Tanaka Zakku
45 lines
1.3 KiB
YAML
45 lines
1.3 KiB
YAML
title: Suspicious Reconnaissance Activity
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analysis:
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recommendation: Check if the user that executed the commands is suspicious (e.g.
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service accounts, LOCAL_SYSTEM)
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author: Florian Roth, omkar72
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date: 2019/01/16
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description: Detects suspicious command line activity on Windows systems
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_2:
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CommandLine: net group "domain admins" /dom
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SELECTION_3:
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CommandLine: net localgroup administrators
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SELECTION_4:
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CommandLine: net group "enterprise admins" /dom
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SELECTION_5:
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CommandLine: net accounts /dom
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condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3 or SELECTION_4 or SELECTION_5))
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falsepositives:
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- Inventory tool runs
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- Penetration tests
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- Administrative activity
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fields:
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- CommandLine
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- ParentCommandLine
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id: d95de845-b83c-4a9a-8a6a-4fc802ebf6c0
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level: medium
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logsource:
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category: process_creation
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product: windows
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modified: 2021/08/09
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references:
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- https://redcanary.com/blog/how-one-hospital-thwarted-a-ryuk-ransomware-outbreak/
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- https://thedfirreport.com/2020/10/18/ryuk-in-5-hours/
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status: experimental
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tags:
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- attack.discovery
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- attack.t1087.001
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- attack.t1087.002
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- attack.t1087
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yml_filename: win_susp_recon_activity.yml
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yml_path: /Users/user/Documents/YamatoSecurity/sigma/rules/windows/process_creation
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