Unsecured Credentials: Group Policy Preferences (T1552.006)

Tactic: Credential Access · Platforms: Windows

The interactive view maps 1 detection strategy, 3 mitigations, 2 threat groups, 3 software entries to this technique, alongside D3FEND countermeasures and data-component coverage.

Sub-technique of Unsecured Credentials (T1552).

Overview

Adversaries may attempt to find unsecured credentials in Group Policy Preferences (GPP). GPP are tools that allow administrators to create domain policies with embedded credentials. These policies allow administrators to set local accounts.

These group policies are stored in SYSVOL on a domain controller. This means that any domain user can view the SYSVOL share and decrypt the password (using the AES key that has been made public).

The following tools and scripts can be used to gather and decrypt the password file from Group Policy Preference XML files:

* Metasploit’s post exploitation module: post/windows/gather/credentials/gpp * Get-GPPPassword * gpprefdecrypt.py

On the SYSVOL share, adversaries may use the following command to enumerate potential GPP XML files: dir /s * .xml

Explore

• Open T1552.006 in the interactive ATT&CK matrix
• ATT&CK Intelligence View guide
• Official MITRE ATT&CK entry for T1552.006
• Sigma detection rules for MITRE ATT&CK
• Built by Shahrukh Khan