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Change logs for security intelligence update version 1.459.568.0

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

10/5/2026 10:43:25 PM

Added threat detections

Name Severity
Adware:JS/BrowserModifier!AMTB high
Ransom:HTML/CryptoWall.G!MTB severe
Ransom:Win32/WarLock!MSR severe
Trojan:MSIL/VioletRatLoader.AL!MTB severe
Trojan:VBS/GuLoader.XI!MTB severe
Trojan:Win32/ShellCodeRunner.GD!MTB severe
Trojan:Win64/Yogi.SR!MTB severe
TrojanDownloader:Linux/GitHook!AMTB severe

Updated threat detections

Name Severity
Adware:Win32/Tnega high
Backdoor:MSIL/AsyncRat.AD!MTB severe
Backdoor:MSIL/Quasar!rfn severe
Backdoor:PHP/Webshell!rfn severe
Backdoor:Win32/Berbew!rfn severe
Backdoor:Win32/Koceg!rfn severe
Backdoor:Win32/Zegost.GP!MTB severe
DDoS:Linux/Multiverze!rfn severe
Exploit:O97M/CVE-2017-0199!rfn severe
HackTool:AndroidOS/Mesploit!rfn high
HackTool:Python/PWDump.A!MTB high
HackTool:Win32/AmDisable!rfn high
HackTool:Win32/crack high
HackTool:Win32/HackAV!MTB high
HackTool:Win32/Patcher!MTB high
HackTool:Win32/UACBypass!rfn high
HackTool:Win64/KMSAuto!MTB high
Phish:HTML/Redirector.PE!MTB severe
Phish:HTML/Redirector.PF!MTB severe
Program:MacOS/Multiverze!rfn high
PWS:MSIL/Stealer!rfn severe
Ransom:Win32/BabukAgent!rfn severe
Ransom:Win32/BabukLoader!rfn severe
Ransom:Win32/Inc!rfn severe
Ransom:Win32/Nokonoko!rfn severe
Ransom:Win64/Akira!rfn severe
Ransom:Win64/Mamona!rfn severe
Ransom:Win64/Newcryptor!rfn severe
Ransom:Win64/Rusted.ARA!MTB severe
Tool:AndroidOS/Multiverze!rfn moderate
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:BAT/Qakbot!rfn severe
Trojan:BAT/QakbotLNK!rfn severe
Trojan:BAT/Starter.G!lnk severe
Trojan:HTML/Pterodo!rfn severe
Trojan:HTML/Qakbot!rfn severe
Trojan:JS/Cryxos!MTB severe
Trojan:JS/Latrodectus!rfn severe
Trojan:JS/Qakbot!rfn severe
Trojan:JS/QakbotLNK!rfn severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MacOS/Multiverze!rfn severe
Trojan:MSIL/AgentTesla.XB!MTB severe
Trojan:MSIL/FBStealer.SX!MTB severe
Trojan:MSIL/Injuke!rfn severe
Trojan:MSIL/Jalapeno!rfn severe
Trojan:MSIL/Mamut.ARA!MTB severe
Trojan:MSIL/QuasarRat!rfn severe
Trojan:MSIL/Zusy!rfn severe
Trojan:O97M/DDownloader!rfn severe
Trojan:PDF/Phish!rfn severe
Trojan:PDF/Ursinf!rfn severe
Trojan:PowerShell/Obfuscate!MTB severe
Trojan:PowerShell/Pterodo!rfn severe
Trojan:PowerShell/Runner.GP!MTB severe
Trojan:Python/Multiverze!rfn severe
Trojan:Python/SynkLoader!AMTB severe
Trojan:Script/Multiverze!rfn severe
Trojan:VBS/Emoter!rfn severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/GuLoader.XH!MTB severe
Trojan:VBS/Lazy!MTB severe
Trojan:VBS/Obfuscate.PO!MTB severe
Trojan:VBS/Obfuse!MTB severe
Trojan:VBS/Obfuse.KE!MTB severe
Trojan:VBS/Pterodo!rfn severe
Trojan:VBS/Qakbot!rfn severe
Trojan:VBS/Runner!MTB severe
Trojan:VBS/ShortPipe!rfn severe
Trojan:VBS/Valyri!MTB severe
Trojan:Win32/AutoitInject.C!MTB severe
