Change logs for security intelligence update version 1.445.713.0

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

3/23/2026 7:22:19 AM

Added threat detections

Name	Severity
Phish:HTML/FakeLogin.PGAP!MTB	severe
Trojan:VBS/Pterodo.PGAM!MTB	severe
Trojan:Win32/ClipBanker.PGAP!MTB	severe
Worm:Win32/Hiupan	severe
Worm:Win32/Hiupan.A	severe
Worm:Win32/Hiupan.B	severe
Worm:Win32/Hiupan.C	severe
Worm:Win32/Hiupan.D	severe

Updated threat detections

Name	Severity
Adware:Win32/OpenSUpdater	high
Backdoor:Win32/Koceg!rfn	severe
Backdoor:Win32/Rifdoor!rfn	severe
Exploit:HTML/IframeRef.gen	severe
HackTool:Win32/Keygen	high
HackTool:Win64/CobaltStrike!rfn	high
Ransom:Win32/Clop!rfn	severe
Ransom:Win32/Conti!rfn	severe
Ransom:Win32/Somhoveran.A	severe
Ransom:Win32/WarLock!rfn	severe
Ransom:Win64/Mallox!rfn	severe
Trojan:AndroidOS/AVerseFalc!rfn	severe
Trojan:AndroidOS/Multiverze!rfn	severe
Trojan:BAT/Qakbot!rfn	severe
Trojan:BAT/XWorm.SG!MTB	severe
Trojan:HTML/Gamaredon!rfn	severe
Trojan:Linux/CoinMiner!rfn	severe
Trojan:Linux/Multiverze!rfn	severe
Trojan:Linux/SshBrute	severe
Trojan:O97M/DDownloader!rfn	severe
Trojan:PDF/Qakbot!rfn	severe
Trojan:Python/Multiverze!rfn	severe
Trojan:Script/Multiverze!rfn	severe
Trojan:VBS/Emotet!rfn	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/AutoitInject.DSK!MTB	severe
Trojan:Win32/CryptInject!rfn	severe
Trojan:Win32/DllInject!rfn	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Fauppod!rfn	severe
Trojan:Win32/Gozi!rfn	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/LummaStealer	severe
Trojan:Win32/Malgent	severe
Trojan:Win32/Malgent!MSR	severe
Trojan:Win32/MereTam!rfn	severe
Trojan:Win32/Oader!rfn	severe
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/Primarypass!rfn	severe
Trojan:Win32/Qbot!rfn	severe
Trojan:Win32/Ravartar!rfn	severe
Trojan:Win32/Rctopus	severe
Trojan:Win32/Seheq!rfn	severe
Trojan:Win32/ShortSeek!rfn	severe
Trojan:Win32/Smokeloader!rfn	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/WinGo!rfn	severe
Trojan:Win32/WinLNK!rfn	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win64/Boldbadger!rfn	severe
Trojan:Win64/BumbleBee!rfn	severe
Trojan:Win64/CobaltStrike!rfn	severe
Trojan:Win64/CryptInject!rfn	severe
Trojan:Win64/DllInject!rfn	severe
Trojan:Win64/IcedID!rfn	severe
Trojan:Win64/Kryptic!MTB	severe
Trojan:Win64/Kryptik!rfn	severe
Trojan:Win64/Malgent!MSR	severe
Trojan:Win64/RomCom!rfn	severe
Trojan:Win64/ShellcodeRunner!rfn	severe
Trojan:Win64/SystemBC!rfn	severe
Trojan:Win64/WinGoObfusc!rfn	severe
TrojanClicker:Win32/Yabector!rfn	severe
TrojanDownloader:BAT/DllInject!rfn	severe
TrojanDownloader:MSIL/Mallox!rfn	severe
TrojanDownloader:O97M/Emotet!rfn	severe
TrojanDownloader:O97M/Emotet.ARJ!MTB	severe
TrojanDownloader:PowerShell/PEDropper!rfn	severe
TrojanDownloader:Win32/Rugmi!AMTB	severe
TrojanDropper:PowerShell/Doprimm!rfn	severe
UwS:MSIL/Malgent!MSR	high
Worm:Win32/Hiupan	severe