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P4T12ICK
72 lines
2.1 KiB
YAML
72 lines
2.1 KiB
YAML
name: MacOS LOLbin
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id: 58d270fb-5b39-418e-a855-4b8ac046805e
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version: 1
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date: '2022-03-04'
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author: Patrick Bareiss, Splunk
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type: TTP
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datamodel:
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- Endpoint
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description: Detect multiple executions of Living off the Land (LOLbin) binaries in a
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short period of time.
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search: '`osquery` name=es_process_events columns.cmdline IN ("find*", "crontab*", "screencapture*", "openssl*", "curl*", "wget*", "killall*", "funzip*")
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| rename columns.* as *
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| stats min(_time) as firstTime max(_time) as lastTime values(cmdline) as cmdline, values(pid) as pid, values(parent) as parent, values(path) as path,
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values(signing_id) as signing_id, dc(path) as dc_path by username host
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| rename username as User, cmdline as process, path as process_path
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| where dc_path > 3
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| `security_content_ctime(firstTime)`| `security_content_ctime(lastTime)`
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| `macos_lolbin_filter`'
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how_to_implement: This detection uses osquery and endpoint security on MacOS.
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Follow the link in references, which describes how to setup process auditing in MacOS
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with endpoint security and osquery.
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known_false_positives: None identified.
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references:
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- https://osquery.readthedocs.io/en/stable/deployment/process-auditing/
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tags:
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analytic_story:
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- Living Off The Land
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asset_type: Endpoint
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cis20:
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- CIS 3
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- CIS 5
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- CIS 16
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confidence: 50
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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/T1059.004/macos_lolbin/osquery.log
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impact: 50
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kill_chain_phases:
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- Actions on Objectives
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message: Multiplle LOLbin are executed on host $host$ by user $user$
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mitre_attack_id:
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- T1059.004
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- T1059
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nist:
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- DE.CM
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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: process
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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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required_fields:
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- _time
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- columns.cmdline
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- columns.pid
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- columns.parent
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- columns.path
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- columns.signing_id
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- columns.username
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- host
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risk_score: 25
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security_domain: endpoint
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