Anonymous IP Address

 Original Source: [Sigma source]
Title: Anonymous IP Address
Status: test
Description:Indicates sign-ins from an anonymous IP address, for example, using an anonymous browser or VPN.
References:
  -https://learn.microsoft.com/en-us/graph/api/resources/riskdetection?view=graph-rest-1.0
  -https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#anonymous-ip-address
Author: Gloria Lee, '@gleeiamglo'
Date: 2023-08-22
modified:None
Tags:
  • -'attack.t1528'
  • -'attack.credential-access'
Logsource:
  • product: azure
  • service: riskdetection
Detection:
  selection:
    riskEventType: 'anonymizedIPAddress'
  condition:selection
Falsepositives:
  -We recommend investigating the sessions flagged by this detection in the context of other sign-ins
Level: high