Thomas Patzke
20 lines
654 B
YAML
20 lines
654 B
YAML
title: Multiple Failed Logins with Different Accounts from Single Source System
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description: Detects suspicious failed logins with different user accounts from a single source system
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detection:
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selection:
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- EventLog: Security
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EventID:
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- 529
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- 4625
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- 4776
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UserName: not null
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SourceWorkstation: not null
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timeframe: last 24h
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condition: selection | count(UserName) by SourceWorkstation > 3
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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: 40
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