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74 lines
2.5 KiB
YAML
74 lines
2.5 KiB
YAML
name: Processes launching netsh
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id: b89919ed-fe5f-492c-b139-95dbb162040e
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version: 3
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date: '2020-07-10'
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author: Josef Kuepker, Splunk
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type: batch
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datamodel:
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- Endpoint
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description: This search looks for processes launching netsh.exe. Netsh is a command-line
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scripting utility that allows you to, either locally or remotely, display or modify
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the network configuration of a computer that is currently running. Netsh can be
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used as a persistence proxy technique to execute a helper DLL when netsh.exe is
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executed. In this search, we are looking for processes spawned by netsh.exe and
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executing commands via the command line.
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search: '| tstats `security_content_summariesonly` count values(Processes.process)
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AS Processes.process min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes
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where Processes.process=*netsh* by Processes.parent_process_name Processes.parent_process
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Processes.process_name Processes.user Processes.dest |`drop_dm_object_name("Processes")`
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|`security_content_ctime(firstTime)` |`security_content_ctime(lastTime)` |`processes_launching_netsh_filter`'
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how_to_implement: To successfully implement this search, you must be ingesting data
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that records process activity from your hosts to populate the endpoint data model
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known_false_positives: Some VPN applications are known to launch netsh.exe. Outside
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of these instances, it is unusual for an executable to launch netsh.exe and run
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commands.
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references: []
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tags:
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analytic_story:
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- Netsh Abuse
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- Disabling Security Tools
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- DHS Report TA18-074A
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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 8
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confidence: 70
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context:
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- source:endpoint
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- stage: Defense Evasion
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dataset:
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1562.004/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 process $process_name$ that tries to execute netsh commandline $process$
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in host $dest$
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mitre_attack_id:
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- T1562.004
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nist:
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- PR.PT
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- DE.CM
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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.process
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- Processes.parent_process_name
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- Processes.parent_process
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- Processes.process_name
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- Processes.user
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- Processes.dest
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risk_score: 42
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security_domain: endpoint
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