Impossible Travel

calendar Aug 12, 2024 · attack.t1078 attack.persistence attack.defense-evasion attack.privilege-escalation attack.initial-access  ·
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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.

Sigma rule (View on GitHub)

 1title: Impossible Travel
 2id: b2572bf9-e20a-4594-b528-40bde666525a
 3status: test
 4description: 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.
 5references:
 6    - https://learn.microsoft.com/en-us/entra/id-protection/concept-identity-protection-risks#impossible-travel
 7    - https://learn.microsoft.com/en-us/entra/architecture/security-operations-user-accounts#unusual-sign-ins
 8author: Mark Morowczynski '@markmorow', Gloria Lee, '@gleeiamglo'
 9date: 2023-09-03
10tags:
11    - attack.t1078
12    - attack.persistence
13    - attack.defense-evasion
14    - attack.privilege-escalation
15    - attack.initial-access
16logsource:
17    product: azure
18    service: riskdetection
19detection:
20    selection:
21        riskEventType: 'impossibleTravel'
22    condition: selection
23falsepositives:
24    - Connecting to a VPN, performing activity and then dropping and performing additional activity.
25level: high

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