52 lines
1.4 KiB
YAML
52 lines
1.4 KiB
YAML
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title: CobaltStrike Process Patterns
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ruletype: Sigma
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author: Florian Roth
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date: 2021/07/27
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description: Detects process patterns found in Cobalt Strike beacon activity (see
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reference for more details)
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_10:
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ParentCommandLine: '*\runonce.exe'
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SELECTION_2:
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CommandLine: '*\cmd.exe /C whoami*'
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SELECTION_3:
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ParentImage: C:\Temp*
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SELECTION_4:
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CommandLine: '*conhost.exe 0xffffffff -ForceV1*'
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SELECTION_5:
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ParentCommandLine:
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- '*/C whoami*'
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- '*cmd.exe /C echo*'
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- '* > \\.\pipe*'
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SELECTION_6:
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CommandLine:
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- '*cmd.exe /c echo*'
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- '*> \\.\pipe*'
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- '*\whoami.exe*'
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SELECTION_7:
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ParentImage: '*\dllhost.exe'
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SELECTION_8:
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Image: '*\cmd.exe'
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SELECTION_9:
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ParentImage: '*\runonce.exe'
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condition: (SELECTION_1 and ((SELECTION_2 and SELECTION_3) or (SELECTION_4 and SELECTION_5)
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or (SELECTION_6 and SELECTION_7) or (SELECTION_8 and SELECTION_9 and SELECTION_10)))
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falsepositives:
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- Other programs that cause these patterns (please report)
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id: f35c5d71-b489-4e22-a115-f003df287317
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level: high
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logsource:
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category: process_creation
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product: windows
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modified: 2021/08/30
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references:
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- https://hausec.com/2021/07/26/cobalt-strike-and-tradecraft/
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- https://thedfirreport.com/2021/08/29/cobalt-strike-a-defenders-guide/
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status: experimental
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tags:
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- attack.execution
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- attack.t1059
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