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Change logs for security intelligence update version 1.459.537.0

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

10/3/2026 5:57:12 PM

Added threat detections

No new threat detections added in selected update

Updated threat detections

Name Severity
Adware:Win32/Coupons high
Backdoor:Linux/Gafgyt!rfn severe
Backdoor:Win32/Farfli!rfn severe
Backdoor:Win32/Koceg!rfn severe
Backdoor:Win64/PortStarter!rfn severe
DDoS:Linux/Multiverze!rfn severe
Exploit:O97M/CVE-2017-11882!rfn severe
HackTool:Linux/PthToolkitGen.ZZ high
HackTool:Python/Impacket!AMTB high
HackTool:Win32/Keygen high
HackTool:Win32/Meterpreter!rfn high
HackTool:Win32/PsAttack!rfn high
Program:MacOS/Multiverze!rfn high
Ransom:Win32/Filecoder!rfn severe
Ransom:Win32/Play!rfn severe
Ransom:Win64/Akira!rfn severe
Ransom:Win64/Ryuk.MKZ!MTB severe
Trojan:AndroidOS/Autopay!rfn severe
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:BAT/Alien.RV!MTB severe
Trojan:Java/Multiverze!rfn severe
Trojan:JS/IcedID!rfn severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MacOS/Multiverze!rfn severe
Trojan:PowerShell/Pterodo!rfn severe
Trojan:PowerShell/Runner.GP!MTB severe
Trojan:Python/Multiverze!rfn severe
Trojan:Script/Multiverze!rfn severe
Trojan:Script/Wacatac severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/Obfuse!rfn severe
Trojan:Win32/Casdet!rfn severe
Trojan:Win32/Coroxy!rfn severe
Trojan:Win32/CryptInject!rfn severe
Trojan:Win32/DllInject!rfn severe
Trojan:Win32/Dorv!rfn severe
Trojan:Win32/Dridex!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!rfn severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Qakbot!rfn severe
Trojan:Win32/Qbot!rfn severe
Trojan:Win32/Qwexlafiba!rfn severe
Trojan:Win32/Ravartar!rfn severe
Trojan:Win32/Rozena!rfn severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win64/BazaarLoader!rfn severe
Trojan:Win64/CobaltStrike!rfn severe
Trojan:Win64/CryptInject!rfn severe
Trojan:Win64/EmotetPacker!rfn severe
Trojan:Win64/OysterLoader!rfn severe
TrojanClicker:Win32/Doplik!rfn severe
TrojanDownloader:BAT/QakBotLoader!rfn severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDropper:Win64/KillAV.GB!MTB severe
VirTool:MSIL/AntiVm!rfn severe
Worm:Win32/Kongrid!inf severe
Worm:Win32/Mofksys!rfn severe
Worm:Win32/Nuqel!rfn severe