Microsoft Teams Impersonation Identities by Fake Display Name

This query groups Microsoft Teams impersonation detections by the fake display name and sender domain to expose bulk campaigns behind rotating addresses.

Detection logic

Detection requirements

Platform: Identity Provider Linux macOS Office Suite SaaS Windows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
Log source product: microsoftthreatprotection
Log source service: cloudappevents

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Detection rules

Microsoft Teams Impersonation Identities by Fake Display Name

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules