Change logs for security intelligence update version 1.445.465.0

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

3/10/2026 10:06:38 PM

Added threat detections

Name	Severity
Backdoor:Win32/Nodistor.Conf	severe
Behavior:Win32/PotentialSideload.E	severe
Trojan:HTML/FakeDownload.ACW!MTB	severe
Trojan:JS/Nemucod.SJ!MTB	severe
Trojan:VBS/Obfuse.ACW!MTB	severe
Trojan:Win64/ValleyRat.ABD!MTB	severe

Updated threat detections

Name	Severity
Adware:Win32/Agent	high
Adware:Win32/Tnega	high
Backdoor:MSIL/Bladabindi!rfn	severe
Backdoor:MSIL/Sisbot!rfn	severe
Backdoor:PHP/Webshell.PA	severe
Backdoor:PHP/Webshell.S	severe
Behavior:MacOS/SuspInfoExfil.A	severe
Behavior:MacOS/SuspOsascriptExec.G	severe
Behavior:MacOS/SuspTccHyjackEx.B	severe
Behavior:Win32/Mamadut.DC	severe
Behavior:Win32/Mamadut.GB	severe
Exploit:HTML/IframeRef!rfn	severe
Exploit:HTML/Shellcode.G!MSR	severe
Exploit:Perl/CVE-2010-0738	severe
Exploit:PHP/Webshell!AMTB	severe
Exploit:Win32/CVE-2015-1701!rfn	severe
HackTool:BAT/AutoKms.S!MTB	high
HackTool:BAT/Malgent!MSR	high
HackTool:Python/Impacket.AD	high
HackTool:Win32/Activator!MTB	high
HackTool:Win32/AndroidUnlocker	high
HackTool:Win32/AutoKMS	high
HackTool:Win32/Crack!MTB	high
HackTool:Win32/Defendercontrol	high
HackTool:Win32/DllInjector!MTB	high
HackTool:Win32/Keygen	high
HackTool:Win32/Kmsactivator	high
HackTool:Win32/MeltScreen!MTB	high
HackTool:Win32/Patcher!MTB	high
HackTool:Win32/VMProtect!MTB	high
HackTool:Win64/Meterpreter	high
Misleading:Win32/Malgent!AMTB	high
Ransom:Linux/Babuk!rfn	severe
Ransom:Win32/IncRansom!rfn	severe
Ransom:Win32/Wannaren!rfn	severe
Ransom:Win64/LockBit!rfn	severe
Trojan:AndroidOS/AVerseFalc!rfn	severe
Trojan:JS/Agent	severe
Trojan:JS/Redirector.AHC!MTB	severe
Trojan:JS/Redirector.PAA!MTB	severe
Trojan:Linux/Multiverze!rfn	severe
Trojan:Linux/SAgnt!MSR	severe
Trojan:MacOS/Multiverze!rfn	severe
Trojan:MSIL/AgentTesla!rfn	severe
Trojan:MSIL/BadIIS.HAB!MTB	severe
Trojan:MSIL/Killprocess	severe
Trojan:MSIL/Malgent!MSR	severe
Trojan:PowerShell/Fleisnam.E!MTB	severe
Trojan:PowerShell/Guloader!MTB	severe
Trojan:PowerShell/Habe.A	severe
Trojan:VBS/Emotet!rfn	severe
Trojan:VBS/Qakbot!rfn	severe
Trojan:Win32/Alevaul!MSR	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/Bluteal!rfn	severe
Trojan:Win32/Convagent!MTB	severe
Trojan:Win32/CryptInject.CC	severe
Trojan:Win32/DllInject!rfn	severe
Trojan:Win32/Dynamer!ac	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Etset!rfn	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/Khalesi.RL!MTB	severe
Trojan:Win32/Leonem	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/Malagent!MSR	severe
Trojan:Win32/Malagent!rfn	severe
Trojan:Win32/Malgent	severe
Trojan:Win32/Malgent!MSR	severe
Trojan:Win32/Malgent!MTB	severe
Trojan:Win32/MalInject.A	severe
Trojan:Win32/Occamy.C38	severe
Trojan:Win32/PersistInStartupDir.A	severe
Trojan:Win32/PersistInStartupDir.B	severe
Trojan:Win32/PersistInStartupDir.C	severe
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/Qakbot!rfn	severe
Trojan:Win32/Qbot!rfn	severe
Trojan:Win32/Seheq!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:Win64/CobaltStrike!rfn	severe
Trojan:Win64/CoinMiner!rfn	severe
Trojan:Win64/CryptInject!rfn	severe
Trojan:Win64/Donut!rfn	severe
Trojan:Win64/Injector	severe
Trojan:Win64/Malgent!MSR	severe
Trojan:Win64/Oyster!rfn	severe
Trojan:Win64/Shellcoderunner!MSR	severe
Trojan:Win64/ShellcodeRunner!rfn	severe
Trojan:Win64/Tedy!MTB	severe
TrojanDownloader:JS/Qakbot!rfn	severe
TrojanDownloader:O97M/Emotet!rfn	severe
TrojanDropper:PowerShell/Injector!MSR	severe
Worm:Win32/Citeary!rfn	severe
Worm:Win32/Nuqel!rfn	severe