Change logs for security intelligence update version 1.457.370.0

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

8/27/2026 7:00:37 PM

Added threat detections

Name	Severity
Adware:HTML/Phish!AMTB	high
Backdoor:Linux/FakeZimClient.A	severe
Backdoor:Linux/FakeZimDownloader.A	severe
HackTool:Win64/GameCheat!MTB	high
Trojan:BAT/DefDisable.BA!MTB	severe
Trojan:JS/AgentTesla.PF!MTB	severe
Trojan:JS/FormBook.AW!MTB	severe
Trojan:Linux/FakeChronydMiner.A	severe
Trojan:Linux/FakeSysResolved.AA	severe
Trojan:Linux/ShellDropper.AA	severe
Trojan:PowerShell/Boxter.AV!MTB	severe
Trojan:Win32/ClickFix.YBA!MTB	severe
Trojan:Win32/GuLoader.XB!MTB	severe
Trojan:Win32/Vidar.ZA!MTB	severe
Trojan:Win64/Aotera.CZ!MTB	severe
Trojan:Win64/CoinMiner.NX!MTB	severe
Trojan:Win64/HypeAgent.AH!MTB	severe
Trojan:Win64/LummaStealer.NV!MTB	severe
Trojan:Win64/ValleyRat.AQ!MTB	severe
Trojan:Win64/Yogi.AB!MTB	severe
Trojan:Win64/Yogi.AC!MTB	severe

