name: Get DomainPolicy with Powershell Script Block
id: a360d2b2-065a-11ec-b0bf-acde48001122
version: 2
date: '2022-05-02'
author: Teoderick Contreras, Splunk
type: TTP
datamodel: []
description: The following analytic utilizes PowerShell Script Block Logging (EventCode=4104)
  to identify the execution of the `Get DomainPolicy` commandlet used to obtain the
  password policy in a Windows domain. Red Teams and adversaries alike may use PowerShell
  to enumerate domain policies for situational awareness and Active Directory Discovery.
search: '`powershell` EventCode=4104 ScriptBlockText ="*Get-DomainPolicy*" | stats count min(_time)
  as firstTime max(_time) as lastTime by Opcode Computer UserID EventCode ScriptBlockText | `security_content_ctime(firstTime)`
  | `security_content_ctime(lastTime)` | `get_domainpolicy_with_powershell_script_block_filter`'
how_to_implement: The following Hunting analytic requires PowerShell operational logs
  to be imported. Modify the powershell macro as needed to match the sourcetype or
  add index. This analytic is specific to 4104, or PowerShell Script Block Logging.
known_false_positives: Administrators or power users may use this command for troubleshooting.
references:
- https://github.com/S1ckB0y1337/Active-Directory-Exploitation-Cheat-Sheet
- https://powersploit.readthedocs.io/en/latest/Recon/Get-DomainPolicy/
- https://attack.mitre.org/techniques/T1201/
tags:
  analytic_story:
  - Active Directory Discovery
  confidence: 60
  context:
  - Source:Endpoint
  - Stage:Discovery
  dataset:
  - https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1059.001/powershell_script_block_logging/domainpolicy.log
  impact: 50
  kill_chain_phases:
  - Reconnaissance
  message: powershell process having commandline $ScriptBlockText$ to query domain policy.
  mitre_attack_id:
  - T1201
  observable:
  - name: Computer
    type: Hostname
    role:
    - Victim
  - name: UserID
    type: User
    role:
    - Victim
  product:
  - Splunk Enterprise
  - Splunk Enterprise Security
  - Splunk Cloud
  required_fields:
  - _time
  - ScriptBlockText
  - Opcode
  - Computer
  - UserID
  - EventCode
  risk_score: 30
  security_domain: endpoint
  asset_type: Endpoint