2021-06-03 21:51:47 +00:00
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title: Multiple Users Attempting To Authenticate Using Explicit Credentials
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id: 196a29c2-e378-48d8-ba07-8a9e61f7fab9
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description: Detects a source user failing to authenticate with multiple users using explicit credentials on a host.
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author: Mauricio Velazco
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2021-06-03 22:26:07 +00:00
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date: 2021/06/01
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2021-06-04 03:38:10 +00:00
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references:
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- https://docs.splunk.com/Documentation/ESSOC/3.22.0/stories/UseCase#Active_directory_password_spraying
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2021-06-03 21:51:47 +00:00
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tags:
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- attack.t1110.003
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- attack.initial_access
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- attack.privilege_escalation
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logsource:
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product: windows
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service: security
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detection:
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selection1:
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EventID: '4648'
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timeframe: 24h
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condition:
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- selection1 | count(Account_Name) by ComputerName > 10
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falsepositives:
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- Terminal servers
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- Jump servers
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- Other multiuser systems like Citrix server farms
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- Workstations with frequently changing users
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level: medium
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