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P4T12ICK
79 lines
2.7 KiB
YAML
79 lines
2.7 KiB
YAML
name: Remote WMI Command Attempt
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id: 272df6de-61f1-4784-877c-1fbc3e2d0838
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version: 3
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date: '2018-12-03'
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author: Rico Valdez, Michael Haag, Splunk
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type: TTP
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datamodel:
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- Endpoint
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description: The following analytic identifies usage of `wmic.exe` spawning a local
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or remote process, identified by the `node` switch. During triage, review parallel
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processes for additional commands executed. Look for any file modifications before
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and after `wmic.exe` execution. In addition, identify the remote endpoint and confirm
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execution or file modifications. Contain and isolate the endpoint as needed.
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search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
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as lastTime from datamodel=Endpoint.Processes where Processes.process_name=wmic.exe
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Processes.process=*node* by Processes.dest Processes.user Processes.parent_process
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Processes.process_name Processes.process Processes.process_id Processes.parent_process_id
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| `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
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| `remote_wmi_command_attempt_filter`'
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how_to_implement: You must be ingesting data that records process activity from your
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hosts to populate the Endpoint data model in the Processes node. You must also be
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ingesting logs with both the process name and command line from your endpoints.
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The command-line arguments are mapped to the "process" field in the Endpoint data
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model. Deprecated because duplicate of Remote Process Instantiation via WMI.
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known_false_positives: Administrators may use this legitimately to gather info from
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remote systems. Filter as needed.
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references:
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- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1047/T1047.yaml
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tags:
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analytic_story:
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- Suspicious WMI Use
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asset_type: Endpoint
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automated_detection_testing: passed
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cis20:
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- CIS 3
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- CIS 5
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confidence: 60
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context:
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- source:endpoint
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- stage: Execution
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dataset:
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1047/atomic_red_team/windows-sysmon.log
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impact: 60
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kill_chain_phases:
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- Actions on Objectives
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message: A wmic.exe process $process$ contain node commandline $process$ in host
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$dest$
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mitre_attack_id:
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- T1047
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nist:
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- PR.PT
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- PR.AT
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- PR.AC
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- PR.IP
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observable:
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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: user
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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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- Processes.user
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- Processes.process_name
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- Processes.parent_process_name
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- Processes.dest
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- Processes.parent_process
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- Processes.parent_process_id
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- Processes.process_id
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risk_score: 36
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security_domain: endpoint
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