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36 lines
1.5 KiB
YAML
36 lines
1.5 KiB
YAML
title: CobaltStrike Named Pipe Pattern Regex
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id: 0e7163d4-9e19-4fa7-9be6-000c61aad77a
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status: experimental
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description: Detects the creation of a named pipe matching a pattern used by CobaltStrike Malleable C2 profiles
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references:
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- https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575
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date: 2021/07/30
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author: Florian Roth
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tags:
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- attack.defense_evasion
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- attack.privilege_escalation
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- attack.t1055
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logsource:
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product: windows
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category: pipe_created
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definition: 'Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). In the current popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config) this is not there, you have to add it yourself.'
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detection:
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selection:
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- PipeName|re: '\\mojo\.5688\.8052\.183894939787088877[0-9a-f]{2}'
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- PipeName|re: '\\mojo\.5688\.8052\.35780273329370473[0-9a-f]{2}'
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- PipeName|re: '\\wkssvc[0-9a-f]{2}'
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- PipeName|re: '\\ntsvcs[0-9a-f]{2}'
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- PipeName|re: '\\DserNamePipe[0-9a-f]{2}'
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- PipeName|re: '\\SearchTextHarvester[0-9a-f]{2}'
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- PipeName|re: '\\mypipe\-f[0-9a-f]{2}'
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- PipeName|re: '\\mypipe\-h[0-9a-f]{2}'
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- PipeName|re: '\\windows\.update\.manager[0-9a-f]{2}'
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- PipeName|re: '\\windows\.update\.manager[0-9a-f]{3}'
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- PipeName|re: '\\ntsvcs_[0-9a-f]{2}'
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- PipeName|re: '\\scerpc_[0-9a-f]{2}'
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- PipeName|re: '\\scerpc[0-9a-f]{2}'
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condition: selection
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falsepositives:
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- Unknown
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level: critical
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