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P4T12ICK
54 lines
1.8 KiB
YAML
54 lines
1.8 KiB
YAML
name: Domain Controller Discovery with Nltest
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id: 41243735-89a7-4c83-bcdd-570aa78f00a1
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version: 1
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date: '2021-08-30'
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author: Mauricio Velazco, Splunk
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status: production
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type: TTP
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description: This analytic looks for the execution of `nltest.exe` with command-line
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arguments utilized to discover remote systems. The arguments `/dclist:` and '/dsgetdc:',
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can be used to return a list of all domain controllers. Red Teams and adversaries
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alike may use nltest.exe to identify domain controllers in a Windows Domain for
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situational awareness and Active Directory Discovery.
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data_source:
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- Sysmon Event ID 1
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search:
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selection1:
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CommandLine:
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- '*/dsgetdc:*'
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- '*/dclist:*'
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Image|endswith: nltest.exe
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condition: (selection1)
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how_to_implement: To successfully implement this search you need to be ingesting information
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on process that include the name of the process responsible for the changes from
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your endpoints into the `Endpoint` datamodel in the `Processes` node.
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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://attack.mitre.org/techniques/T1018/
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tags:
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analytic_story:
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- Active Directory Discovery
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asset_type: Endpoint
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confidence: 70
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impact: 30
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message: Domain controller discovery on $dest$ by $user$
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mitre_attack_id:
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- T1018
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observable:
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- name: dest
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type: Endpoint
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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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risk_score: 21
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security_domain: endpoint
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tests:
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- name: True Positive Test
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attack_data:
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- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1018/AD_discovery/windows-sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: xmlwineventlog
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