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Change logs for security intelligence update version 1.445.367.0

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

3/5/2026 12:18:37 PM

Added threat detections

Name Severity
Trojan:MSIL/GhostForm.DB!MTB severe
Trojan:MSIL/Heracles.GPSE!MTB severe
Trojan:Python/Nuitka!MTB severe
Trojan:Win32/Neoreblamy.NUE!MTB severe
Trojan:Win64/LucaStealer.PGLS!MTB severe
Trojan:Win64/REntS!MTB severe
TrojanDropper:Win32/QuasarRAT.AM!AMTB severe
VirTool:Script/AmsiSuspClickfix.G severe

Updated threat detections

Name Severity
Backdoor:Win32/Zegost!rfn severe
Exploit:Win64/CVE-2022-3699.B!MSR severe
HackTool:MSIL/AutoKMS!rfn high
HackTool:PowerShell/PowerView!pz high
HackTool:Win32/Crack!MSR high
HackTool:Win32/Mimikatz.AA!MTB high
HackTool:Win32/Patch high
HackTool:Win32/Patcher!AMTB high
HackTool:Win32/RemoteAdmin!rfn high
Program:Win32/Vigram.A high
Ransom:Win32/Conti!rfn severe
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:BAT/QakbotLNK!rfn severe
Trojan:HTML/Phish.PB!MTB severe
Trojan:HTML/Redirector.BAJ!MTB severe
Trojan:HTML/Redirector.SEU!MTB severe
Trojan:HTML/ScrInject.PLJLH!MTB severe
Trojan:HTML/ScrInject.SJKP!MTB severe
Trojan:JS/Cryxos.AD!MTB severe
Trojan:JS/Redirector.AHC!MTB severe
Trojan:JS/Redirector.TSM!MTB severe
Trojan:JS/Redirector.ZAH!MTB severe
Trojan:MSIL/CoinMiner!rfn severe
Trojan:MSIL/GhostForm.DA!MTB severe
Trojan:MSIL/Heracles!rfn severe
Trojan:MSIL/InjectorNetT!MTB severe
Trojan:MSIL/Lazy.KKA!MTB severe
Trojan:MSIL/Quasar!rfn severe
Trojan:MSIL/Zilla!MTB severe
Trojan:O97M/DDownloader!rfn severe
Trojan:PDF/Phish.PD!MTB severe
Trojan:PowerShell/Boxter.PGBX!MTB severe
Trojan:Python/Bobik.EB!MTB severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/Pterodo!rfn severe
Trojan:VBS/XMRig.SVM!MTB severe
Trojan:Win32/AutoItinject!ibt severe
Trojan:Win32/AutoitInject.AHB!MTB severe
Trojan:Win32/AutoitInject.SPB!MTB severe
Trojan:Win32/Azorult!rfn severe
Trojan:Win32/Casdet!rfn severe
Trojan:Win32/Cerbu!MTB severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Fareit!MTB severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/LummaStealer!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/NSISInject!MTB severe
Trojan:Win32/Occamy.CE9 severe
Trojan:Win32/OysterLoader!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Primarypass!rfn severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Spyware.ARR!MTB severe
Trojan:Win32/Supma.A severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Tedy!MTB severe
Trojan:Win32/Virlock!MTB severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win32/Zusy.HBE!MTB severe
Trojan:Win64/CoinMiner!rfn severe
Trojan:Win64/DisguisedXMRigMiner!rfn severe
Trojan:Win64/EmotetPacker!rfn severe
Trojan:Win64/Lazy.RR!MTB severe
Trojan:Win64/LummaStealer!rfn severe
Trojan:Win64/Malgent!MSR severe
Trojan:Win64/Nuitka!MTB severe
Trojan:Win64/Oysterloader!rfn severe
Trojan:Win64/Skeeyah!MTB severe
Trojan:Win64/Skeeyah.MG!MTB severe
Trojan:Win64/WinGoObfusc!rfn severe
TrojanDownloader:JS/Qakbot!rfn severe
Worm:VBS/Spdunx.A severe
Worm:Win32/Nuqel!rfn severe
Worm:Win32/Nuqel.BJ severe
Worm:Win32/Sohanad!rfn severe