SigmaHQ/rules/cloud/m365/microsoft365_user_restricted_from_sending_email.yml

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855 B
YAML

title: Microsoft 365 - User Restricted from Sending Email
id: ff246f56-7f24-402a-baca-b86540e3925c
status: experimental
description: Detects when a Security Compliance Center reported a user who exceeded sending limits of the service policies and because of this has been restricted from sending email.
author: austinsonger
date: 2021/08/19
references:
- https://docs.microsoft.com/en-us/cloud-app-security/anomaly-detection-policy
- https://docs.microsoft.com/en-us/cloud-app-security/policy-template-reference
logsource:
category: ThreatManagement
service: Microsoft365
detection:
selection:
eventSource: SecurityComplianceCenter
eventName: "User restricted from sending email"
status: success
condition: selection
falsepositives:
-
level: medium
tags:
- attack.initial_access
- attack.t1199