Change logs for security intelligence update version 1.445.212.0

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

2/23/2026 4:15:08 PM

Added threat detections

Name	Severity
HackTool:Win64/ScreenConnect!MTB	high
Trojan:MSIL/Bladabindi.BAB!MTB	severe
Trojan:MSIL/BtmobRat!MTB	severe
Trojan:Win64/CobaltStrike.PAHL!MTB	severe
Trojan:Win64/Raccoon.PAHQ!MTB	severe
Trojan:Win64/Stealc.YGB!MTB	severe
Trojan:Win64/Tedy.ATB!MTB	severe
Trojan:Win64/Vidar.BAA!MTB	severe
Trojan:Win64/Vidar.PAHO!MTB	severe

Updated threat detections

Name	Severity
Adware:Win32/Tnega	high
Backdoor:MSIL/Bladabindi!rfn	severe
Backdoor:MSIL/XWormRAT!rfn	severe
Backdoor:Win64/Coroxy!rfn	severe
Exploit:Linux/CVE-2021-3490.C!MTB	severe
Exploit:Win32/Tudimons.A!dha	severe
HackTool:MSIL/RunAs!MSR	high
HackTool:Python/Impacket!MSR	high
HackTool:Win32/AutoKMS!MTB	high
HackTool:Win32/AutoKMS!rfn	high
HackTool:Win32/CheatEngine	high
HackTool:Win32/crack	high
HackTool:Win32/Crack!MTB	high
HackTool:Win32/ExtremeInjector	high
HackTool:Win32/Gsecdump	high
HackTool:Win32/Keygen	high
HackTool:Win32/Keygen!MSR	high
HackTool:Win32/Patcher!MTB	high
HackTool:Win32/ProductKey	high
HackTool:Win32/Tnega	high
Misleading:Win32/Lodi	high
Misleading:Win32/Malgent!AMTB	high
MonitoringTool:Win32/MicTrayDebugger	severe
PWS:MSIL/Stealer!rfn	severe
Ransom:Win32/Basta!rfn	severe
Ransom:Win32/BastaLoader!rfn	severe
Ransom:Win32/Inc!rfn	severe
Ransom:Win64/Magniber!rfn	severe
Spyware:AndroidOS/Multiverze!rfn	high
Spyware:Linux/Multiverze	high
Trojan:AndroidOS/AVerseFalc!rfn	severe
Trojan:BAT/KillAV!MTB	severe
Trojan:BAT/LNK_DarkGate!rfn	severe
Trojan:BAT/Malgent!MTB	severe
Trojan:BAT/Starter.G!lnk	severe
Trojan:JS/Obfuse.PAE!MTB	severe
Trojan:JS/Redirector.POK!MTB	severe
Trojan:Linux/Multiverze	severe
Trojan:Linux/Multiverze!rfn	severe
Trojan:MSIL/Bladabindi!AMTB	severe
Trojan:MSIL/Zusy!MTB	severe
Trojan:PDF/Phish.SL!MTB	severe
Trojan:PowerShell/Malagent!MSR	severe
Trojan:PowerShell/Malgent!MSR	severe
Trojan:Python/Multiverze!rfn	severe
Trojan:Script/Malgent!MSR	severe
Trojan:Script/Multiverze!rfn	severe
Trojan:VBS/GuLoader.SNY!MTB	severe
Trojan:VBS/Qakbot!rfn	severe
Trojan:VBS/Starter.PGST!MTB	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/AutoitInject.C!MTB	severe
Trojan:Win32/BlackWidow!rfn	severe
Trojan:Win32/CoinMiner	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Etset!rfn	severe
Trojan:Win32/Fareit.VB!MTB	severe
Trojan:Win32/Fauppod!rfn	severe
Trojan:Win32/GCleaner.SOF!MTB	severe
Trojan:Win32/GULoader!MTB	severe
Trojan:Win32/Guloader.AV!MTB	severe
Trojan:Win32/GuLoader.RVV!MTB	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/LummaStealer!MTB	severe
Trojan:Win32/Malgent	severe
Trojan:Win32/Malgent!MSR	severe
Trojan:Win32/MalLoader!rfn	severe
Trojan:Win32/Neoreklami!MTB	severe
Trojan:Win32/NitrogenLdr!rfn	severe
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/Qakbot!rfn	severe
Trojan:Win32/Qbot!rfn	severe
Trojan:Win32/Seheq!rfn	severe
Trojan:Win32/Suloc!rfn	severe
Trojan:Win32/Supma.A	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/Tedy!MTB	severe
Trojan:Win32/Tedy.BAB!MTB	severe
Trojan:Win32/Vilsel!rfn	severe
Trojan:Win32/Vindor!rfn	severe
Trojan:Win32/VMProtect	severe
Trojan:Win32/VMProtect!MTB	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win32/Znyonm!rfn	severe
Trojan:Win32/Zusy!rfn	severe
Trojan:Win32/Zusy.AZS!MTB	severe
Trojan:Win64/Aotera!MTB	severe
Trojan:Win64/CryptInject!MTB	severe
Trojan:Win64/Emotetcrypt!rfn	severe
Trojan:Win64/Filesponger!AMTB	severe
Trojan:Win64/Malgent!MSR	severe
Trojan:Win64/ShellcodeRunner!MTB	severe
Trojan:Win64/Tedy!MTB	severe
Trojan:Win64/Vidar!MTB	severe
Trojan:Win64/VMProtect!MTB	severe
Trojan:Win64/Wingo!MTB	severe
Trojan:Win64/ZLoaderE!rfn	severe
Trojan:Win64/Zusy!MTB	severe
Trojan:Win64/Zusy!rfn	severe
Trojan:WinNT/Sality!rfn	severe
TrojanDownloader:JS/Qakbot!rfn	severe
TrojanDropper:PowerShell/Doprimm!rfn	severe
TrojanDropper:Win32/Malgent!MSR	severe