Florian Roth
61 lines
2.1 KiB
YAML
61 lines
2.1 KiB
YAML
title: CobaltStrike Named Pipe Patterns
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id: 85adeb13-4fc9-4e68-8a4a-c7cb2c336eb7
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status: experimental
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description: Detects the creation of a named pipe with a pattern found in 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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- https://gist.github.com/MHaggis/6c600e524045a6d49c35291a21e10752
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date: 2021/07/30
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modified: 2021/08/26
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author: Florian Roth, Christian Burkard
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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 or use this extended version that logs the Named Pipes used in this Sigma repo (https://github.com/Neo23x0/sysmon-config)'
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detection:
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selection_malleable_profiles:
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- PipeName|startswith:
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- '\mojo.5688.8052.183894939787088877'
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- '\mojo.5688.8052.35780273329370473'
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- '\mypipe-f'
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- '\mypipe-h'
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- '\ntsvcs'
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- '\scerpc'
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- '\win_svc'
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- '\spoolss'
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- '\msrpc_'
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- '\win\msrpc_'
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- '\wkssvc'
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- '\f53f'
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- '\windows.update.manager'
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- '\SearchTextHarvester'
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- '\DserNamePipe'
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- '\PGMessagePipe'
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- '\MsFteWds'
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- '\f4c3'
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- '\fullduplex_'
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- '\rpc_'
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- PipeName:
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- '\demoagent_11'
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- '\demoagent_22'
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selection_malleable_profile_CatalogChangeListener:
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PipeName|startswith: '\Winsock2\CatalogChangeListener-'
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PipeName|endswith: '-0,'
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filter:
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PipeName:
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- '\wkssvc'
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- '\spoolss'
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- '\scerpc'
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- '\ntsvcs'
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- '\SearchTextHarvester'
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- '\PGMessagePipe'
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- '\MsFteWds'
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condition: 1 of selection_malleable_profile* and not filter
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falsepositives:
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- Chrome instances using the exactly same name pipe named mojo.something
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level: high
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