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T1552.006 Group Policy Preferences

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.1

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).2

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-GPPPassword3

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

Item Value
ID T1552.006
Sub-techniques T1552.001, T1552.002, T1552.003, T1552.004, T1552.005, T1552.006, T1552.007, T1552.008
Tactics TA0006
Platforms Windows
Permissions required User
Version 1.0
Created 11 February 2020
Last Modified 17 June 2020

Procedure Examples

ID Name Description
G0064 APT33 APT33 has used a variety of publicly available tools like Gpppassword to gather credentials.1011
S0194 PowerSploit PowerSploit contains a collection of Exfiltration modules that can harvest credentials from Group Policy Preferences.78
S0692 SILENTTRINITY SILENTTRINITY has a module that can extract cached GPP passwords.9


ID Mitigation Description
M1015 Active Directory Configuration Remove vulnerable Group Policy Preferences.6
M1047 Audit Search SYSVOL for any existing GGPs that may contain credentials and remove them.4
M1051 Update Software Apply patch KB2962486 which prevents credentials from being stored in GPPs.45


ID Data Source Data Component
DS0017 Command Command Execution
DS0022 File File Access