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P4T12ICK
61 lines
1.9 KiB
YAML
61 lines
1.9 KiB
YAML
name: Remote System Discovery with Net
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id: 9df16706-04a2-41e2-bbfe-9b38b34409d3
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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: Hunting
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description: This analytic looks for the execution of `net.exe` or `net1.exe` with
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command-line arguments utilized to discover remote systems. The argument `domain
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computers /domain` returns a list of all domain computers. Red Teams and adversaries
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alike use net.exe to identify remote systems for situational awareness and Active
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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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Image|endswith:
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- net.exe
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- net1.exe
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selection2:
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CommandLine: '*/do*'
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selection3:
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CommandLine: '*domain computers*'
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selection4:
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CommandLine: '*/do*'
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selection5:
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CommandLine: '*view*'
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condition: (selection1) and selection2 and selection3 or selection4 or selection5
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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: 50
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impact: 30
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message: Remote system discovery enumeration 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: 15
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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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