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P4T12ICK
56 lines
1.9 KiB
YAML
56 lines
1.9 KiB
YAML
name: Windows connhost exe started forcefully
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id: c114aaca-68ee-41c2-ad8c-32bf21db8769
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version: 1
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date: '2020-11-06'
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author: Rod Soto, Jose Hernandez, Splunk
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type: TTP
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datamodel: []
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description: 'The search looks for the Console Window Host process (connhost.exe)
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executed using the force flag -ForceV1. This is not regular behavior in the Windows
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OS and is often seen executed by the Ryuk Ransomware. DEPRECATED This event is actually
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seen in the windows 10 client of attack_range_local. After further testing we realized
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this is not specific to Ryuk. '
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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="*C:\\Windows\\system32\\conhost.exe*
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0xffffffff *-ForceV1*" by Processes.user Processes.process_name Processes.process
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Processes.dest | `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)`|
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`security_content_ctime(lastTime)` | `windows_connhost_exe_started_forcefully_filter`'
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how_to_implement: You must be ingesting data that records the process-system activity
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from your hosts to populate the Endpoint Processes data-model object. If you are
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using Sysmon, you will need a Splunk Universal Forwarder on each endpoint from which
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you want to collect data.
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known_false_positives: This process should not be ran forcefully, we have not see
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any false positives for this detection
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references: []
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tags:
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analytic_story:
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- Ryuk Ransomware
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asset_type: Endpoint
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cis20:
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- CIS 8
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kill_chain_phases:
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- Delivery
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mitre_attack_id:
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- T1059.003
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nist:
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- PR.PT
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- DE.CM
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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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security_domain: endpoint
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confidence: 50
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impact: 50
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risk_score: 25
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context:
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- Unknown
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message: tbd
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observable:
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- name: field
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type: Unknown
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role:
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- Unknown
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