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Malicious IP Address Sign-In Failure Rate

Indicates sign-in from a malicious IP address based on high failure rates.

MITRE ATT&CK

command-and-control

Detection Query

selection:
  riskEventType: maliciousIPAddress
condition: selection

Author

Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'

Created

2023-09-07

Data Sources

azureriskdetection

Platforms

azure

References

Tags

attack.t1090attack.command-and-control

Raw Content

title: Malicious IP Address Sign-In Failure Rate
id: a3f55ebd-0c01-4ed6-adc0-8fb76d8cd3cd
status: test
description: Indicates sign-in from a malicious IP address based on high failure rates.
references:
    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#malicious-ip-address
    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
date: 2023-09-07
tags:
    - attack.t1090
    - attack.command-and-control
logsource:
    product: azure
    service: riskdetection
detection:
    selection:
        riskEventType: 'maliciousIPAddress'
    condition: selection
falsepositives:
    - We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
level: high