Change logs for security intelligence update version 1.421.1987.0

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

2/19/2025 2:26:16 PM

Added threat detections

Name	Severity
HackTool:MacOS/ConScan.B!MTB	high
Trojan:JS/Remcos.LBH!MTB	severe
Trojan:MacOS/Sparkrat.B!MTB	severe
Trojan:PowerShell/Boxter.NFA!MTB	severe
Trojan:Win32/GuLoader.QSN!MTB	severe
Trojan:Win32/Zenapak!rfn	severe
Trojan:Win64/Zusy.BR!MTB	severe

Updated threat detections

Name	Severity
Adware:Win32/Multiverze!rfn	high
Backdoor:Win32/Berbew!pz	severe
Backdoor:Win32/Hupigon.DG	severe
Backdoor:Win32/Hupigon.gen!B	severe
Backdoor:Win32/Padodor.SK!MTB	severe
Backdoor:Win32/Popwin.G	severe
Backdoor:Win32/Zegost.B	severe
BrowserModifier:Win32/Diplugem	high
Dialer:Win32/Riprova	severe
Exploit:Win32/CVE-2020-0796!MTB	severe
HackTool:Win32/AutoKMS	high
HackTool:Win32/crack	high
HackTool:Win32/PasswordFox	high
HackTool:Win32/RemoteAdmin	high
Program:AndroidOS/Multiverze	high
PWS:Win32/Fareit	severe
PWS:Win32/Fareit.gen!C	severe
PWS:Win32/Zbot.AJB	severe
PWS:Win32/Zuten!rfn	severe
Rogue:Win32/PrivacyCenter	severe
Rogue:Win32/Winwebsec	severe
Trojan:AndroidOS/Smsspy	severe
Trojan:BAT/Malgent!MSR	severe
Trojan:JS/Escriject.A	severe
Trojan:Linux/Multiverze!rfn	severe
Trojan:MSIL/Agentdoc!pz	severe
Trojan:MSIL/AgentTesla.JPX!MTB	severe
Trojan:MSIL/AgentTesla.RDSD!MTB	severe
Trojan:MSIL/AgentTesla.RSH!MTB	severe
Trojan:MSIL/AgentTesla.SKL!MTB	severe
Trojan:MSIL/Bobik!rfn	severe
Trojan:MSIL/ClipBanker!rfn	severe
Trojan:MSIL/Disabler!rfn	severe
Trojan:MSIL/FormBook!rfn	severe
Trojan:MSIL/Formbook.MAAV!MTB	severe
Trojan:MSIL/FormBook.RPZ!MTB	severe
Trojan:MSIL/Heracles.SPQE!MTB	severe
Trojan:MSIL/LimeLogger.A!MTB	severe
Trojan:MSIL/RedLineStealer.KAI!MTB	severe
Trojan:MSIL/SnakeLogger!rfn	severe
Trojan:Win32/Acll!rfn	severe
Trojan:Win32/AutoitInject.HNA!MTB	severe
Trojan:Win32/Azorult.RF!MTB	severe
Trojan:Win32/Berbew	severe
Trojan:Win32/Bumat!rts	high
Trojan:Win32/Cerber!pz	severe
Trojan:Win32/Cerber!rfn	severe
Trojan:Win32/CobaltStrike.LKAK!MTB	severe
Trojan:Win32/CoreWarrior	severe
Trojan:Win32/CoreWarrior!rfn	severe
Trojan:Win32/CoreWarrior.DA!MTB	severe
Trojan:Win32/CryptInject!rfn	severe
Trojan:Win32/Danginex	severe
Trojan:Win32/DSSDetection	severe
Trojan:Win32/Dynamer!dtc	severe
Trojan:Win32/Dynamer!rfn	severe
Trojan:Win32/Etset!rfn	severe
Trojan:Win32/Fareit!rfn	severe
Trojan:Win32/Formbook!rfn	severe
Trojan:Win32/gen8!rfn	severe
Trojan:Win32/GhostRatCrypt.GA!MTB	severe
Trojan:Win32/Grandoreiro.psyN!MTB	severe
Trojan:Win32/Guloader.CW!MTB	severe
Trojan:Win32/GuLoader.GKP!MTB	severe
Trojan:Win32/GuLoader.RSO!MTB	severe
Trojan:Win32/GuLoader.RSQ!MTB	severe
Trojan:Win32/Guloader.VT!MTB	severe
Trojan:Win32/IcedId!rfn	severe
