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Change logs for security intelligence update version 1.463.125.0

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

11/4/2026 3:43:17 PM

Added threat detections

Name Severity
Behavior:MacOS/SuspCurlExec.D severe
Trojan:JS/AgentTesla.ARA!MTB severe
Trojan:JS/CryptoStealer!MSR severe
Trojan:JS/Remcos.MX!MTB severe
Trojan:MSIL/Odbijen!rfn severe
Trojan:VBS/Boxter.WO!MTB severe
Trojan:Win32/CoinMiner.RMX!MTB severe
Trojan:Win32/SuspAutomatedIISActivity.A severe
Trojan:Win64/DiscordStealer.CMX!MTB severe
Trojan:Win64/PowerLoader.AMX!MTB severe
Trojan:Win64/RemusStealer.ARAZ!MTB severe
Trojan:Win64/Xworm.PX!MTB severe

Updated threat detections

Name Severity
Backdoor:Linux/Mirai!rfn severe
Backdoor:Linux/RemoteAccess!AMTB severe
Backdoor:Win32/Koceg!rfn severe
Backdoor:Win32/Remcos!rfn severe
Backdoor:Win64/PipeMagic!rfn severe
Backdoor:Win64/PortStarter!rfn severe
Behavior:MacOS/FakeFinderExec.A severe
Behavior:MacOS/SuspJxaExec.B severe
DDoS:Win32/Stormser!rfn severe
Exploit:Linux/DirtyFrag!rfn severe
Exploit:Win32/Tudimons.A!dha severe
HackTool:Python/Impacket!MSR high
HackTool:Win32/AutoKMS!AMTB high
HackTool:Win32/Crack!MTB high
HackTool:Win32/Keygen high
HackTool:Win32/Meshagent.MBZ!MTB high
Program:MacOS/Multiverze!rfn high
PUAMiner:Win64/ProtoMiner severe
Ransom:Win32/Basta!rfn severe
Ransom:Win32/Inc!rfn severe
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:AndroidOS/FakeApp!rfn severe
Trojan:AndroidOS/Multiverze!rfn severe
Trojan:BAT/Qakbot!rfn severe
Trojan:BAT/ToggleDefender!rfn severe
Trojan:HTML/Qakbot!rfn severe
Trojan:JS/Batloader!rfn severe
Trojan:JS/Latrodectus!rfn severe
Trojan:JS/QakbotLNK!rfn severe
Trojan:Linux/DirtyFrag.DA!MTB severe
Trojan:Linux/Multiverze!rfn severe
Trojan:Linux/SAgnt!MSR severe
Trojan:MacOS/AmosStealer.C!MTB severe
Trojan:MacOS/AmosStealer.D!MTB severe
Trojan:MacOS/Infostealer.MK!MTB severe
Trojan:MacOS/Multiverze!rfn severe
Trojan:MSIL/AgentTesla!rfn severe
Trojan:MSIL/CoinMiner!rfn severe
Trojan:MSIL/CsharpSploit!rfn severe
Trojan:MSIL/Filecoder!MTB severe
Trojan:MSIL/Odbijen.A severe
Trojan:NPM/Multiverze!rfn severe
Trojan:PowerShell/Pklotide.A severe
Trojan:PowerShell/Powersploit.T severe
Trojan:PowerShell/Runner.GP!MTB severe
Trojan:Python/Multiverze!rfn severe
Trojan:Script/Malgent!MSR severe
Trojan:Script/Multiverze!rfn severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/Pterodo!rfn severe
Trojan:Win32/Casdet!rfn severe
Trojan:Win32/CobaltStrike!rfn severe
Trojan:Win32/CoreWarrior!rfn severe
Trojan:Win32/CoreWarrior.DA!MTB severe
Trojan:Win32/Coroxy!rfn severe
Trojan:Win32/CryptInject!rfn severe
Trojan:Win32/DllInject!rfn severe
Trojan:Win32/Draftor!MTB severe
Trojan:Win32/Dridex!rfn severe
Trojan:Win32/Dynamer!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/FileCoder!rfn severe
Trojan:Win32/FormBook!rfn severe
Trojan:Win32/fragtor!rfn severe
Trojan:Win32/FraudLoad!rfn severe
Trojan:Win32/Glupteba!rfn severe
Trojan:Win32/Gozi!rfn severe
Trojan:Win32/Graftor!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Latrodectus!rfn severe
Trojan:Win32/Lazy!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Malex!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/Malgent!MTB severe
Trojan:Win32/Malgent!rfn severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/Mikey!rfn severe
Trojan:Win32/Mira!rfn severe
Trojan:Win32/MyDoom!rfn severe
Trojan:Win32/Oyester!rfn severe
Trojan:Win32/PhishLeonem!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Qakbot!rfn severe
Trojan:Win32/Qwexlafiba!rfn severe
Trojan:Win32/Ravartar!rfn severe
Trojan:Win32/Remcos!rfn severe
Trojan:Win32/SalatStealer!rfn severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Skeeyah!rfn severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/WinLNK.KK!MTB severe
Trojan:Win32/Xpack!rfn severe
Trojan:Win32/Ymacco!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win32/Zusy!rfn severe
Trojan:Win64/AcrStealer!rfn severe
Trojan:Win64/ClipBanker.NZB!MTB severe
Trojan:Win64/ClipBanker.NZD!MTB severe
Trojan:Win64/CryptInject!rfn severe
Trojan:Win64/DllHijack!rfn severe
Trojan:Win64/Donut!rfn severe
Trojan:Win64/Emotet!rfn severe
Trojan:Win64/Emotetcrypt!rfn severe
Trojan:Win64/FakeAV!rfn severe
Trojan:Win64/HackTool!MTB severe
Trojan:Win64/Injector!MTB severe
Trojan:Win64/Injector.MK!MTB severe
Trojan:Win64/Injector.MKA!MTB severe
Trojan:Win64/Lazy!rfn severe
Trojan:Win64/Malgent!MTB severe
Trojan:Win64/Maloder!rfn severe
Trojan:Win64/Oyster!MTB severe
Trojan:Win64/r77RootKit!rfn severe
Trojan:Win64/RemusStealer!rfn severe
Trojan:Win64/RemusStealer.Z!MTB severe
Trojan:Win64/Stealer!AMTB severe
Trojan:Win64/Tedy!MTB severe
Trojan:Win64/Tedy!rfn severe
Trojan:Win64/VMProtect!MTB severe
Trojan:Win64/WinGoObfusc!rfn severe
Trojan:Win64/Yogi!MTB severe
Trojan:Win64/Zusy!rfn severe
TrojanDownloader:BAT/QakBotLoader!rfn severe
TrojanDownloader:JS/Nemucod!AMTB severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:O97M/Emotet!rfn severe
TrojanDownloader:Win32/Nemucod!MTB severe
TrojanDropper:JS/Malgent!MSR severe
TrojanSpy:AndroidOS/Mploit!rfn severe
VirTool:INF/Autorun!rfn severe
VirTool:Win32/Injector!rfn severe
Worm:Win32/Mira!rfn severe