mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
divious1
119 lines
3.9 KiB
YAML
119 lines
3.9 KiB
YAML
asset_type: Endpoint
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baselines:
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- id: fc0edc95-ff2b-48b0-9f6f-63da3789fd23
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name: Previously seen command line arguments
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type: splunk
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- id: df98763b-0b08-4281-8ef9-08db7ac572a9
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name: Baseline of SMB Traffic - MLTK
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type: splunk
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confidence: medium
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creation_date: '2017-01-08'
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data_metadata:
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data_models:
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- Endpoint
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data_source:
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- Endpoint Intel
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providing_technologies:
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- Carbon Black Response
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- CrowdStrike Falcon
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- Sysmon
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- Tanium
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- Ziften
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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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detect:
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splunk:
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correlation_rule:
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notable:
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nes_fields: dest, process, parent_process, cmdline
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rule_description: 'A process detected on $dest$ is launching netsh.exe. '
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rule_title: Process launching netsh.exe detected on $dest$
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risk:
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risk_object: dest
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risk_object_type:
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- system
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risk_score: 50
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schedule:
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cron_schedule: 0 * * * *
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earliest_time: -70m@m
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latest_time: -10m@m
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search: '| tstats `security_content_summariesonly` count values(Processes.process) min(_time)
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as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes where
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Processes.process=netsh.exe by Processes.parent_process Processes.process_name
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Processes.user Processes.dest | `drop_dm_object_name("Processes")` | `security_content_ctime(firstTime)`|`security_content_ctime(lastTime)`'
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suppress:
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suppress_fields: dest, parent_process
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suppress_period: 86400s
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eli5: This search looks for all the parent processes of netsh.exe and returns that
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process, the command-line used to execute it, the host name, and the user context
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under which it ran.
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entities:
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- dest
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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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id: b89919ed-fe5f-492c-b139-95dbb162040e
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investigations:
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- id: bc91a8cf-35e7-4bb2-8140-e756cc06fd76
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name: Get Authentication Logs For Endpoint
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type: splunk
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- id: fecf2918-670d-4f1c-872b-3d7317a41bf9
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name: Get Parent Process Info
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type: splunk
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- id: fdcfb369-1725-4c24-824a-22972d7f0d55
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name: Get Risk Modifiers For User
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type: splunk
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- id: bc91a8cf-35e7-4bb2-8140-e756cc06fd71
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name: Get Process Info
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type: splunk
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- id: 3d6c3213-5fff-4a1e-b57d-b24c262171e7
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name: Get Notable History
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type: splunk
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- id: f3fb4d1b-5f33-4b01-b541-c7af9534c242
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name: Get Notable Info
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type: splunk
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- id: fdcfb369-1725-4c24-824a-22972d7f0d65
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name: Get Risk Modifiers For Endpoint
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type: splunk
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- id: bc91a8cf-35e7-4bb2-8140-e756cc06fd74
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name: Get User Information from Identity Table
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type: splunk
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- id: bc91a8cf-35e7-4bb2-8140-e756cc06fd22
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name: Investigate Web Activity From Host
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type: splunk
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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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maintainers:
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- company: Splunk
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email: bpatel@splunk.com
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name: Bhavin Patel
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mappings:
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cis20:
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- CIS 8
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kill_chain_phases:
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- Actions on Objectives
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mitre_attack:
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- Execution
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- Command-Line Interface
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- Persistence
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- Defense Evasion
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- Disabling Security Tools
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nist:
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- PR.PT
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- DE.CM
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modification_date: '2018-11-02'
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name: Processes launching netsh
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original_authors:
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- company: Splunk
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email: bpatel@splunk.com
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name: Bhavin Patel
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references: []
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security_domain: endpoint
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spec_version: 2
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type: splunk
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version: '2.0'
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