Change logs for security intelligence update version 1.427.753.0

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.

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Security intelligence update version

Released on

5/12/2025 12:27:04 PM

Added threat detections

Name	Severity
Trojan:MSIL/MassLogger.AMTA!MTB	severe
Trojan:Win32/OffLoader.ANTA!MTB	severe

Updated threat detections

Name	Severity
Backdoor:Win32/Berbew!pz	severe
Backdoor:Win32/Berbew!rfn	severe
Behavior:Linux/CodeInjection.GT20	severe
Behavior:Linux/CodeInjection.GT21	severe
HackTool:Python/Impacket.BC	high
HackTool:Python/Impacket.BD	high
HackTool:Win32/crack	high
HackTool:Win32/KMSActivator!MTB	high
HackTool:Win64/Crack!MTB	high
Tool:AndroidOS/Multiverze	moderate
Trojan:AndroidOS/AVerseFalc	severe
Trojan:AndroidOS/Smsthief.P	severe
Trojan:HTML/Phish.RE!MTB	severe
Trojan:JS/Obfuse!rfn	severe
Trojan:Linux/CoinMiner!MTB	severe
Trojan:MacOS/Amos.DT!MTB	severe
Trojan:MSIL/AgentTesla!rfn	severe
Trojan:MSIL/Formbook.AMAB!MTB	severe
Trojan:MSIL/Heracles!MTB	severe
Trojan:MSIL/Lazy!MTB	severe
Trojan:MSIL/Remcos!rfn	severe
Trojan:MSIL/Tiny!MTB	severe
Trojan:MSIL/Xworm!MTB	severe
Trojan:O97M/Obfuse.BF	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/AutoitInject!rfn	severe
Trojan:Win32/Banload!rfn	severe
Trojan:Win32/Ceevee	severe
Trojan:Win32/CobaltStrike!rfn	severe
Trojan:Win32/CoreWarrior!rfn	severe
Trojan:Win32/Dapato!MTB	severe
Trojan:Win32/DBatLoader!rfn	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Etset!rfn	severe
Trojan:Win32/Fareit!rfn	severe
Trojan:Win32/Flystudio!MTB	severe
Trojan:Win32/Fragtor!MTB	severe
Trojan:Win32/GuLoader!rfn	severe
Trojan:Win32/ICLoader!rfn	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/KillMBR!rfn	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/LummaStealer!rfn	severe
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/StealC!rfn	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/Swisyn!rfn	severe
Trojan:Win32/Trickler!rfn	severe
Trojan:Win32/VBClone!rfn	severe
Trojan:Win32/Vidar!rfn	severe
Trojan:Win32/Vindor!pz	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win32/Zmem	severe
Trojan:Win32/Zusy!rfn	severe
Trojan:Win64/CobaltStrike!rfn	severe
Trojan:Win64/CoinMiner!rfn	severe
Trojan:Win64/Lazy!MTB	severe
Trojan:Win64/Lazy!rfn	severe
Trojan:Win64/LummaStealer!MTB	severe
Trojan:Win64/LummaStealer!rfn	severe
Trojan:Win64/Redline!rfn	severe
Trojan:Win64/XmrigMiner!rfn	severe
TrojanClicker:Win32/Doplik.U	severe
TrojanDropper:Win32/Dinwod!rfn	severe
TrojanDropper:Win32/Pykspa.A	severe
TrojanDropper:Win32/Systex!rfn	severe
Worm:Win32/AutoRun!rfn	severe
Worm:Win32/Gamarue!rfn	severe
Worm:Win32/Ganelp!rfn	severe
Worm:Win32/Netsky.P@mm	severe