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Change logs for security intelligence update version 1.457.19.0

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

8/5/2026 6:37:37 PM

Added threat detections

Name Severity
Exploit:O97M/CVE-2017-0199.RDT!MTB severe
Phish:HTML/Redirector.PHW!MTB severe
Phish:HTML/Redirector.PHX!MTB severe
Phish:HTML/ScrInject.PW!MTB severe
Trojan:BAT/DonutLoader.PB!MTB severe
Trojan:HTML/FakeCaptcha.AZN!MTB severe
Trojan:HTML/ScrInject.VDC!MTB severe
Trojan:MSIL/Agenttesla.WEQ!MTB severe
Trojan:MSIL/Cerbu.NZD!MTB severe
Trojan:MSIL/ClipBanker.VDC!MTB severe
Trojan:MSIL/Jaik.VD!MTB severe
Trojan:MSIL/Jaik.VDJ!MTB severe
Trojan:MSIL/SharpHound.VD!MTB severe
Trojan:PowerShell/Obfuse.DZR!MTB severe
Trojan:PowerShell/RemcosRAT.SI!ams severe
Trojan:PowerShell/XWorm.GT!ams severe
Trojan:Python/Hijack.AB!MTB severe
Trojan:Win32/ICLoader.GPKK!MTB severe
Trojan:Win32/Jaik.A!AMTB severe
Trojan:Win32/Neoreblamy.NZD!MTB severe
Trojan:Win32/Tedy.AC!AMTB severe
Trojan:Win64/Aotera.CB!MTB severe
Trojan:Win64/Jaik.VDE!MTB severe
Trojan:Win64/Jaik.VDG!MTB severe
Trojan:Win64/XenoRAT.GVA!MTB severe
Trojan:Win64/Zenpak.AYA!MTB severe
TrojanDropper:Win32/Convagent.VD!MTB severe

Updated threat detections

Name Severity
Adware:MSIL/BrowserAssistant high
Backdoor:Win32/Coroxy!rfn severe
Backdoor:Win32/Diffyndor!rfn severe
Backdoor:Win32/Konus.A severe
Backdoor:Win64/Coroxy!rfn severe
Exploit:O97M/CVE-2017-0199!rfn severe
HackTool:Win32/Crack!MTB high
HackTool:Win32/Mimikatz.gen high
HackTool:Win64/RemoteAdmin!rfn high
Program:Python/Multiverze!rfn high
PWS:Win32/Fareit!rfn severe
Ransom:MSIL/Filecoder!rfn severe
Ransom:MSIL/Killav.VD!MTB severe
Trojan:BAT/LNK_DarkGate!rfn severe
Trojan:HTML/Phish!MSR severe
Trojan:HTML/ScrInject.VDA!MTB severe
Trojan:JS/Obfuse.GPKC!MTB severe
Trojan:JS/Obfuse.GPKD!MTB severe
Trojan:JS/QakbotLNK!rfn severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MacOS/Multiverze!rfn severe
Trojan:MSIL/AgentTesla!rfn severe
Trojan:MSIL/AsyncRAT!MSR severe
Trojan:MSIL/Gcleaner!MSR severe
Trojan:O97M/DDownloader!rfn severe
Trojan:PowerShell/Obfuse!MSR severe
Trojan:PowerShell/Obfuse.DRU!MTB severe
Trojan:PowerShell/Obfuse.DTN!MTB severe
Trojan:Python/Multiverze!rfn severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/Qakbot!rfn severe
Trojan:VBS/SAgent.AZE!MTB severe
Trojan:Win32/Casdet!rfn severe
Trojan:Win32/Coroxy!rfn severe
Trojan:Win32/DllInject!MTB severe
Trojan:Win32/DllInject!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Emotet!rfn severe
Trojan:Win32/Enigmaprotector severe
Trojan:Win32/Fauppod!rfn severe
Trojan:Win32/Floxif!rfn severe
Trojan:Win32/Genasom!MSR severe
Trojan:Win32/GuLoader!rfn severe
Trojan:Win32/GuLoader.PSL!MTB 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/Mint!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Pterodo!MTB severe
Trojan:Win32/PureRat!rfn severe
Trojan:Win32/Qakbot!rfn severe
Trojan:Win32/Qwexlafiba!rfn severe
Trojan:Win32/Ravartar!rfn severe
Trojan:Win32/Redcap!rfn severe
Trojan:Win32/Runner.HB!MTB severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/ShortSeek!rfn severe
Trojan:Win32/Suloc!rfn severe
Trojan:Win32/Supma.A severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Swrort.A severe
Trojan:Win32/Tiggre!rfn severe
Trojan:Win32/Tnega.BK!MTB severe
Trojan:Win32/WinLNK!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win64/Amadey!MTB severe
Trojan:Win64/Amadey.SEU!MTB severe
Trojan:Win64/CobaltStrike!rfn severe
Trojan:Win64/DLLHijack!rfn severe
Trojan:Win64/Emotetcrypt!rfn severe
Trojan:Win64/InfoStealer!MTB severe
Trojan:Win64/Tedy!MTB severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:JS/RemcosRAT.SH!MTB severe
TrojanDownloader:O97M/Donoff!rfn severe
TrojanDownloader:O97M/Emotet!rfn severe
TrojanDownloader:O97M/Emotet.RK!MTB severe
TrojanDownloader:O97M/IcedID!rfn severe
TrojanDownloader:Win32/Penguish!rfn severe
TrojanSpy:Win32/Delf severe
Worm:Win32/AutoRun!rfn severe