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P4T12ICK
78 lines
2.4 KiB
YAML
78 lines
2.4 KiB
YAML
name: Creation of Shadow Copy
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id: eb120f5f-b879-4a63-97c1-93352b5df844
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version: 1
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date: '2019-12-10'
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author: Patrick Bareiss, Splunk
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status: production
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type: TTP
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description: Monitor for signs that Vssadmin or Wmic has been used to create a shadow
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copy.
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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: '*create*'
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Image|endswith: vssadmin.exe
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selection2:
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CommandLine: '*shadow*'
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selection3:
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CommandLine: '*shadowcopy*'
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Image|endswith: wmic.exe
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selection4:
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CommandLine: '*create*'
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condition: (selection1 and selection2) or selection3 or selection4
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how_to_implement: You must be ingesting endpoint data that tracks process activity,
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including parent-child relationships from your endpoints, to populate the Endpoint
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data model in the Processes node. The command-line arguments are mapped to the "process"
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field in the Endpoint data model.
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known_false_positives: Legitimate administrator usage of Vssadmin or Wmic will create
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false positives.
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references:
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- https://2017.zeronights.org/wp-content/uploads/materials/ZN17_Kheirkhabarov_Hunting_for_Credentials_Dumping_in_Windows_Environment.pdf
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tags:
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analytic_story:
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- Credential Dumping
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asset_type: Endpoint
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confidence: 90
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impact: 90
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message: An instance of $parent_process_name$ spawning $process_name$ was identified
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on endpoint $dest$ by user $user$ attempting to create a shadow copy to perform
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offline password cracking.
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mitre_attack_id:
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- T1003.003
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- T1003
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observable:
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- name: user
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type: User
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role:
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- Victim
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- name: dest
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type: Hostname
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role:
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- Victim
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- name: parent_process
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type: Process
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role:
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- Parent Process
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- name: process_name
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type: Process
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role:
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- Child Process
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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: 81
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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/T1003.003/atomic_red_team/windows-sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: xmlwineventlog
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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/T1003.003/atomic_red_team/crowdstrike_falcon.log
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source: crowdstrike
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sourcetype: crowdstrike:events:sensor
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