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pyth0n1c
70 lines
2.7 KiB
YAML
70 lines
2.7 KiB
YAML
name: Runas Execution in CommandLine
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id: 4807e716-43a4-11ec-a0e7-acde48001122
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version: 1
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date: '2021-11-12'
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author: Teoderick Contreras, Splunk
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type: Hunting
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datamodel:
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- Endpoint
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description: This analytic look for a spawned runas.exe process with a administrator
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user option parameter. This parameter was abused by adversaries, malware author
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or even red teams to gain elevated privileges in target host. This is a good hunting
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query to figure out privilege escalation tactics that may used for different stages
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like lateral movement but take note that administrator may use this command in purpose
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so its better to see other event context before and after this analytic.
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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 `process_runas` AND Processes.process
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= "*/user:*" AND Processes.process = "*admin*" by Processes.dest Processes.user
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Processes.parent_process_name Processes.parent_process Processes.process_name Processes.process
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Processes.process_id Processes.parent_process_id | `drop_dm_object_name(Processes)`
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| `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `runas_execution_in_commandline_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. In addition,
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confirm the latest CIM App 4.20 or higher is installed and the latest TA for the
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endpoint product.
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known_false_positives: A network operator or systems administrator may utilize an
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automated or manual execute this command that may generate false positives. filter
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is needed.
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references:
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- https://app.any.run/tasks/ad4c3cda-41f2-4401-8dba-56cc2d245488/
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tags:
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analytic_story:
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- Windows Privilege Escalation
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- Hermetic Wiper
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confidence: 50
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context:
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- Source:Endpoint
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- Stage:Privilege Escalation
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dataset:
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/malware/vilsel/sysmon.log
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impact: 50
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kill_chain_phases:
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- Exploitation
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message: elevated process using runas on $dest$ by $user$
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mitre_attack_id:
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- T1134
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- T1134.001
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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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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.dest
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- Processes.user
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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.process
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- Processes.process_id
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- Processes.parent_process_id
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risk_score: 25
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security_domain: endpoint
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asset_type: Endpoint
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