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P4T12ICK
46 lines
1.3 KiB
YAML
46 lines
1.3 KiB
YAML
name: Detection of tools built by NirSoft
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id: 3d8d201c-aa03-422d-b0ee-2e5ecf9718c0
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version: 3
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date: '2020-07-21'
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author: Bhavin Patel, Splunk
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status: experimental
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type: TTP
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description: This search looks for specific command-line arguments that may indicate
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the execution of tools made by Nirsoft, which are legitimate, but may be abused
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by attackers.
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data_source:
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- Sysmon Event ID 1
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search:
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selection1:
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CommandLine:
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- '* /stext *'
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- '* /scomma *'
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condition: (selection1)
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how_to_implement: You must be ingesting endpoint data that tracks process activity,
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including parent-child relationships from your endpoints to populate the Endpoint
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data model in the Processes node. The command-line arguments are mapped to the "process"
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field in the Endpoint data model.
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known_false_positives: While legitimate, these NirSoft tools are prone to abuse. You
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should verfiy that the tool was used for a legitimate purpose.
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references: []
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tags:
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analytic_story:
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- 'Emotet Malware DHS Report TA18-201A '
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asset_type: Endpoint
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confidence: 50
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impact: 50
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message: tbd
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mitre_attack_id:
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- T1072
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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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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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risk_score: 25
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security_domain: endpoint
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