Sigma Rule Library

Failed Authentications From Countries You Do Not Operate Out Of

Detect failed authentications from countries you do not operate out of.

View on GitHubOpen raw file

Detection logic

filter

resultType: 0
location|contains|expand: "%KNOWN_LOCATION%"

Condition

not filter

Raw YAML

title: Failed Authentications From Countries You Do Not Operate Out Of
id: 28870ae4-6a13-4616-bd1a-235a7fad7458
status: test
description: Detect failed authentications from countries you do not operate out of.
references:
    - https://learn.microsoft.com/en-gb/entra/architecture/security-operations-user-accounts
author: MikeDuddington, '@dudders1'
date: 2022-07-28
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.credential-access
    - attack.stealth
    - attack.t1078.004
    - attack.t1110
logsource:
    product: azure
    service: signinlogs
detection:
    filter:
        resultType: 0
        location|contains|expand: '%KNOWN_LOCATION%'
    condition: not filter
falsepositives:
    - Sometime connection to/from VPN, tunneling or cloud services can generate fps.
level: low

False positives

  • Sometime connection to/from VPN, tunneling or cloud services can generate fps.

References

Similar rules