Detection Deep Dive

The first entry in the Detection Deep Dive series: mapping encoded PowerShell execution to detection logic in Microsoft Defender, tuning out the false positives, and knowing what the detection can’t see.

An AI-powered PhaaS campaign leaned on legit-vendor redirects and device-code phishing — but spoofing left a fingerprint. One KQL query plus a 5-minute MDE automation loop neutralized over 1,200 malicious emails in 48 hours.