Sigma rule: Potential Unconstrained Delegation Discovery Via Get-ADComputer - ScriptBlock

Rule

Title

Potential Unconstrained Delegation Discovery Via Get-ADComputer - ScriptBlock

Status

experimental

Level

medium

Author

frack113

Date

2025-03-05

File

rules/windows/powershell/powershell_script/posh_ps_potential_unconstrained_delegation_discovery.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

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

Log source

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

False positives (as the rule lists them)

• Legitimate use of the library for administrative activity

Tags

• attack.reconnaissance
• attack.discovery
• attack.credential-access
• attack.t1018
• attack.t1558
• attack.t1589.002

MITRE ATT&CK ids this rule names

• T1018
• T1558
• T1589.002

References

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

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/powershell/powershell_script/posh_ps_potential_unconstrained_delegation_discovery.yml