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Change logs for security intelligence update version 1.445.376.0

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

3/6/2026 2:18:35 AM

Added threat detections

Name Severity
Behavior:MacOS/SuspHiddenUserCreation.A7 severe
Trojan:HTML/ScrInject.AGK!MTB severe
Trojan:HTML/ScrInject.AGV!MTB severe
Trojan:Win64/CobalStrike.ARA!MTB severe
TrojanDropper:Win64/CVE-2024-26229.ARA!MTB severe

Updated threat detections

Name Severity
Adware:Win32/Tnega high
Backdoor:Linux/Mirai!MSR severe
Backdoor:Win32/Berbew.AA!MTB severe
Backdoor:Win64/Coroxy!rfn severe
Behavior:MacOS/SuspKeyChainCopy.AB severe
Behavior:MacOS/SuspNukeSpedExec.B severe
Exploit:JS/OVCExploit.gen severe
Exploit:Win32/ShellCode.A severe
HackTool:Win32/Keygen high
Ransom:Win32/BastaLoader!rfn severe
Ransom:Win32/ContiCrypt!rfn severe
Ransom:Win32/Lockbit!rfn severe
Ransom:Win64/Inc!rfn severe
SoftwareBundler:Win32/GoFileExpress high
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:HTML/FakeLogin.ARTN!MTB severe
Trojan:HTML/Phish.AHA!MTB severe
Trojan:HTML/Phish.SLBE!MTB severe
Trojan:HTML/Phish.ZWW!MTB severe
Trojan:HTML/Redirector.BAJ!MTB severe
Trojan:HTML/Redirector.SEU!MTB severe
Trojan:HTML/ScrInject.AGV!MTB severe
Trojan:HTML/ScrInject.PLJLH!MTB severe
Trojan:HTML/ScrInject.SJKP!MTB severe
Trojan:HTML/ScrInject.SMW!MTB severe
Trojan:JS/Qakbot!rfn severe
Trojan:JS/QakbotLNK!rfn severe
Trojan:JS/Redirector.AHC!MTB severe
Trojan:JS/Redirector.ZEI!MTB severe
Trojan:MSIL/Lazy.KKA!MTB severe
Trojan:MSIL/Zilla!MTB severe
Trojan:PDF/Phish!MSR severe
Trojan:Script/Multiverze!rfn severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/ObfDldr!rfn severe
Trojan:VBS/Obfuse!rfn severe
Trojan:Win32/Alevaul!rfn severe
Trojan:Win32/Amadey!rfn severe
Trojan:Win32/AresLdrCrypt!rfn severe
Trojan:Win32/Blihan.MA!MTB severe
Trojan:Win32/CoreWarrior.DA!MTB severe
Trojan:Win32/Daws.EC!MTB severe
Trojan:Win32/DllInject!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Fareit.VB!MTB severe
Trojan:Win32/Farfli.AHD!MTB severe
Trojan:Win32/Kazadm.A!MTB severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/LsassCodeInjector!rfn severe
Trojan:Win32/LummaStealer!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/ModiLoader!rfn severe
Trojan:Win32/Nukesped.MK!MTB severe
Trojan:Win32/Qukart.ASO!MTB severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/ShellcodeRunner.LME!MTB severe
Trojan:Win32/Suloc!rfn severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/SystemBC!rfn severe
Trojan:Win32/WinLNK.HDU!MTB severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Zbot.HBAI!MTB severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win32/Zusy.HBE!MTB severe
Trojan:Win32/Zusy.LMV!MTB severe
Trojan:Win64/BlackWidow!rfn severe
Trojan:Win64/BumbleBee!rfn severe
Trojan:Win64/CryptInject!rfn severe
Trojan:Win64/DllInject!rfn severe
Trojan:Win64/PortStarter!rfn severe
Trojan:Win64/Qakbot!rfn severe
Trojan:Win64/Skeeyah.MG!MTB severe
Trojan:Win64/ZLoader!rfn severe
TrojanDownloader:O97M/Emotet!rfn severe
TrojanDownloader:VBS/Emotet!rfn severe
TrojanDropper:Win32/Delf!rfn severe
TrojanDropper:Win32/Salgorea.AI!MTB severe