Updated threat detections

Name	Severity
Adware:AndroidOS/Multiverze!rfn	high
Adware:Script/Multiverze!rfn	high
Adware:Win32/Agent	high
Backdoor:ASP/Dirtelti!rfn	severe
Backdoor:Linux/Dakkatoni!rfn	severe
Backdoor:MSIL/AsyncRAT!rfn	severe
Backdoor:MSIL/Quasar!rfn	severe
Backdoor:MSIL/XWormRAT!rfn	severe
Backdoor:PHP/Remoteshell.A	severe
Backdoor:PHP/Webshell!rfn	severe
Backdoor:Win32/Koceg!rfn	severe
Backdoor:Win32/Mydoom!rfn	severe
Backdoor:Win32/Venik!rfn	severe
Behavior:Win32/QuartzMoor!apsi	severe
DDoS:Win32/Nitol!pz	severe
Exploit:Linux/CVE-2024-3094.A	severe
Exploit:Linux/CVE-2024-3094.F	severe
Exploit:Linux/REDSHELL.DA!MTB	severe
Exploit:MacOS/JailBreak.AB!MTB	severe
Exploit:O97M/CVE-2017-0199.VDY!MTB	severe
Exploit:Win64/CVE-2022-3699.B!MSR	severe
Exploit:Win64/CVE-2025-70795!rfn	severe
HackTool:BAT/AutoKMS!MSR	high
HackTool:MSIL/AutoKms!pz	high
HackTool:MSIL/Winactivator	high
HackTool:PHP/Webshell!AMTB	high
HackTool:PowerShell/PowerSploit.E	high
HackTool:Python/Impacket!AMTB	high
HackTool:Python/Impacket!MSR	high
HackTool:Python/Impacket!MTB	high
HackTool:Win32/AutoKMS!pz	high
HackTool:Win32/Crack!MTB	high
HackTool:Win32/Defendercontrol	high
HackTool:Win32/Gsecdump	high
HackTool:Win32/Keygen	high
HackTool:Win32/Keygen!MTB	high
HackTool:Win32/Keygen!pz	high
HackTool:Win32/Malgent!MSR	high
HackTool:Win32/Patcher	high
HackTool:Win32/Patcher!MTB	high
HackTool:Win32/PsAttack!rfn	high
HackTool:Win32/RemoteAdmin!rfn	high
HackTool:Win64/Meterpreter	high
HackTool:Win64/RemoteAdmin!MTB	high
HackTool:Win64/Tedy!MTB	high
Phish:PDF/FakeRobot.RV!MTB	severe
Program:Python/Multiverze!rfn	high
Program:Script/Multiverze!rfn	high
Program:Win32/Uwamson.A!rfn	high
Ransom:BAT/DisableDefender.A!dha	severe
Ransom:Linux/Babuk.B!MTB	severe
Ransom:MSIL/HiddenTear!rfn	severe
Ransom:Win32/Conti!rfn	severe
Ransom:Win32/ContiCrypt!rfn	severe
Ransom:Win32/FileCoder.PD!MTB	severe
Ransom:Win32/Flocked.YAD!MTB	severe
Ransom:Win32/LynxCrypt!rfn	severe
Ransom:Win32/MoneyMessage!rfn	severe
Ransom:Win32/WannaCrypt!pz	severe
Ransom:Win64/Akira!rfn	severe
Ransom:Win64/Cartel!rfn	severe
Ransom:Win64/Magniber!rfn	severe
SoftwareBundler:Win32/DealPly	high
Spyware:AndroidOS/Multiverze!rfn	high
Spyware:Script/Multiverze!rfn	high
Trojan:AndroidOS/Autopay!rfn	severe
Trojan:AndroidOS/AVerseFalc!rfn	severe
Trojan:AndroidOS/BTMOBRat!rfn	severe
Trojan:AndroidOS/Coper!rfn	severe
Trojan:AndroidOS/FakeApp!rfn	severe
Trojan:AndroidOS/FakeInstSms!rfn	severe
Trojan:AndroidOS/SMforw!rfn	severe
Trojan:AndroidOS/Tiny!rfn	severe
Trojan:BAT/Obfuse.PA!MTB	severe
Trojan:BAT/Qakbot!rfn	severe
Trojan:BAT/QakbotLNK!rfn	severe
Trojan:HTML/Phish!rfn	severe
Trojan:HTML/Qakbot!rfn	severe
Trojan:JS/Cryxos!rfn	severe
Trojan:JS/FormBook.PD!MTB	severe
Trojan:JS/Latrodectus!rfn	severe
Trojan:Linux/Flooder!rfn	severe
Trojan:Linux/Meterp!rfn	severe
Trojan:Linux/SuspKworkerImplant.B	severe
Trojan:MacOS/Multiverze!rfn	severe
Trojan:MSIL/AgentTesla!rfn	severe
Trojan:MSIL/Bobik!rfn	severe
Trojan:MSIL/Jalapeno!MTB	severe
Trojan:NPM/ReverseShell!AMTB	severe
Trojan:NPM/Stealer!AMTB	severe
Trojan:O97M/DDownloader!rfn	severe
Trojan:PDF/Phish!rfn	severe
Trojan:PDF/Ursnif!rfn	severe
Trojan:PowerShell/Boxter!MSR	severe
Trojan:PowerShell/ReverseShell.SA	severe
Trojan:Python/Multiverze!rfn	severe
Trojan:Python/Pystealer!MTB	severe
Trojan:Python/Tedy!MTB	severe
Trojan:Script/Multiverze!rfn	severe
Trojan:VBS/AgentTesla.SM!MTB	severe
Trojan:VBS/Emotet!rfn	severe
Trojan:VBS/Pterodo!rfn	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/Amadey!rfn	severe
Trojan:Win32/AprilAxe!rfn	severe
Trojan:Win32/AutoitInject	severe
Trojan:Win32/AutoitInject.DSK!MTB	severe
Trojan:Win32/AutoitInject.SPB!MTB	severe
