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Change logs for security intelligence update version 1.459.374.0

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

9/24/2026 8:35:28 AM

Added threat detections

Name Severity
Backdoor:MSIL/XWorm!atmn severe
Behavior:Win32/AppDomainMgrUntrustedAssembly.AM severe
Behavior:Win32/TamperingPlatformReset.A severe
BrowserModifier:MSIL/MediaArena!atmn high
Exploit:Win64/UndefendV2.DA!MTB severe
Trojan:Linux/MemTenSteal.DA!MTB severe
Trojan:Linux/Stealer.SA severe
Trojan:MacOS/MemTenSteal.DA!MTB severe
Trojan:MacOS/Stealer.SA severe
Trojan:NPM/MemTenSteal.DA!MTB severe
Trojan:NPM/MemTenSteal.DB!MTB severe
Trojan:NPM/MemTenSteal.DC!MTB severe
Trojan:NPM/PolinRider.DG!MTB severe
Trojan:NPM/PolinRider.DH!MTB severe
Trojan:PDF/Phish.BP!atmn severe
Trojan:PowerShell/Boxter.PO!MTB severe
Trojan:PowerShell/Boxter.PX!MTB severe
Trojan:Win32/BlackMoon!atmn severe
Trojan:Win32/Draftor!rfn severe
Trojan:Win32/Farfli!atmn severe
Trojan:Win32/Grandoreiro!atmn severe
Trojan:Win32/SuspLoadExec.NF!MTB severe
Trojan:Win64/CLOSEDQUORUM.DA!MTB severe
Trojan:Win64/MemTenSteal.DA!MTB severe
Trojan:Win64/Stealer.SA severe
Virus:Win32/Grenam.AB severe
Virus:Win32/Grenam.AC severe
Virus:Win32/Sality.AA severe

