Change logs for security intelligence update version 1.445.196.0

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

2/22/2026 5:45:12 PM

Added threat detections

No new threat detections added in selected update

Updated threat detections

Name	Severity
Backdoor:MSIL/Bladabindi	severe
Backdoor:MSIL/Bladabindi!rfn	severe
Backdoor:MSIL/XWormRAT!rfn	severe
Exploit:Java/CVE-2014-6332	severe
Exploit:O97M/CVE-2016-7262.MB!MTB	severe
Exploit:Perl/Sadmin.A	severe
HackTool:PowerShell/PowerView	high
HackTool:Python/Impacket!MSR	high
HackTool:Python/Impacket.AR!AMTB	high
HackTool:Python/Impacket.V	high
HackTool:Win32/AutoKMS	high
HackTool:Win32/AutoKMS!MSR	high
HackTool:Win32/Keygen	high
HackTool:Win32/Patcher	high
HackTool:Win64/Mimikatz!rfn	high
Misleading:Win32/Lodi	high
PWS:Win32/Zbot!rfn	severe
Ransom:Win32/BlackCat!rfn	severe
Ransom:Win32/Clop!rfn	severe
Ransom:Win32/CylanceLoader!rfn	severe
Ransom:Win32/Helldown!rfn	severe
Ransom:Win32/LockBit!MTB	severe
Ransom:Win64/Akira!rfn	severe
Ransom:Win64/Akira.CT!MTB	severe
Ransom:Win64/Babuk!rfn	severe
Trojan:AndroidOS/AVerseFalc!rfn	severe
Trojan:BAT/LNK_DarkGate!rfn	severe
Trojan:BAT/Qakbot!rfn	severe
Trojan:HTML/Gamaredon!rfn	severe
Trojan:HTML/IcedID!rfn	severe
Trojan:JS/QakbotLNK!rfn	severe
Trojan:JS/Redirector.ABOB!MTB	severe
Trojan:Linux/Multiverze!rfn	severe
Trojan:Linux/SAgnt!MSR	severe
Trojan:MSIL/CoinMiner!rfn	severe
Trojan:MSIL/r77RootKit!rfn	severe
Trojan:O97M/DDownloader!rfn	severe
Trojan:PDF/Ursinf!rfn	severe
Trojan:PowerShell/Exploit.CVE-2021-1675.A	severe
Trojan:PowerShell/QakBot!rfn	severe
Trojan:Python/Multiverze	severe
Trojan:VBS/Emotet!rfn	severe
Trojan:VBS/Qakbot!rfn	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/Casdet!rfn	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Etset!rfn	severe
Trojan:Win32/Flystudio!MTB	severe
Trojan:Win32/GuLoader.PSL!MTB	severe
Trojan:Win32/Hitbrovi!rfn	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/Latrodectus!rfn	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/Malagent!rfn	severe
Trojan:Win32/Malgent	severe
Trojan:Win32/Malgent!MSR	severe
Trojan:Win32/Orsam!rts	high
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/Qakbot!rfn	severe
Trojan:Win32/Qbot!rfn	severe
Trojan:Win32/Seheq!rfn	severe
Trojan:Win32/Skeeyah.A!rfn	severe
Trojan:Win32/Supma.A	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/Vindor!rfn	severe
Trojan:Win32/WinLNK.DE!MTB	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win32/Znyonm!rfn	severe
Trojan:Win64/BumbleBee!rfn	severe
Trojan:Win64/CobaltStrike!rfn	severe
Trojan:Win64/CryptInject!rfn	severe
Trojan:Win64/Emotet!rfn	severe
Trojan:Win64/Emotetcrypt!rfn	severe
Trojan:Win64/EmotetPacker!rfn	severe
Trojan:Win64/FakeAV!rfn	severe
Trojan:Win64/KillAV!rfn	severe
Trojan:Win64/Latrodectus!rfn	severe
Trojan:Win64/MeshAgent!MSR	severe
Trojan:Win64/NightHawk!rfn	severe
Trojan:Win64/Oyster!rfn	severe
Trojan:Win64/RALord!rfn	severe
Trojan:Win64/Redromun.A	severe
Trojan:Win64/RomCom!rfn	severe
Trojan:Win64/Sheheq!rfn	severe
Trojan:Win64/TurtleLoader!rfn	severe
Trojan:Win64/ZLoader!rfn	severe
TrojanDownloader:BAT/QakBotLoader!rfn	severe
TrojanDownloader:JS/Qakbot!rfn	severe
TrojanDownloader:MSIL/AgentTesla.NCB!MTB	severe
TrojanDownloader:MSIL/Tnega	severe
TrojanDownloader:O97M/Emotet!rfn	severe
TrojanDownloader:O97M/EncDoc!rfn	severe
TrojanDownloader:Win32/ShortSeek!rfn	severe