Get DomainPolicy with Powershell Script Block
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.
- Type: TTP
- Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
- Datamodel: Endpoint
- Last Updated: 2021-08-26
- Author: Teoderick Contreras, Splunk
- ID: a360d2b2-065a-11ec-b0bf-acde48001122
ATT&CK
| ID | Technique | Tactic |
|---|---|---|
| T1201 | Password Policy Discovery | 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`
Associated Analytic Story
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.
Required field
- _time
- EventCode
- Message
- ComputerName
- User
Kill Chain Phase
- Reconnaissance
Known False Positives
Administrators or power users may use this command for troubleshooting.
RBA
| Risk Score | Impact | Confidence | Message |
|---|---|---|---|
| 30.0 | 50 | 60 | powershell process having commandline $Message$ to query domain policy. |
Reference
- https://github.com/S1ckB0y1337/Active-Directory-Exploitation-Cheat-Sheet
- https://powersploit.readthedocs.io/en/latest/Recon/Get-DomainPolicy/
- https://attack.mitre.org/techniques/T1201/
Test Dataset
Replay any dataset to Splunk Enterprise by using our replay.py tool or the UI.
Alternatively you can replay a dataset into a Splunk Attack Range
source | version: 1