Skip to main content
Skip to main content

Change logs for security intelligence update version 1.443.680.0

This page lists newly added and updated threat detections included in security intelligence updates for Microsoft Defender Antivirus and other Microsoft antimalware. If you don’t find the latest security intelligence update version in the selector below, please refresh this page or let us know us know through the feedback smiley.

Looking for the latest update? Download the latest update

Released on

1/15/2026 2:00:01 AM

Added threat detections

Name Severity
Behavior:Win32/Mamadut.HI severe
Behavior:Win64/Stealc.SA severe
Trojan:HTML/Codephish.DA!MTB severe
Trojan:PowerShell/FakeMas.DC!MTB severe
Trojan:PowerShell/SamDumpz.B!MTB severe
Trojan:Python/CastleRat.DA!MTB severe
Trojan:Win32/Amadey.ZZ!sms severe
Trojan:Win64/Amadey.ZZ!sms severe
Trojan:Win64/Stealc.ZZ!sms severe
Trojan:Win64/SubtleSolution.A!dha severe
Trojan:Win64/SubtleSolution.B!dha severe
Virus:ALisp/Bursted.DA!MTB severe

Updated threat detections

Name Severity
Behavior:Win32/Amadey.Z severe
Behavior:Win32/ReactJSExploit.SA severe
Behavior:Win32/SMSGen severe
Behavior:Win64/Amadey.Z severe
Trojan:PowerShell/Boxter.DB!MTB severe
Trojan:Win32/ClickFix.AB severe