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Change logs for security intelligence update version 1.445.496.0

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

3/12/2026 12:02:25 PM

Added threat detections

Name Severity
Exploit:PHP/Small.RB!AMTB severe
Exploit:Python/Shellcode.RA!AMTB severe
Exploit:Python/Shellcode.RC!AMTB severe
Phish:HTML/FakeLogin.PHA!MTB severe
Phish:HTML/FakeLogin.PHB!MTB severe
Phish:HTML/Redirector.MWY!MTB severe
Trojan:BAT/BadJoke.GPA!MTB severe
Trojan:HTML/Phish.GSL!MTB severe
Trojan:MacOS/NukeSped.D!AMTB severe
Trojan:MacOS/Shlayer.SA severe
Trojan:MSIL/Crysan.HLN!MTB severe
Trojan:MSIL/DarkTortilla.RVB!MTB severe
Trojan:MSIL/NjRat.AYB!MTB severe
Trojan:MSIL/Remcos.ABSB!MTB severe
Trojan:MSIL/Rozena.AYA!MTB severe
Trojan:MSIL/Rozena.AYB!MTB severe
Trojan:MSIL/Startun.HLN!MTB severe
Trojan:MSIL/XWorm.AYD!MTB severe
Trojan:PowerShell/ReverseShell.GPA!MTB severe
Trojan:VBS/GuLoader.RBS!MTB severe
Trojan:VBS/KillAV.GSL!MTB severe
Trojan:VBS/SAgent.GSL!MTB severe
Trojan:Win32/AgentB.HVD!MTB severe
Trojan:Win32/Amatera.GVM!MTB severe
Trojan:Win32/GuLoader.REK!MTB severe
Trojan:Win32/SalatStealer.MK!MTB severe
Trojan:Win32/Tedy.SXJ!MTB severe
Trojan:Win32/XBlocker.FVD!MTB severe
Trojan:Win64/BadIIS.SX!MTB severe
Trojan:Win64/BadJoke.GPB!MTB severe
Trojan:Win64/DllHijack!AMTB severe
Trojan:Win64/Fareit.MK!MTB severe
Trojan:Win64/Midie.MK!MTB severe
Trojan:Win64/QuasarRat.AH!MTB severe
Trojan:Win64/ShellcodeRunner.AVD!MTB severe
Trojan:Win64/ShellcodeRunner.SXJ!MTB severe
Trojan:Win64/Tedy.AVD!MTB severe
Trojan:Win64/Tedy.NUB!MTB severe
TrojanDownloader:VBS/Houdini.GSL!MTB severe
VirTool:MSIL/Diverteresz!rfn severe

Updated threat detections

Name Severity
Adware:Win32/Eorezo high
Backdoor:Win32/Pterodo!rfn severe
Backdoor:Win64/PortStarter!rfn severe
Backdoor:Win64/Supper!rfn severe
Behavior:MacOS/SuspPassSteal.E severe
Behavior:Win32/SuspClickFix.SA severe
Exploit:Linux/CVE-2024-3094.A severe
Exploit:Linux/CVE-2024-3094.D severe
HackTool:Win32/Crack!MTB high
HackTool:Win32/PasswordRecovery!AMTB high
Ransom:BAT/BitLocker!rfn severe
Ransom:Win32/Clop!rfn severe
Ransom:Win32/Play!rfn severe
Ransom:Win64/BlackByte!MTB severe
Ransom:Win64/Mallox!rfn severe
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:AndroidOS/Multiverze!rfn severe
Trojan:BAT/LNK_DarkGate!rfn severe
Trojan:HTML/Nioc!rfn severe
Trojan:JS/IcedID!rfn severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MSIL/ClipBanker.AYB!MTB severe
Trojan:MSIL/Injector.AH!MTB severe
Trojan:O97M/DDownloader!rfn severe
Trojan:PowerShell/StealC!rfn severe
Trojan:Python/Nuitka!MTB severe
Trojan:Script/Multiverze!rfn severe
Trojan:VBS/GuLoader.RBM!MTB severe
Trojan:Win32/Alevaul!rfn severe
Trojan:Win32/ArkeiSpyLoader!rfn severe
Trojan:Win32/BlackMoon!MTB severe
Trojan:Win32/CleanUpLoaderLNK!rfn severe
Trojan:Win32/ClipBanker!rfn severe
Trojan:Win32/DllInject!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/FormBook!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/Malgent!MTB severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/PhishLeonem!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Rctopus severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Staser!MTB severe
Trojan:Win32/Stealer!rfn severe
Trojan:Win32/Supma.A severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Tedy!MTB severe
Trojan:Win32/Tiggre!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win32/Zusy!MTB severe
Trojan:Win64/Agentb.BMD!MTB severe
Trojan:Win64/Aotera.GVN!MTB severe
Trojan:Win64/AutoRun!MTB severe
Trojan:Win64/BumbleBee!rfn severe
Trojan:Win64/ClipBanker!rfn severe
Trojan:Win64/CoinMiner!rfn severe
Trojan:Win64/EmotetPacker!rfn severe
Trojan:Win64/Lazy.NUA!MTB severe
Trojan:Win64/Malgent!MTB severe
Trojan:Win64/Rhadamanthys.NUB!MTB severe
Trojan:Win64/VMProtect!MTB severe
TrojanDownloader:HTML/Adodb!rfn severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:O97M/Emotet!rfn severe
Worm:Win32/AutoRun!rfn severe
Worm:Win32/Brontok!rfn severe