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Change logs for security intelligence update version 1.443.937.0

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

1/31/2026 11:01:13 AM

Added threat detections

No new threat detections added in selected update

Updated threat detections

Name Severity
Adware:Win32/BroExt!MSR high
Backdoor:AndroidOS/Multiverze!rfn severe
Backdoor:MSIL/Bladabindi!rfn severe
Backdoor:MSIL/Corinrat!rfn severe
Backdoor:Win64/PortStarter!rfn severe
Backdoor:Win64/Supper!rfn severe
Exploit:PHP/Webshell!AMTB severe
HackTool:Win32/Crack!MTB high
HackTool:Win32/PowerSploit!rfn high
HackTool:Win64/Passview!MSR high
Program:Linux/Multiverze!rfn high
Ransom:BAT/BitLocker!rfn severe
Ransom:Win32/ContiCrypt!rfn severe
Ransom:Win32/Filecoder!rfn severe
Ransom:Win64/Lynx!rfn severe
Ransom:Win64/Mallox!rfn severe
Spyware:AndroidOS/Multiverze!rfn high
Tool:Linux/Multiverze!rfn moderate
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:BAT/LNK_DarkGate!rfn severe
Trojan:BAT/QakbotLNK!rfn severe
Trojan:HTML/FakeAlert!MSR severe
Trojan:HTML/Phish.AUPB!MTB severe
Trojan:HTML/Phish.SLZV!MTB severe
Trojan:JS/IcedID!rfn severe
Trojan:JS/Malgent!MSR severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MSIL/BazaarLoader!rfn severe
Trojan:MSIL/CoinMiner!rfn severe
Trojan:O97M/DDownloader!rfn severe
Trojan:PowerShell/PowDown!rfn severe
Trojan:PowerShell/StealC!rfn severe
Trojan:Script/Obfuse!MSR severe
Trojan:VBA/Obfuse!MSR severe
Trojan:VBS/Emotet!rfn severe
Trojan:Win32/Alevaul!rfn severe
Trojan:Win32/Coroxy!rfn severe
Trojan:Win32/DarkGate!rfn severe
Trojan:Win32/DllInject!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Farfli!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/Qbot!rfn severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/ShortcutFileInZipExec!rfn severe
Trojan:Win32/Stealer!rfn severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Tiggre!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win64/Aotera.C!AMTB severe
Trojan:Win64/BazaarLoader!rfn severe
Trojan:Win64/BRatStealer.PGBS!MTB severe
Trojan:Win64/BruteRatel!rfn severe
Trojan:Win64/CoinMiner!rfn severe
Trojan:Win64/EmotetPacker!rfn severe
Trojan:Win64/Malgent!MSR severe
Trojan:Win64/Meterpreter!rfn severe
Trojan:Win64/Rozena!rfn severe
Trojan:Win64/SpyLoader!rfn severe
TrojanClicker:Win32/Doplik.Q severe
TrojanDownloader:JS/AgentTesla.LHK!MTB severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:O97M/Emotet!rfn severe
TrojanDownloader:Script/Malgent!MSR severe
TrojanDropper:Win32/Malgent!AMTB severe
Worm:Win32/Mofksys!rfn severe