Potential Unconstrained Delegation Discovery Via Get-ADComputer - ScriptBlock

Detects the use of the "Get-ADComputer" cmdlet in order to identify systems which are configured for unconstrained delegation.

title: Potential Unconstrained Delegation Discovery Via Get-ADComputer - ScriptBlock
id: cdfa73b6-3c9d-4bb8-97f8-ddbd8921f5c5
status: experimental
description: Detects the use of the "Get-ADComputer" cmdlet in order to identify systems which are configured for unconstrained delegation.
references:
    - https://pentestlab.blog/2022/03/21/unconstrained-delegation/
    - https://learn.microsoft.com/en-us/powershell/module/activedirectory/get-adcomputer?view=windowsserver2022-ps
author: frack113
date: 2025-03-05
tags:
    - attack.reconnaissance
    - attack.discovery
    - attack.credential-access
    - attack.t1018
    - attack.t1558
    - attack.t1589.002
logsource:
    product: windows
    category: ps_script
    definition: 'Requirements: Script Block Logging must be enable'
detection:
    selection:
        ScriptBlockText|contains:
            - '-Properties*TrustedForDelegation'
            - '-Properties*TrustedToAuthForDelegation'
            - '-Properties*msDS-AllowedToDelegateTo'
            - '-Properties*PrincipalsAllowedToDelegateToAccount'
            - '-LDAPFilter*(userAccountControl:1.2.840.113556.1.4.803:=524288)'
    condition: selection
falsepositives:
    - Legitimate use of the library for administrative activity
level: medium
regression_tests_path: regression_data/rules/windows/powershell/powershell_script/posh_ps_potential_unconstrained_delegation_discovery/info.yml

• T1018Remote System Discovery
• T1558Steal or Forge Kerberos Tickets
• T1589.002Email Addresses

• https://pentestlab.blog/2022/03/21/unconstrained-delegation/↗
• https://learn.microsoft.com/en-us/powershell/module/activedirectory/get-adcomputer?view=windowsserver2022-ps↗