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19 lines
562 B
YAML
19 lines
562 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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logsource:
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product: linux
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service: auth
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detection:
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selection:
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pam_message: "authentication failure"
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pam_user: not null
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pam_rhost: not null
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timeframe: 24h
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condition: selection | count(pam_user) by pam_rhost > 3
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falsepositives:
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- Terminal servers
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- Jump servers
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- Workstations with frequently changing users
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level: medium
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