Change logs for security intelligence update version 1.445.332.0

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

3/3/2026 10:24:32 AM

Added threat detections

Name	Severity
Trojan:HTML/Stealer.ARR!MTB	severe
Trojan:MSIL/InjectorNetT.ALRB!MTB	severe
Trojan:MSIL/Lazy.ARR!MTB	severe
Trojan:Win32/Amatera.LM!MTB	severe
Trojan:Win32/ShellcodeRunner.LME!MTB	severe
Trojan:Win32/Spyware.ARR!MTB	severe
Trojan:Win64/MildTailor.A!dha	severe
Trojan:Win64/PassTamper!rfn	severe
Trojan:Win64/PyInject!MTB	severe
Trojan:Win64/Tedy.LMV!MTB	severe
Trojan:Win64/Tedy.RVB!MTB	severe

Updated threat detections

Name	Severity
Adware:MSIL/BrowserAssistant	high
Backdoor:Win64/Supper!rfn	severe
Exploit:JS/Blacole.A	severe
HackTool:Win32/Activator	high
HackTool:Win32/Keygen	high
HackTool:Win32/Patcher	high
Joke:AndroidOS/Multiverze!rfn	moderate
Ransom:Linux/Conti!rfn	severe
Ransom:Win32/Babuk!rfn	severe
Ransom:Win32/Basta!rfn	severe
Ransom:Win32/Filecoder!rfn	severe
Ransom:Win32/Genasom!rfn	severe
Ransom:Win32/Inc!rfn	severe
Ransom:Win32/Prestige!rfn	severe
Ransom:Win64/Filecoder!rfn	severe
Trojan:AndroidOS/AVerseFalc!rfn	severe
Trojan:HTML/Qakbot!rfn	severe
Trojan:HTML/Redirector.MKE!MTB	severe
Trojan:HTML/Redirector.MSS!MTB	severe
Trojan:HTML/Redirector.SEM!MTB	severe
Trojan:HTML/Redirector.SEU!MTB	severe
Trojan:JS/QakbotLNK!rfn	severe
Trojan:Linux/Multiverze!rfn	severe
Trojan:Linux/SAgnt!MSR	severe
Trojan:Linux/SshBrute	severe
Trojan:MSIL/Heracles!MTB	severe
Trojan:MSIL/SantaStealer!MTB	severe
Trojan:MSIL/Zilla!MTB	severe
Trojan:O97M/DDownloader!rfn	severe
Trojan:PDF/Ursnif!rfn	severe
Trojan:PowerShell/Boxter.PGBX!MTB	severe
Trojan:Python/Bobik.EB!MTB	severe
Trojan:Python/ReverseShell!MTB	severe
Trojan:Script/Multiverze!rfn	severe
Trojan:Script/Wacatac	severe
Trojan:VBS/Qakbot!rfn	severe
Trojan:Win32/Acll!rfn	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/BlackMoon.BAA!MTB	severe
Trojan:Win32/Cerber!rfn	severe
Trojan:Win32/CoreWarrior.DA!MTB	severe
Trojan:Win32/CryptInject!rfn	severe
Trojan:Win32/DllInject!rfn	severe
Trojan:Win32/DSSDetection	severe
Trojan:Win32/Dynamer!dtc	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Etset!rfn	severe
Trojan:Win32/Fauppod!rfn	severe
Trojan:Win32/Kazadm.A!MTB	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/Kovter!rfn	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/LucaStealer!MTB	severe
Trojan:Win32/Malgent	severe
Trojan:Win32/Malgent!MSR	severe
Trojan:Win32/MereTam!rfn	severe
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/Primarypass!rfn	severe
Trojan:Win32/Qakbot!rfn	severe
Trojan:Win32/Seheq!rfn	severe
Trojan:Win32/SelfDel.A!MTB	severe
Trojan:Win32/Supma.A	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/SystemBC!rfn	severe
Trojan:Win32/Vindor!rfn	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win32/Znyonm!rfn	severe
Trojan:Win32/Zusy.BL!MTB	severe
Trojan:Win64/CoinMiner!rfn	severe
Trojan:Win64/DisguisedXMRigMiner	severe
Trojan:Win64/Emotet!rfn	severe
Trojan:Win64/Emotetcrypt!rfn	severe
Trojan:Win64/IcedID!rfn	severe
Trojan:Win64/Malgent!MSR	severe
Trojan:Win64/Mikey.GXV!MTB	severe
Trojan:Win64/ShellcodeRunner!rfn	severe
Trojan:Win64/Tedy!MTB	severe
Trojan:Win64/Tedy.PAB!MTB	severe
TrojanDownloader:JS/AgentTesla.RVA!MTB	severe
TrojanDownloader:JS/Nemucod	severe
TrojanDownloader:O97M/Emotet!rfn	severe
TrojanDownloader:Win32/Citeary!rfn	severe
TrojanDownloader:Win64/Tnega!MTB	severe
TrojanDropper:Win32/Salgorea.AI!MTB	severe
TrojanSpy:Win32/Skeeyah.A!rfn	severe
VirTool:WinNT/Rootkitdrv!rfn	severe