Logon from a Risky IP Address

Detects when a Microsoft Cloud App Security reported when a user signs into your sanctioned apps from a risky IP address.

Sigma rule (View on GitHub)

 1title: Logon from a Risky IP Address
 2id: c191e2fa-f9d6-4ccf-82af-4f2aba08359f
 3status: test
 4description: Detects when a Microsoft Cloud App Security reported when a user signs into your sanctioned apps from a risky IP address.
 5references:
 6    - https://learn.microsoft.com/en-us/defender-cloud-apps/anomaly-detection-policy
 7    - https://learn.microsoft.com/en-us/defender-cloud-apps/policy-template-reference
 8author: Austin Songer @austinsonger
 9date: 2021/08/23
10modified: 2022/10/09
11tags:
12    - attack.initial_access
13    - attack.t1078
14logsource:
15    service: threat_management
16    product: m365
17detection:
18    selection:
19        eventSource: SecurityComplianceCenter
20        eventName: 'Log on from a risky IP address'
21        status: success
22    condition: selection
23falsepositives:
24    - Unknown
25level: medium

References

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