Malicious IP Address Sign-In Suspicious

 Original Source: [Sigma source]
Title: Malicious IP Address Sign-In Suspicious
Status: test
Description:Indicates sign-in from a malicious IP address known to be malicious at time of sign-in.
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
modified:None
Tags:
  • -'attack.t1090'
  • -'attack.command-and-control'
Logsource:
  • product: azure
  • service: riskdetection
Detection:
  selection:
    riskEventType: 'suspiciousIPAddress'
  condition:selection
Falsepositives:
  -We recommend investigating the sessions flagged by this detection in the context of other sign-ins from the user.
Level: high