Detection rules › Sigma

Microsoft 365 - Impossible Travel Activity

Status
test
Severity
medium
Log source
product m365, service threat_management
Author
Austin Songer @austinsonger
Source
github.com/SigmaHQ/sigma

Detects when a Microsoft Cloud App Security reported a risky sign-in attempt due to a login associated with an impossible travel.

MITRE ATT&CK coverage

TacticTechniques
Initial Access
Persistence
Privilege Escalation
Stealth

Telemetry coverage

PlatformRecord / event type
Microsoft 365Impossible travel activity

Rule body

title: Microsoft 365 - Impossible Travel Activity
id: d7eab125-5f94-43df-8710-795b80fa1189
status: test
description: Detects when a Microsoft Cloud App Security reported a risky sign-in attempt due to a login associated with an impossible travel.
references:
    - https://learn.microsoft.com/en-us/defender-cloud-apps/anomaly-detection-policy
    - https://learn.microsoft.com/en-us/defender-cloud-apps/policy-template-reference
author: Austin Songer @austinsonger
date: 2020-07-06
modified: 2021-11-27
tags:
    - attack.privilege-escalation
    - attack.persistence
    - attack.initial-access
    - attack.stealth
    - attack.t1078
logsource:
    service: threat_management
    product: m365
detection:
    selection:
        eventSource: SecurityComplianceCenter
        eventName: 'Impossible travel activity'
        status: success
    condition: selection
falsepositives:
    - Unknown
level: medium

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    eventSource: SecurityComplianceCenter
    eventName: 'Impossible travel activity'
    status: success

Indicators

These rows show field, operator, and value matches.