Mark Morowczynski
30 lines
993 B
YAML
30 lines
993 B
YAML
title: Multifactor Authentication Interrupted
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id: 5496ff55-42ec-4369-81cb-00f417029e25
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status: experimental
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description: Identifies user login with multifactor authentication failures, which might be an indication an attacker has the password for the account but can't pass the MFA challenge.
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references:
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- https://docs.microsoft.com/en-us/azure/active-directory/fundamentals/security-operations-privileged-accounts
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author: AlertIQ
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date: 2021/10/10
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modified: 2022/12/18
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tags:
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- attack.initial_access
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- attack.credential_access
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- attack.t1078.004
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- attack.t1110
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- attack.t1621
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logsource:
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product: azure
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service: signinlogs
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detection:
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selection_50074:
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ResultType: 50074
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ResultDescription|contains: 'Strong Auth required'
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selection_500121:
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ResultType: 500121
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ResultDescription|contains: 'Authentication failed during strong authentication request'
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condition: 1 of selection_*
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falsepositives:
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- Unknown
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level: medium
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