Suspicious Data Exfiltration to Unsanctioned Apps (via threat_management)

title: Suspicious Data Exfiltration to Unsanctioned Apps (via threat_management)
id: 4d050ae9-ca68-598f-bf63-9a8235549466
status: stable
description: This rule detects when a Microsoft Cloud App Security reported when a user or IP address uses an app that is not sanctioned to perform a behavior that resembles an attempt to exfiltrate information from your organization.
references:
    - https://attack.mitre.org/techniques/T1537/
    - 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: Huntrule Team
date: 2026-07-09
tags:
    - attack.exfiltration
    - attack.t1537
logsource:
    service: threat_management
    product: m365
detection:
    selection:
        eventSource: SecurityComplianceCenter
        eventName: 'Data exfiltration to unsanctioned apps'
        status: success
    condition: selection
falsepositives:
    - Unknown
level: medium