - File

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

MITRE ATT&CK

defense-evasionprivilege-escalation

Detection Query

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*

Author

Christian Burkard (Nextron Systems)

Created

2021-08-23

Data Sources

windowsFile Events

Platforms

windows

References

https://github.com/hfiref0x/UACME

Tags

attack.defense-evasionattack.privilege-escalationattack.t1548.002

Raw Content

title: UAC Bypass Using Windows Media Player - File
id: 68578b43-65df-4f81-9a9b-92f32711a951
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.defense-evasion
    - 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