Top Internal Users Auto-forwarding Email Externally (Mailbox Rule and SMTP)

This query lists the top internal users automatically forwarding email to external addresses, by forwarding type, using the EmailEvents table.

Detection logic

Detection requirements

Platform: Linux macOS Network Devices Office Suite Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source product: microsoftthreatprotection
Log source service: emailevents

Detections can measure how the public catalogue is used — which detections people look for, and which pages bring them here. It sets a cookie that recognises this browser for 180 days. It is never linked to an account and never follows you to other sites. Privacy notice

Detection rules

Top Internal Users Auto-forwarding Email Externally (Mailbox Rule and SMTP)

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules