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