Updated threat detections

Name Severity
Adware:Python/Multiverze!rfn high
Backdoor:Linux/Multiverze!rfn severe
Backdoor:MSIL/Bladabindi!rfn severe
Backdoor:MSIL/XWormRAT!rfn severe
Backdoor:Win32/Farfli!atmn severe
Backdoor:Win64/PortStarter!rfn severe
Behavior:Win32/MSFInternalToolsAbuse.A severe
Behavior:Win32/Rapuncelstealer.Z!MTB severe
Behavior:Win32/VidarStealer.A!MTB severe
DDoS:Linux/Flooder!rfn severe
DoS:Win32/WprBlightre!rfn severe
Exploit:Python/CVE-2020-13151!AMTB severe
Exploit:Ruby/CVE-2009-2990!AMTB severe
Exploit:Ruby/JSShell.G!MSR severe
HackTool:AndroidOS/Mesploit!rfn high
HackTool:Linux/Multiverze!rfn high
HackTool:PHP/Phish!AMTB high
HackTool:PowerShell/PowerView.A high
HackTool:Python/Impacket high
HackTool:Python/Impacket!AMTB high
HackTool:Python/Impacket!MSR high
HackTool:Python/Impacket.AL high
HackTool:Python/Impacket.Q!MSR high
HackTool:Python/PWDump!MSR high
HackTool:Python/RemoteShell!MSR high
HackTool:Win32/Activator high
HackTool:Win32/Crack!MTB high
HackTool:Win32/Keygen high
HackTool:Win32/Malgent!MSR high
HackTool:Win32/Patcher high
HackTool:Win64/CobaltStrike!rfn high
HackTool:Win64/Mimikatz!rfn high
Program:MacOS/Multiverze!rfn high
PWS:Win32/Fareit!rfn severe
Ransom:Win32/Basta!rfn severe
Ransom:Win32/Cobra severe
Ransom:Win32/Embargo!rfn severe
Ransom:Win32/Filecoder!rfn severe
Ransom:Win32/LockBit.PA!MTB severe
Ransom:Win32/Qilin!rfn severe
Ransom:Win64/Azov.psyA!MTB severe
Ransom:Win64/BianLian!rfn severe
Ransom:Win64/BlackByte!rfn severe
Ransom:Win64/Magniber!rfn severe
Spyware:AndroidOS/Multiverze!rfn high
SupportScam:Win32/Screcwon!AMTB severe
Tool:AndroidOS/Multiverze!rfn moderate
Trojan:AndroidOS/Autopay!rfn severe
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:AndroidOS/Clicker!rfn severe
Trojan:AndroidOS/FakeApp!rfn severe
Trojan:AndroidOS/LuckyPatcher!rfn severe
Trojan:AndroidOS/Multiverze!rfn severe
Trojan:AndroidOS/Spynote!rfn severe
Trojan:BAT/LNK_DarkGate!rfn severe
Trojan:BAT/Qakbot!rfn severe
Trojan:HTML/CryptoExtortBTC severe
Trojan:HTML/CryptoExtortBTC.A severe
Trojan:HTML/CryptoExtortETH severe
Trojan:HTML/CryptoExtortETH.A severe
Trojan:HTML/CryptoExtortETH.C severe
Trojan:HTML/CryptoExtortETH.E severe
Trojan:HTML/CryptoExtortETH.I severe
Trojan:HTML/CryptoExtortETH.J severe
Trojan:HTML/CryptoRansomBTC severe
Trojan:HTML/CryptoRansomBTC.A severe
Trojan:HTML/CryptoRansomETH severe
Trojan:HTML/CryptoRansomETH.A severe
Trojan:HTML/CryptoRansomETH.C severe
Trojan:HTML/CryptoRansomETH.E severe
Trojan:HTML/CryptoRansomETH.I severe
Trojan:HTML/CryptoRansomETH.J severe
Trojan:HTML/CryptoStealADA severe
Trojan:HTML/CryptoStealBNB severe
Trojan:HTML/CryptoStealBTC severe
Trojan:HTML/CryptoStealBTC.A severe
Trojan:HTML/CryptoStealDOGE severe
Trojan:HTML/CryptoStealETH severe
Trojan:HTML/CryptoStealETH.A severe
Trojan:HTML/CryptoStealETH.C severe
Trojan:HTML/CryptoStealETH.E severe
Trojan:HTML/CryptoStealETH.I severe
Trojan:HTML/CryptoStealETH.J severe
Trojan:HTML/CryptoStealSHIB severe
Trojan:HTML/Qakbot!rfn severe
Trojan:Java/Jibem.A severe
Trojan:Java/Jibem.B severe
Trojan:Java/Jrat.J severe
Trojan:Java/SAgnt!MSR severe
Trojan:Java/Tisifi.D severe
Trojan:JS/ChatGPTStealer.GVA!MTB severe
Trojan:JS/FormBook!rfn severe
Trojan:JS/Obfuse.PRS!MTB severe
Trojan:JS/QakbotLNK!rfn severe
Trojan:JS/Redirector!MTB severe
Trojan:JS/Tnega!rfn severe
Trojan:Linux/CoinMiner!rfn severe
Trojan:Linux/CoinMiner.C12 severe
Trojan:Linux/Ladvix!rfn severe
Trojan:Linux/Meterp.Gen severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MacOS/CoinMiner!rfn severe
Trojan:MacOS/Multiverze!rfn severe
Trojan:MacOS/Stealer.SA severe
Trojan:MSIL/DCRat.A!MTB severe
Trojan:MSIL/Dibizor!atmn severe
Trojan:MSIL/DllInject.N!MTB severe
Trojan:MSIL/Jalapeno!rfn severe
Trojan:MSIL/KillMBR.A!MTB severe
Trojan:MSIL/XWorm!rfn severe
Trojan:PDF/Phish!MSR severe
Trojan:PDF/Phish!rfn severe
