name: Get DomainPolicy with Powershell Script Block
id: a360d2b2-065a-11ec-b0bf-acde48001122
version: 1
date: '2021-08-26'
author: Teoderick Contreras, Splunk
type: TTP
datamodel:
- Endpoint
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 Message ="*Get-DomainPolicy*" | stats count min(_time)
  as firstTime max(_time) as lastTime by EventCode Message ComputerName User | `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
  automated_detection_testing: passed
  confidence: 60
  context:
  - source:endpoint
  - stage:Reconnaissance
  dataset:
  - https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1201/pwd_policy_discovery/windows-powershell.log
  impact: 50
  kill_chain_phases:
  - Reconnaissance
  message: powershell process having commandline $Message$ to query domain policy.
  mitre_attack_id:
  - T1201
  observable:
  - name: ComputerName
    type: Hostname
    role:
    - Victim
  - name: User
    type: User
    role:
    - Victim
  product:
  - Splunk Enterprise
  - Splunk Enterprise Security
  - Splunk Cloud
  required_fields:
  - _time
  - EventCode
  - Message
  - ComputerName
  - User
  risk_score: 30
  security_domain: endpoint