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27 lines
757 B
YAML
27 lines
757 B
YAML
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title: Suspicious Rejected SMB Guest Logon From IP
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id: 71886b70-d7b4-4dbf-acce-87d2ca135262
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description:
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author: Florian Roth, KevTheHermit, fuzzyf10w
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status: experimental
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level: medium
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references:
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- https://twitter.com/KevTheHermit/status/1410203844064301056
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- https://github.com/hhlxf/PrintNightmare
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- https://github.com/afwu/PrintNightmare
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date: 2021/06/30
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logsource:
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product: windows
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service: smbclient-security
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detection:
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selection:
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EventID: 31017
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Description|contains: 'Rejected an insecure guest logon'
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UserName: ''
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ServerName|startswith: '\1'
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condition: selection
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fields:
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- Computer
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- User
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falsepositives:
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- Account fallback reasons (after failed login with specific account)
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