Trojan:PHP/Obfuse!rfn severe
Trojan:PowerShell/DCRat.AC!MTB severe
Trojan:PowerShell/GuLoader.PA!MTB severe
Trojan:PowerShell/Malgent!MSR severe
Trojan:PowerShell/QakBot!rfn severe
Trojan:PowerShell/StealC!rfn severe
Trojan:Python/Multiverze!rfn severe
Trojan:Script/Multiverze!rfn severe
Trojan:VBS/Emoter!rfn severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/GuLoader.XE!MTB severe
Trojan:VBS/Obfus!rfn severe
Trojan:VBS/Obfuse!rfn severe
Trojan:VBS/Qakbot!rfn severe
Trojan:Win32/AutoitInject.DSK!MTB severe
Trojan:Win32/Bluteal!rfn severe
Trojan:Win32/Casdet!rfn severe
Trojan:Win32/Cerber!rfn severe
Trojan:Win32/ClickFix.DAD!MTB severe
Trojan:Win32/Coroxy!rfn severe
Trojan:Win32/Delf!rfn severe
Trojan:Win32/DllInject!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Emotetcrypt!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Farfli!atmnm severe
Trojan:Win32/Fauppod!rfn severe
Trojan:Win32/FormBook!rfn severe
Trojan:Win32/Gozi!rfn severe
Trojan:Win32/IcedId!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Keydoor!MSR severe
Trojan:Win32/KillMBR!rfn severe
Trojan:Win32/Kryptic!rfn severe
Trojan:Win32/Latrodectus!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/Matanbuch!rfn severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/MpTamperBulkExcl.B severe
Trojan:Win32/MultiInjector.C!rfn severe
Trojan:Win32/Neoreblamy!rfn severe
Trojan:Win32/Oader!rfn severe
Trojan:Win32/PhishLeonem!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Qakbot!rfn severe
Trojan:Win32/QbotLNK!rfn severe
Trojan:Win32/Qwexlafiba!rfn severe
Trojan:Win32/Ravartar!rfn severe
Trojan:Win32/RomCom!rfn severe
Trojan:Win32/Rozena!rfn severe
Trojan:Win32/Rugmi!rfn severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Skeeyah severe
Trojan:Win32/StealC!rfn severe
Trojan:Win32/Suloc!rfn severe
Trojan:Win32/Supma.A severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/TurtleLoader!rfn severe
Trojan:Win32/VidarStealer.Z!MTB severe
Trojan:Win32/Wingo!rfn severe
Trojan:Win32/WinLnk.BZ!MTB severe
Trojan:Win32/WinLNKRun!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Zloader!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win32/Zusy!rfn severe
Trojan:Win64/Bumblebee!rfn severe
Trojan:Win64/Cerbu.B!MTB severe
Trojan:Win64/Cerbu.C!MTB severe
Trojan:Win64/CobaltStrike!rfn severe
Trojan:Win64/Convagent.C!MTB severe
Trojan:Win64/DLLHijack!rfn severe
Trojan:Win64/DLLHijack.A!MTB severe
Trojan:Win64/Emotet!rfn severe
Trojan:Win64/Emotetcrypt!rfn severe
Trojan:Win64/EmotetPacker!rfn severe
Trojan:Win64/GoCrypt!rfn severe
Trojan:Win64/HashvaultMiner!rfn severe
Trojan:Win64/Injector.EO severe
Trojan:Win64/KillAV!rfn severe
Trojan:Win64/Lazy!MTB severe
Trojan:Win64/Malgent!MSR severe
Trojan:Win64/Maloder!rfn severe
Trojan:Win64/Meterpreter!rfn severe
Trojan:Win64/Nimbus.GVA!MTB severe
Trojan:Win64/Remus.ZY severe
Trojan:Win64/Remus.ZZ severe
Trojan:Win64/RemusStealer.ZZ!sms severe
Trojan:Win64/ShellLoader.YX!MTB severe
Trojan:Win64/SpyLoader!rfn severe
Trojan:Win64/Ulise.A!MTB severe
Trojan:Win64/Xegumumune.B!MTB severe
Trojan:Win64/Zloader!rfn severe
Trojan:Win64/Zusy!MTB severe
Trojan:Win64/Zusy!rfn severe
Trojan:Win64/Zusy.C!MTB severe
TrojanDownloader:BAT/QakBotLoader!rfn severe
TrojanDownloader:HTML/Adodb.gen!A severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:O97M/Dridex.RD!MTB severe
TrojanDownloader:O97M/Emotet!rfn severe
TrojanDownloader:O97M/Emotet.PEE!MTB severe
TrojanDownloader:O97M/EncDoc!rfn severe
TrojanDownloader:O97M/Obfuse!rfn severe
TrojanDownloader:PowerShell/PEDropper!rfn severe
TrojanDownloader:Win32/ShortSeek!rfn severe
TrojanDropper:AndroidOS/SAgent!rfn severe
TrojanDropper:AndroidOS/Shedun!rfn severe
TrojanSpy:AndroidOS/SpyNote!rfn severe
VirTool:Win32/Bruterat!rfn severe
VirTool:Win32/VidarStealer.Z!MTB severe
Worm:MSIL/Mofin!atmn severe
Worm:Win32/Babonock.A severe
Worm:Win32/Mofksys!rfn severe