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Change logs for security intelligence update version 1.423.270.0

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

3/7/2025 8:54:27 AM

Added threat detections

Name Severity
Behavior:Win32/SuspModuleLoad.G severe
HackTool:AndroidOS/Metasploit!rfn high
Trojan:Win32/ClickFix.DW!MTB severe
Trojan:Win32/CryptInject.CCJU!MTB severe
TrojanDownloader:Win64/Sliver!rfn severe

Updated threat detections

Name Severity
Adware:AndroidOS/Multiverze!rfn high
Adware:Win32/Multiverze!rfn high
Backdoor:Win32/Berbew!pz severe
Backdoor:Win32/Berbew!rfn severe
Backdoor:Win64/CobaltStrike.NP!dha severe
Behavior:Win32/SuspFileWrite.R severe
Behavior:Win32/SuspFileWrite.V severe
Behavior:Win32/SuspMMCLaunch.A severe
Exploit:MacOS/DirtyCow.D!MTB severe
Exploit:O97M/CVE-2017-11882!rfn severe
HackTool:PowerShell/PowerSploit.D high
HackTool:Win32/Agent high
HackTool:Win32/AutoKMS high
HackTool:Win32/Winring0 high
Joke:AndroidOS/Multiverze!rfn moderate
Ransom:Win32/StopCrypt.MGK!MTB severe
Ransom:Win32/StopCrypt.MQK!MTB severe
Ransom:Win32/StopCrypt.MZB!MTB severe
Ransom:Win32/StopCrypt.PG!MTB severe
Ransom:Win32/Wannaren!rfn severe
Trojan:AndroidOS/Mamont!rfn severe
Trojan:JS/CoinMiner.A!MTB severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MSIL/AgentTesla!rfn severe
Trojan:MSIL/AgentTesla.CYQ!MTB severe
Trojan:MSIL/AgentTesla.EQG!MTB severe
Trojan:MSIL/DcRAT severe
Trojan:MSIL/FormBook!rfn severe
Trojan:MSIL/Lazy!rfn severe
Trojan:MSIL/LummaStealer!rfn severe
Trojan:MSIL/QuasarRat.RPZ!MTB severe
Trojan:Script/Multiverze!rfn severe
Trojan:VBS/AgentTesla.RVF!MTB severe
Trojan:Win32/Acll!rfn severe
Trojan:Win32/AgentTesla!rfn severe
Trojan:Win32/Amadey!rfn severe
Trojan:Win32/Astaroth.psyX!MTB severe
Trojan:Win32/AutoitInject!rfn severe
Trojan:Win32/AutoitInject.GPAA!MTB severe
Trojan:Win32/AutoitInject.HNA!MTB severe
Trojan:Win32/Azorult.RM!MTB severe
Trojan:Win32/Azorult.SM!MSR severe
Trojan:Win32/Blihan!pz severe
Trojan:Win32/ClickFix.DQ!MTB severe
Trojan:Win32/ClickFix.DV!MTB severe
Trojan:Win32/Connapts severe
Trojan:Win32/CryptBot.NZ!MTB severe
Trojan:Win32/DCRat!rfn severe
Trojan:Win32/Eldorado!BV severe
Trojan:Win32/Elvdeng.C severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Fareit severe
Trojan:Win32/Fauppod.A severe
Trojan:Win32/Filecoder.RPR!MTB severe
Trojan:Win32/FlyAgent!pz severe
Trojan:Win32/Formbook!rfn severe
Trojan:Win32/Grandoreiro!rfn severe
Trojan:Win32/ICLoader!rfn severe
Trojan:Win32/Kryptik!rfn severe
Trojan:Win32/Leonem severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Lotok.RK!MTB severe
Trojan:Win32/LummaStealer severe
Trojan:Win32/LummaStealer!BV severe
Trojan:Win32/LummaStealer.OOZ!MTB severe
Trojan:Win32/MalLoader!rfn severe
Trojan:Win32/Multiverze!rfn severe
Trojan:Win32/Neoreblamy!MTB severe
Trojan:Win32/Racealer.AD!MTB severe
Trojan:Win32/Redline.AMMI!MTB severe
Trojan:Win32/RedLineStealer.PO!MTB severe
Trojan:Win32/RedLineStealer.SPBB!MTB severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/ShortcutFileInZipExec!BV severe
Trojan:Win32/SmokeLoader.O!MTB severe
Trojan:Win32/SmokeLoader.U!MTB severe
Trojan:Win32/SpyStealer.XK!MTB severe
Trojan:Win32/Stealc!rfn severe
Trojan:Win32/Stealc.GNT!MTB severe
Trojan:Win32/Strab.GPCX!MTB severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Tnega.BKOP!MTB severe
Trojan:Win32/Tonmye!rfn severe
Trojan:Win32/Upatre.AMN!MTB severe
Trojan:Win32/VBClone!rfn severe
Trojan:Win32/Vindor!pz severe
Trojan:Win32/Vundo severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win32/Zusy severe
Trojan:Win32/Zusy!rfn severe
Trojan:Win64/Barys!rfn severe
Trojan:Win64/Lazy.AMCW!MTB severe
Trojan:Win64/Malgent!MSR severe
Trojan:Win64/SpyLoader!rfn severe
Trojan:Win64/XmrigMiner!rfn severe
TrojanDownloader:Linux/ShWg.YB!MTB severe
TrojanDownloader:MSIL/Nanocore.PA1!MTB severe
TrojanDownloader:O97M/Obfuse!rfn severe
TrojanDownloader:Win32/Berbew!rfn severe
TrojanDownloader:Win32/Nemucod severe
TrojanDownloader:Win32/Upatre severe
TrojanDownloader:Win32/Wauchos.SIB!MTB severe
TrojanDropper:AndroidOS/SAgent.J!MTB severe
TrojanDropper:Win32/Dinwod!rfn severe
TrojanSpy:AndroidOS/Anubis!rfn severe
VirTool:MSIL/Aikaantivm!rfn severe
VirTool:MSIL/ResInject!MTB severe
VirTool:MSIL/StandIn!rfn severe
VirTool:Win32/DelfInject.gen!CE severe
VirTool:Win32/Kekeo.A!MTB severe
VirTool:Win32/VBInject severe
Worm:Win32/AutoRun!rfn severe
Worm:Win32/Copali.B severe
Worm:Win32/Mofksys.RND!MTB severe
Worm:Win32/Mydoom!pz severe
Worm:Win32/Mydoom.CX severe
Worm:Win32/Mydoom.DT severe