Impossible Travel

 Original Source: [Sigma source]
Title: Impossible Travel
Status: test
Description:Identifies user activities originating from geographically distant locations within a time period shorter than the time it takes to travel from the first location to the second.
References:
  -https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#impossible-travel
  -https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
Author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
Date: 2023-09-03
modified:None
Tags:
  • -'attack.stealth'
  • -'attack.t1078'
  • -'attack.persistence'
  • -'attack.privilege-escalation'
  • -'attack.initial-access'
Logsource:
  • product: azure
  • service: riskdetection
Detection:
  selection:
    riskEventType: 'impossibleTravel'
  condition:selection
Falsepositives:
  -Connecting to a VPN, performing activity and then dropping and performing additional activity.
Level: high