Findstr GPP Passwords

Title: Findstr GPP Passwords
Status: test
Description:Look for the encrypted cpassword value within Group Policy Preference files on the Domain Controller. This value can be decrypted with gpp-decrypt.
References:
  -https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1552.006/T1552.006.md#atomic-test-1---gpp-passwords-findstr
Author: frack113
Date: 2021-12-27
modified:2023-11-11
Tags:

• -'attack.credential-access'
• -'attack.t1552.006'

Logsource:

• category: process_creation
• product: windows

Detection:
  selection_img:
    - Image|endswith:
      - '\find.exe'
      - '\findstr.exe'
    - OriginalFileName:
      - 'FIND.EXE'
      - 'FINDSTR.EXE'
  selection_cli:
    CommandLine|contains|all:
      -'cpassword'
      -'\sysvol\'
      -'.xml'

  condition:all of selection_*
Falsepositives:
  -Unknown
Level: high