Trojan:Win32/Keylogger.AMBE!MTB	severe
Trojan:Win32/Killav!pz	severe
Trojan:Win32/Krucky!rfn	severe
Trojan:Win32/Kryptik!rfn	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/Lodap!rts	high
Trojan:Win32/LummaStealer!rfn	severe
Trojan:Win32/Malagent	severe
Trojan:Win32/Malex!rfn	severe
Trojan:Win32/Malgent	severe
Trojan:Win32/MalLoader!rfn	severe
Trojan:Win32/Mediyes.C	severe
Trojan:Win32/Meredrop	severe
Trojan:Win32/Multiverze!rfn	severe
Trojan:Win32/Neoreblamy.AD!MTB	severe
Trojan:Win32/Ninunarch.N	severe
Trojan:Win32/NSISInject.SKJ!MTB	severe
Trojan:Win32/PlugX!pz	severe
Trojan:Win32/plugx.psyC!MTB	severe
Trojan:Win32/Provis!rts	high
Trojan:Win32/Qukart!rfn	severe
Trojan:Win32/Raccrypt.GL!MTB	severe
Trojan:Win32/Ramsay.DA!MTB	severe
Trojan:Win32/Recordbreaker.RPY!MTB	severe
Trojan:Win32/Remcos.NA!MTB	severe
Trojan:Win32/Rimecud!pz	severe
Trojan:Win32/RisePro.RP!MTB	severe
Trojan:Win32/RiseProStealer.AG!MTB	severe
Trojan:Win32/Seheq!rfn	severe
Trojan:Win32/Sisron	severe
Trojan:Win32/Skeeyah!rfn	severe
Trojan:Win32/Smokeloader.GXZ!MTB	severe
Trojan:Win32/SmokeLoader.P!MTB	severe
Trojan:Win32/Startpage	severe
Trojan:Win32/Storark.A	severe
Trojan:Win32/StormAttack.NAS!MTB	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/Tiggre!rfn	severe
Trojan:Win32/Trickbot	severe
Trojan:Win32/Upatre.MC!MTB	severe
Trojan:Win32/VbInject!MTB	severe
Trojan:Win32/Vindor!pz	severe
Trojan:Win32/Wantvi.I	severe
Trojan:Win32/WinLNK	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win32/Znyonm!rfn	severe
Trojan:Win64/BumbleBee.EM!MTB	severe
Trojan:Win64/CobaltStrike!MTB	severe
Trojan:Win64/KDMapper.RDA!MTB	severe
Trojan:Win64/Lazy!MTB	severe
Trojan:Win64/Lazy.AME!MTB	severe
Trojan:Win64/Malgent!MTB	severe
Trojan:Win64/Turtleloader!rfn	severe
Trojan:Win64/XmrigMiner!rfn	severe
TrojanDownloader:JS/Nemucod.A	severe
TrojanDownloader:O97M/Emotet.CSK!MTB	severe
TrojanDownloader:O97M/Obfuse.VJM!MTB	severe
TrojanDownloader:Win32/Banload.SG	severe
TrojanDownloader:Win32/Berbew	severe
TrojanDownloader:Win32/Dadobra	severe
TrojanDownloader:Win32/Nemucod	severe
TrojanDownloader:Win32/Netins	severe
TrojanDownloader:Win32/Plingky	severe
TrojanDownloader:Win32/Plingky.A	severe
TrojanDropper:HTML/Obfuse!MTB	severe
TrojanDropper:Win32/Bamital	severe
TrojanDropper:Win32/Muldrop	severe
TrojanDropper:Win32/Pykspa.A	severe
TrojanDropper:Win32/VB	severe
VirTool:JS/Obfuscator	severe
VirTool:MSIL/Assasin.A!MTB	severe
VirTool:MSIL/CryptInject	severe
VirTool:MSIL/Masky!rfn	severe
VirTool:Win32/Obfuscator.G	severe
VirTool:Win32/Pucrpt!rfn	severe
VirTool:Win32/Vbinder	severe
VirTool:Win32/VBInject	severe
VirTool:Win32/VBInject!rfn	severe
VirTool:Win32/Ymacco.AA62	severe
Worm:Win32/AutoRun.XXY!bit	severe
Worm:Win32/FakeFolder!rfn	severe