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Change logs for security intelligence update version 1.427.445.0

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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Released on

4/25/2025 12:09:38 PM

Added threat detections

Name Severity
PWS:Win64/Agent!AMTB severe
Trojan:BAT/LummaStealer!MTB severe
Trojan:HTML/FakeLogin.PBP!MTB severe
Trojan:HTML/Scam.BAI!MTB severe
Trojan:Linux/AutoColor.A!MTB severe
Trojan:MSIL/Quasar.AUQR!MTB severe
Trojan:VBS/Obfuse.GPX!MSR severe
Trojan:Win64/LummaC.AQ!MTB severe

Updated threat detections

Name Severity
Backdoor:Linux/Tsunami!rfn severe
Backdoor:MSIL/Bladabindi!rfn severe
Backdoor:MSIL/XWorm!rfn severe
Backdoor:Win32/Berbew!rfn severe
Backdoor:Win32/Padodor!rfn severe
HackTool:Win32/AutoKMS!rfn high
HackTool:Win32/KeyGen!AMTB high
Ransom:Win32/Wannaren!rfn severe
Trojan:HTML/FakeCaptcha!rfn severe
Trojan:JS/AgentTesla.RVI!MTB severe
Trojan:MSIL/AgentTesla!rfn severe
Trojan:MSIL/AsyncRAT!rfn severe
Trojan:MSIL/Dapato!rfn severe
Trojan:MSIL/Dcstl!rfn severe
Trojan:MSIL/FormBook!rfn severe
Trojan:MSIL/Jalapeno!rfn severe
Trojan:MSIL/LummaC severe
Trojan:MSIL/LummaC!rfn severe
Trojan:MSIL/MassLogger!rfn severe
Trojan:MSIL/PureLogStealer!rfn severe
Trojan:MSIL/RedLineStealer.EM!MTB severe
Trojan:MSIL/Small!MTB severe
Trojan:MSIL/Snakekeylogger!rfn severe
Trojan:MSIL/Taskun!rfn severe
Trojan:PowerShell/Bynoco.SS!MTB severe
Trojan:Python/Multiverze severe
Trojan:Python/Multiverze!rfn severe
Trojan:Win32/Agent!rfn severe
Trojan:Win32/AgentTesla!rfn severe
Trojan:Win32/Amadey!rfn severe
Trojan:Win32/AutoitInject!rfn severe
Trojan:Win32/Berbew!rfn severe
Trojan:Win32/Bluteal!rfn severe
Trojan:Win32/Ceevee!pz severe
Trojan:Win32/Cerber!rfn severe
Trojan:Win32/CobaltStrike!rfn severe
Trojan:Win32/Convagent!MTB severe
Trojan:Win32/CoreWarrior!rfn severe
Trojan:Win32/Coroxy!rfn severe
Trojan:Win32/CryptInject!rfn severe
Trojan:Win32/DelfInject!MTB severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Fareit!rfn severe
Trojan:Win32/Fareit.VB!MTB severe
Trojan:Win32/Floxif!rfn severe
Trojan:Win32/Grandoreiro!rfn severe
Trojan:Win32/Grandoreiro.psyM!MTB severe
Trojan:Win32/GuLoader.RAF!MTB severe
Trojan:Win32/ICLoader!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Kryptik!rfn severe
Trojan:Win32/Lazy!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Lummac!rfn severe
Trojan:Win32/LummaStealer!rfn severe
Trojan:Win32/Malex!rfn severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/Malgent!MTB severe
Trojan:Win32/Mickey!rfn severe
Trojan:Win32/Neoreblamy!rfn severe
Trojan:Win32/Qukart!rfn severe
Trojan:Win32/Ranumbot!rfn severe
Trojan:Win32/Remcos!rfn severe
Trojan:Win32/Sakurel!rfn severe
Trojan:Win32/SmokeLoader!rfn severe
Trojan:Win32/StealC!rfn severe
Trojan:Win32/Stealer!rfn severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Swisyn!MTB severe
Trojan:Win32/VBClone!rfn severe
Trojan:Win32/Vilsel!rfn severe
Trojan:Win32/Ymacco severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win64/DisguisedXMRigMiner severe
Trojan:Win64/DisguisedXMRigMiner!rfn severe
Trojan:Win64/Donut!rfn severe
Trojan:Win64/Filecoder!MTB severe
Trojan:Win64/GravityRat!rfn severe
Trojan:Win64/Lazy!rfn severe
Trojan:Win64/Malgent!MSR severe
Trojan:Win64/Metasploit.CRTD!MTB severe
Trojan:Win64/Stealer!rfn severe
Trojan:Win64/Tedy!rfn severe
TrojanDownloader:JS/Nemucod!rfn severe
TrojanDownloader:JS/Nemucod.FJ severe
TrojanDownloader:JS/Nemucod.PA severe
TrojanDownloader:JS/Swabfex.H severe
TrojanDownloader:Win32/Berbew severe
TrojanDownloader:Win32/Berbew!rfn severe
TrojanDownloader:Win32/Snojan!rfn severe
TrojanDropper:Win32/Dinwod!rfn severe
TrojanSpy:AndroidOS/SMSThief.AT!MTB severe
VirTool:Win32/VMProtect severe
Worm:Win32/AutoRun!rfn severe
Worm:Win32/Ganelp!rfn severe