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https://github.com/splunk/security_content
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pyth0n1c
70 lines
2.4 KiB
YAML
70 lines
2.4 KiB
YAML
name: System Information Discovery Detection
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id: 8e99f89e-ae58-4ebc-bf52-ae0b1a277e72
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version: 2
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date: '2021-09-07'
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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 system information discovery techniques used by attackers to understand
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configurations of the system to further exploit it.
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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="*wmic* qfe*"
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OR Processes.process=*systeminfo* OR Processes.process=*hostname*) by Processes.user
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Processes.process_name Processes.process Processes.dest Processes.parent_process_name
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| `drop_dm_object_name(Processes)` | eventstats dc(process) as dc_processes_by_dest
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by dest | where dc_processes_by_dest > 2 | stats values(process) as process min(firstTime)
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as firstTime max(lastTime) as lastTime by user, dest parent_process_name | `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)` | `system_information_discovery_detection_filter`'
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how_to_implement: To successfully implement this search you need to be ingesting information
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on process that include the name of the process responsible for the changes from
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your endpoints into the `Endpoint` datamodel in the `Processes` node.
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known_false_positives: Administrators debugging servers
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references:
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- https://web.archive.org/web/20210119205146/https://oscp.infosecsanyam.in/priv-escalation/windows-priv-escalation
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tags:
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analytic_story:
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- Discovery Techniques
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asset_type: Windows
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cis20:
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- CIS 6
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- CIS 8
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confidence: 50
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context:
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- Source:Endpoint
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- Stage:Recon
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- Stage:Discovery
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dataset:
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1082/atomic_red_team/windows-sysmon.log
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impact: 30
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kill_chain_phases:
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- Actions on Objectives
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message: Potential system information discovery behavior on $dest$ by $User$
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mitre_attack_id:
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- T1082
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nist:
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- DE.CM
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observable:
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- name: dest
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type: Endpoint
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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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- Attacker
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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.user
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- Processes.process_name
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- Processes.dest
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risk_score: 15
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security_domain: endpoint
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supported_tas:
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- Splunk_TA_microsoft_sysmon
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