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MediumMicrosoft Sentinel analytics

Red Sift - Email with URL to previously unseen domain

Detects email forensics events containing one or more URLs whose domain has not been seen in the previous 14 days, which may indicate newly observed phishing infrastructure or suspicious delivery patterns.

Detection logic

Detection requirements

Platform
Identity ProviderLinuxmacOSOffice SuiteSaaSWindows

The rule states no platform. This is derived from the ATT&CK technique it maps to.

Log source product
redsiftpush
Log source service
redsiftemailforensics_cl

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