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Change logs for security intelligence update version 1.445.361.0

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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Released on

3/5/2026 4:20:30 AM

Added threat detections

Name Severity
Trojan:MSIL/GhostForm.DA!MTB severe
Trojan:PowerShell/Obfuscator.PGAI!MTB severe
Trojan:Win64/FestiveFinch.D severe
TrojanDropper:Win64/VeepLoad.A!dha severe

Updated threat detections

Name Severity
Adware:Win32/BroExt!MSR high
Exploit:Ruby/JSShell.G!MSR severe
Exploit:Win32/Tudimons.A!dha severe
HackTool:PowerShell/PowerView!pz high
HackTool:Win32/crack high
HackTool:Win32/Crack!MTB high
Misleading:Win32/Lodi high
Ransom:Win32/Genasom!rfn severe
Ransom:Win64/LockBit!rfn severe
Ransom:Win64/Ransomhub!rfn severe
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:BAT/Malgent!MSR severe
Trojan:BAT/Obfuse!MSR severe
Trojan:HTML/Redirector.SEU!MTB severe
Trojan:HTML/ScrInject.SJKP!MTB severe
Trojan:JS/Cryxos.AH!MTB severe
Trojan:JS/Redirector.POK!MTB severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MSIL/AgentTesla!rfn severe
Trojan:MSIL/Diztakun.AMEB!MTB severe
Trojan:PowerShell/Boxter!rfn severe
Trojan:PowerShell/Boxter.PGBX!MTB severe
Trojan:PowerShell/Malgent!MSR severe
Trojan:PowerShell/Obfuscator.PGAH!MTB severe
Trojan:PowerShell/Obfuscator.PGAI!MTB severe
Trojan:Python/Multiverze!rfn severe
Trojan:Script/Multiverze!rfn severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/Remcos!rfn severe
Trojan:VBS/Zusy!MTB severe
Trojan:Win32/Alevaul!rfn severe
Trojan:Win32/Bluteal.B!rfn severe
Trojan:Win32/CoreWarrior.DA!MTB severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Hombot!MSR severe
Trojan:Win32/Hombot.A severe
Trojan:Win32/ICLoader!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/Malgent!MTB severe
Trojan:Win32/Malgent!rfn severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Primarypass!rfn severe
Trojan:Win32/Qakbot!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/Tiggre!rfn severe
Trojan:Win32/WinLNK!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win64/BlackWidow!rfn severe
Trojan:Win64/CoinMiner!MTB severe
Trojan:Win64/CryptInject!rfn severe
Trojan:Win64/Donut!rfn severe
Trojan:Win64/Emotet!rfn severe
Trojan:Win64/Havoc!rfn severe
Trojan:Win64/Latrodecturs!rfn severe
Trojan:Win64/Malgent!MSR severe
Trojan:Win64/OysterLoader!rfn severe
Trojan:Win64/Rozena!rfn severe
Trojan:Win64/VulnDrv!MSR severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:VBS/Pterodo!rfn severe