52 lines
1.4 KiB
YAML
52 lines
1.4 KiB
YAML
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title: Capture Credentials with Rpcping.exe
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author: Julia Fomina, oscd.community
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date: 2020/10/09
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description: Detects using Rpcping.exe to send a RPC test connection to the target
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server (-s) and force the NTLM hash to be sent in the process.
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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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CommandLine: '*/t*'
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SELECTION_11:
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CommandLine: '*ncacn_np*'
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SELECTION_2:
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Image: '*\rpcping.exe'
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SELECTION_3:
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CommandLine:
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- '*-s*'
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- '*/s*'
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SELECTION_4:
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CommandLine: '*-u*'
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SELECTION_5:
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CommandLine: '*NTLM*'
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SELECTION_6:
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CommandLine: '*/u*'
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SELECTION_7:
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CommandLine: '*NTLM*'
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SELECTION_8:
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CommandLine: '*-t*'
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SELECTION_9:
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CommandLine: '*ncacn_np*'
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condition: (SELECTION_1 and (SELECTION_2 and SELECTION_3) and ((SELECTION_4 and
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SELECTION_5) or (SELECTION_6 and SELECTION_7) or (SELECTION_8 and SELECTION_9)
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or (SELECTION_10 and SELECTION_11)))
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falsepositives:
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- Unlikely
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id: 93671f99-04eb-4ab4-a161-70d446a84003
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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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references:
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- https://lolbas-project.github.io/lolbas/Binaries/Rpcping/
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- https://twitter.com/vysecurity/status/974806438316072960
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- https://twitter.com/vysecurity/status/873181705024266241
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- https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/hh875578(v=ws.11)
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status: experimental
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tags:
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- attack.credential_access
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- attack.t1003
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ruletype: SIGMA
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