Change logs for security intelligence update version 1.449.105.0

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

4/14/2026 6:04:46 PM

Added threat detections

Name	Severity
Trojan:HTML/Redirector.AKP!MTB	severe
Trojan:Script/AutoItLoader!AMTB	severe
Trojan:Win32/Mikey.ABMK!MTB	severe

Updated threat detections

Name	Severity
Adware:AndroidOS/Callflakes	high
Adware:Win32/Tnega	high
Backdoor:JS/Chopper.M	severe
Backdoor:Linux/Dakkatoni.az!MTB	severe
Backdoor:MSIL/Bladabindi!rfn	severe
Backdoor:PHP/Remoteshell.D	severe
Backdoor:Python/Meterpreter.B	severe
Backdoor:Win32/Berbew.AA!MTB	severe
Backdoor:Win32/Nitol!rfn	severe
Exploit:HTML/Shellcode.G!MSR	severe
Exploit:JS/CVE-2020-16040.B	severe
Exploit:JS/Mult.DJ	severe
Exploit:Win32/CVE-2020-1054	severe
Exploit:Win64/2014-4113	severe
HackTool:Linux/LinPeas.A!MTB	high
HackTool:Linux/PthToolkitGen.ZZ	high
HackTool:PowerShell/Mimikatz!MTB	high
HackTool:PowerShell/Powerpuff.A	high
HackTool:PowerShell/PowerSploit.E	high
HackTool:PowerShell/PowerView!pz	high
HackTool:Python/Impacket!AMTB	high
HackTool:Python/Impacket.AL	high
HackTool:Win32/AutoKMS	high
HackTool:Win32/AutoKMS!MTB	high
HackTool:Win32/BrowserPassview!rfn	high
HackTool:Win32/Chisel.A	high
HackTool:Win32/Crack!MTB	high
HackTool:Win32/Keygen	high
HackTool:Win32/Keygen!AMTB	high
HackTool:Win32/Keygen!MSR	high
HackTool:Win32/Mailpassview!rfn	high
HackTool:Win32/Mikatz!dha	high
HackTool:Win32/Mimikatz	high
HackTool:Win32/Tnega	high
HackTool:Win64/DriverLoader!MTB	high
HackTool:Win64/Meterpreter	high
HackTool:Win64/RemoteAdmin!rfn	high
Misleading:Win32/Lodi	high
Program:Python/Multiverze	high
PWS:MSIL/Browsstl!rfn	severe
Ransom:Win64/Prince!rfn	severe
Trojan:AndroidOS/AVerseFalc!rfn	severe
Trojan:HTML/Phish!rfn	severe
Trojan:HTML/ScrInject.PLJLH!MTB	severe
Trojan:JS/Obfuse.PAP!MTB	severe
Trojan:JS/Obfuse.PAQ!MTB	severe
Trojan:JS/Obfuse.PAR!MTB	severe
Trojan:JS/Redirector.AVSB!MTB	severe
Trojan:Linux/Multiverze!rfn	severe
Trojan:Linux/Samblad.A!MTB	severe
Trojan:MacOS/Empyre.D!MTB	severe
Trojan:MacOS/Macsweeper.A!MTB	severe
Trojan:MSIL/AgentTesla!MTB	severe
Trojan:MSIL/Noon.AB!MTB	severe
Trojan:MSIL/Zusy.SXC!MTB	severe
Trojan:O97M/DDownloader!rfn	severe
Trojan:PDF/Phish!atmn	severe
Trojan:PowerShell/Agent.AKD	severe
Trojan:PowerShell/CredentialPhisher	severe
Trojan:PowerShell/Downloader.P!MTB	severe
Trojan:PowerShell/Fleisnam.E!MTB	severe
Trojan:PowerShell/Malagent!MSR	severe
Trojan:PowerShell/Malgent!MSR	severe
Trojan:PowerShell/Powersploit.L	severe
Trojan:Python/Multiverze!rfn	severe
Trojan:Script/Malgent!MSR	severe
Trojan:Script/Metasploit!MSR	severe
Trojan:SH/SAgnt!MSR	severe
Trojan:VBS/GuLoader.RBM!MTB	severe
Trojan:VBS/Qakbot!rfn	severe
Trojan:Win32/Acll!rfn	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/CryptInject	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Etset!rfn	severe
Trojan:Win32/Flystudio!MTB	severe
Trojan:Win32/GuLoader.RAQ!MTB	severe
Trojan:Win32/Hombot!MSR	severe
Trojan:Win32/Hombot.A	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/Kovter!rfn	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/Malgent	severe
Trojan:Win32/Malgent!MSR	severe
Trojan:Win32/Mamson!rfn	severe
Trojan:Win32/MereTam!rfn	severe
Trojan:Win32/OffLoader!MTB	severe
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/Qwexlafiba!rfn	severe
Trojan:Win32/Ravartar!rfn	severe
Trojan:Win32/Salgorea.SLWO!MTB	severe
Trojan:Win32/Seheq!rfn	severe
Trojan:Win32/Supma.A	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/Tiggre!rfn	severe
Trojan:Win32/Vindor!rfn	severe
Trojan:Win32/VMProtect	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win32/Znyonm!rfn	severe
Trojan:Win64/AVTamper!rfn	severe
Trojan:Win64/Barys!MTB	severe
Trojan:Win64/BumbleBee!rfn	severe
Trojan:Win64/CoinMiner!rfn	severe
Trojan:Win64/Emotetcrypt!rfn	severe
Trojan:Win64/Injector	severe
Trojan:Win64/Injector.EO	severe
Trojan:Win64/Malgent!MSR	severe
Trojan:Win64/Midie!rfn	severe
Trojan:Win64/Tedy!MTB	severe
Trojan:Win64/UACBypassExp.A!MTB	severe
Trojan:Win64/ZLoaderE!rfn	severe
Trojan:Win64/Zusy!rfn	severe
TrojanDownloader:BAT/QakBotLoader!rfn	severe
TrojanDownloader:O97M/Emotet!rfn	severe
TrojanDownloader:PowerShell/RemcosRAT!rfn	severe
TrojanDownloader:Win64/BazaarLoader!rfn	severe
TrojanDropper:HTML/Obfuse.PE!MTB	severe
TrojanDropper:PowerShell/Injector!MSR	severe
TrojanDropper:Win32/Malgent!MSR	severe
VirTool:Java/Meterpreter.A	severe
VirTool:Win32/Inoculate.A	severe
VirTool:Win32/Tabloid!MTB	severe
VirTool:Win64/CVE-2024-30085!rfn	severe
VulnerableDriver:Win64/TrueSight!AMTB	severe