Trojan:Win32/AutoitInject.DSK!MTB severe
Trojan:Win32/AutoitShellInj.A!MTB severe
Trojan:Win32/Bobik!rfn severe
Trojan:Win32/CoreWarrior!rfn severe
Trojan:Win32/Coroxy!rfn severe
Trojan:Win32/DllInject!rfn severe
Trojan:Win32/Dridex!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Fauppod!rfn severe
Trojan:Win32/Flystudio!MTB severe
Trojan:Win32/FlyStudio.PGC!MTB severe
Trojan:Win32/Gracing!rfn severe
Trojan:Win32/IcedId!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Krap!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/MalLoader!rfn severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/Mikey!rfn severe
Trojan:Win32/NabucurObfs!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Primarypass!rfn severe
Trojan:Win32/Qadars!rfn severe
Trojan:Win32/Qakbot!rfn severe
Trojan:Win32/QbotLNK!rfn severe
Trojan:Win32/QQPass!rfn severe
Trojan:Win32/Qwexlafiba!rfn severe
Trojan:Win32/Ravartar!rfn severe
Trojan:Win32/Rozena!rfn severe
Trojan:Win32/Runner.HB!MTB severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/TitanStealer!rfn severe
Trojan:Win32/VMProtect!MTB severe
Trojan:Win32/WinLNK!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win32/Zusy.YSN!MTB severe
Trojan:Win64/ClipBanker!MTB severe
Trojan:Win64/ClipBanker.NZB!MTB severe
Trojan:Win64/ClipBanker.NZD!MTB severe
Trojan:Win64/CobaltStrike!rfn severe
Trojan:Win64/CoinMiner!MTB severe
Trojan:Win64/DisguisedXMRigMiner!rfn severe
Trojan:Win64/Donut!rfn severe
Trojan:Win64/Emotet!rfn severe
Trojan:Win64/Emotetcrypt!rfn severe
Trojan:Win64/EmotetPacker!rfn severe
Trojan:Win64/KillAv.LR!MTB severe
Trojan:Win64/Latrodectus!rfn severe
Trojan:Win64/Lazy!MTB severe
Trojan:Win64/Lazy!rfn severe
Trojan:Win64/Malgent!AMTB severe
Trojan:Win64/MetaStealer!MTB severe
Trojan:Win64/Midie!rfn severe
Trojan:Win64/Oyster!rfn severe
Trojan:Win64/PortStart!rfn severe
Trojan:Win64/ShellcodeRunner!rfn severe
Trojan:Win64/ShellcodeRunner.ARA!MTB severe
Trojan:Win64/ShellLoader.YX!MTB severe
Trojan:Win64/SpyLoader!rfn severe
Trojan:Win64/Tedy!MTB severe
Trojan:Win64/Tedy.AD!MTB severe
Trojan:Win64/Turla!rfn severe
Trojan:Win64/Vidar!MTB severe
Trojan:Win64/WinGoObfusc!rfn severe
Trojan:Win64/Yogi!MTB severe
Trojan:Win64/ZLoaderE!rfn severe
Trojan:Win64/Zusy!MTB severe
Trojan:Win64/Zusy.HM!MTB severe
TrojanDownloader:BAT/Gamaredon!rfn severe
TrojanDownloader:BAT/Qakbot!rfn severe
TrojanDownloader:BAT/QakBotLoader!rfn severe
TrojanDownloader:JS/Nemucod!rfn severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:PowerShell/Obfuse!rfn severe
TrojanDownloader:PowerShell/PEDropper!rfn severe
TrojanDownloader:Win32/Malgent!MSR severe
TrojanDropper:AndroidOS/SAgent!rfn severe
TrojanDropper:Win64/KillAV.GB!MTB severe
TrojanSpy:MSIL/Keylogger!rfn severe
VirTool:MSIL/Aikaantivm!rfn severe
VirTool:MSIL/DumpLsass.A severe
VirTool:MSIL/Empire.Y severe
VirTool:MSIL/Injector!rfn severe
VirTool:Win64/Empire.T severe
Worm:Win32/Mofksys!rfn severe