Trojan:Win32/Cerber!rfn	severe
Trojan:Win32/CoinMiner!rfn	severe
Trojan:Win32/CoreWarrior!rfn	severe
Trojan:Win32/Coroxy!rfn	severe
Trojan:Win32/CryptInject!rfn	severe
Trojan:Win32/Cryware!rfn	severe
Trojan:Win32/DllInject!rfn	severe
Trojan:Win32/Dorv!rfn	severe
Trojan:Win32/Dridex!rfn	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Emotet!pz	severe
Trojan:Win32/FakeFolder!MTB	severe
Trojan:Win32/Fauppod!rfn	severe
Trojan:Win32/Filecoder!MTB	severe
Trojan:Win32/Filecoder!rfn	severe
Trojan:Win32/FormBook!rfn	severe
Trojan:Win32/Glupteba!rfn	severe
Trojan:Win32/IcedIDLNK!rfn	severe
Trojan:Win32/Kazadm!rfn	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/Lactrodectus!rfn	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/LummaStealer	severe
Trojan:Win32/Malex!rfn	severe
Trojan:Win32/Malgent	severe
Trojan:Win32/Malgent!MSR	severe
Trojan:Win32/Malgent!MTB	severe
Trojan:Win32/Matanbuchus!rfn	severe
Trojan:Win32/MereTam!rfn	severe
Trojan:Win32/Mikey.LRD!MTB	severe
Trojan:Win32/NutiRat.BB	severe
Trojan:Win32/Oyester!rfn	severe
Trojan:Win32/PhishLeonem!rfn	severe
Trojan:Win32/PikaBot!rfn	severe
Trojan:Win32/PlugX!rfn	severe
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/Presenoker!pz	severe
Trojan:Win32/Qakbot!rfn	severe
Trojan:Win32/Qbot!rfn	severe
Trojan:Win32/Qwexlafiba!rfn	severe
Trojan:Win32/Ramnit!rfn	severe
Trojan:Win32/Ravartar!rfn	severe
Trojan:Win32/Rozena!rfn	severe
Trojan:Win32/Seheq!rfn	severe
Trojan:Win32/ShellcodeRunner!rfn	severe
Trojan:Win32/Skeeyah	severe
Trojan:Win32/Supma.A	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/Tedy!MTB	severe
Trojan:Win32/Tiggre!rfn	severe
Trojan:Win32/ValleyRat!rfn	severe
Trojan:Win32/ValleyRat.AP!MTB	severe
Trojan:Win32/VMProtect!MTB	severe
Trojan:Win32/Wacatac	severe
Trojan:Win32/WinLNK!rfn	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win32/Znyonm!rfn	severe
Trojan:Win32/Zusy!MTB	severe
Trojan:Win32/Zusy!pz	severe
Trojan:Win32/Zusy!rfn	severe
Trojan:Win64/Barys!MTB	severe
Trojan:Win64/Bruterat!rfn	severe
Trojan:Win64/Convagent!MTB	severe
Trojan:Win64/Dacic!MTB	severe
Trojan:Win64/DLLHijack!rfn	severe
Trojan:Win64/Donut!rfn	severe
Trojan:Win64/Emotetcrypt!rfn	severe
Trojan:Win64/EmotetPacker!rfn	severe
Trojan:Win64/HardConnect!rfn	severe
Trojan:Win64/IcedID!rfn	severe
Trojan:Win64/Lazy!MTB	severe
Trojan:Win64/Lazy.AC!MTB	severe
Trojan:Win64/Malgent!MSR	severe
Trojan:Win64/Maloder!rfn	severe
Trojan:Win64/Meterpreter!rfn	severe
Trojan:Win64/Oyster!rfn	severe
Trojan:Win64/OysterLoader!rfn	severe
Trojan:Win64/ShellcodeRunner!rfn	severe
Trojan:Win64/ShellcodeRunner.AD!MTB	severe
Trojan:Win64/Spyboy!rfn	severe
Trojan:Win64/SpyLoader!rfn	severe
Trojan:Win64/Stealer.AMX!MTB	severe
Trojan:Win64/Tedy!MTB	severe
Trojan:Win64/Tedy!pz	severe
Trojan:Win64/Tedy!rfn	severe
Trojan:Win64/TurtleLoader!rfn	severe
Trojan:Win64/Vidar!MTB	severe
Trojan:Win64/Vidar!rfn	severe
Trojan:Win64/Vidar.LR!MTB	severe
Trojan:Win64/VMProtect!MTB	severe
Trojan:Win64/Wingo!MTB	severe
Trojan:Win64/ZLoaderE!rfn	severe
Trojan:Win64/Zusy!MTB	severe
Trojan:Win64/Zusy.AHH!MTB	severe
TrojanClicker:Win32/Yabector	severe
TrojanDownloader:BAT/Phish!rfn	severe
TrojanDownloader:JS/Nemucod!rfn	severe
TrojanDownloader:JS/Qakbot!rfn	severe
TrojanDownloader:O97M/Emotet!rfn	severe
TrojanDownloader:SWF/Esaprof!rfn	severe
TrojanDownloader:Win32/Tnega	severe
TrojanDownloader:Win32/Upatre!rfn	severe
TrojanDropper:PowerShell/Doprimm!rfn	severe
TrojanSpy:AndroidOS/Adrd!rfn	severe
TrojanSpy:AndroidOS/SmsSpy!rfn	severe
TrojanSpy:Win32/Banker!AMTB	severe
VirTool:MSIL/Subti!rfn	severe
VirTool:Win32/Sliver!rfn	severe
Worm:Win32/Brontok!rfn	severe
Worm:Win32/FakeFolder!pz	severe
Worm:Win32/Mofksys!rfn	severe
Worm:Win32/Nuqel!rfn	severe