TrustedPath UAC Bypass Pattern

 1title: TrustedPath UAC Bypass Pattern
 2id: 4ac47ed3-44c2-4b1f-9d51-bf46e8914126
 3status: test
 4description: Detects indicators of a UAC bypass method by mocking directories
 5references:
 6    - https://medium.com/tenable-techblog/uac-bypass-by-mocking-trusted-directories-24a96675f6e
 7    - https://www.wietzebeukema.nl/blog/hijacking-dlls-in-windows
 8    - https://github.com/netero1010/TrustedPath-UACBypass-BOF
 9author: Florian Roth (Nextron Systems)
10date: 2021-08-27
11tags:
12    - attack.defense-evasion
13    - attack.t1548.002
14logsource:
15    category: process_creation
16    product: windows
17detection:
18    selection:
19        Image|contains: 'C:\Windows \System32\'
20    condition: selection
21falsepositives:
22    - Unknown
23level: critical

References

• UAC Bypass by Mocking Trusted Directories

  

  Hello Everyone,

  
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• Hijacking DLLs in Windows

  

  DLL Hijacking is a popular technique for executing malicious payloads. This post lists nearly 300 executables vulnerable to relative path DLL Hijacking on Windows 10 (1909), and shows how with a few lines of VBScript some of the DLL hijacks can be executed with elevated privileges, bypassing UAC.

  
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• GitHub - netero1010/TrustedPath-UACBypass-BOF: Cobalt Strike beacon object file implementation for trusted path UAC bypass. The target executable will be called without involving "cmd.exe" by using DCOM object.

  

  Cobalt Strike beacon object file implementation for trusted path UAC bypass. The target executable will be called without involving "cmd.exe" by using DCOM object. - netero1010/TrustedPat...

  
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