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Change logs for security intelligence update version 1.431.796.0

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

7/21/2025 4:31:56 PM

Added threat detections

Name Severity
Trojan:MSIL/Shelpak.BAA!MTB severe
Trojan:PowerShell/Amadey.BA!MTB severe
Trojan:VBS/Crysan.BC!MTB severe
Trojan:Win32/Dapato.BAC!MTB severe
Trojan:Win32/Limpid.BAA!MTB severe
Trojan:Win32/LummaStealer.FAJ!MTB severe
Trojan:Win32/RedLineStealer.BAA!MTB severe
Trojan:Win32/WinLNK.BAJ!MTB severe

Updated threat detections

Name Severity
Adware:AndroidOS/Multiverze!rfn high
Adware:Win32/Multiverze!rfn high
Backdoor:AndroidOS/Multiverze!rfn severe
Backdoor:Linux/Mirai.AP!xp severe
Backdoor:MSIL/Bladabindi!rfn severe
Backdoor:Win32/Berbew severe
Backdoor:Win32/Berbew!rfn severe
Backdoor:Win32/DCRAT!rfn severe
Backdoor:Win32/Hupigon!AMTB severe
Backdoor:Win32/Multiverze!rfn severe
Backdoor:Win32/Padodor!rfn severe
Behavior:Win64/SneakyGrunt.A!sms severe
Exploit:O97M/CVE-2017-11882.VRP!MTB severe
Exploit:Win64/Sandsquarev!rfn severe
HackTool:AndroidOS/Multiverze!rfn high
HackTool:BAT/AutoKMS!rfn high
HackTool:Python/Empire.D!MTB high
HackTool:Win32/AndroidUnlocker high
HackTool:Win32/crack high
HackTool:Win32/Crack!MTB high
HackTool:Win32/Crack!rfn high
HackTool:Win32/IPScan.A high
HackTool:Win32/Keygen high
HackTool:Win32/Lsassdump!rfn high
HackTool:Win32/Mikatz!dha high
Program:AndroidOS/Multiverze!rfn high
Program:Win32/Uwamson.A!ml high
PWS:Win32/VB!rfn severe
Ransom:Win32/Crowti.A severe
Ransom:Win32/GandCrab!rfn severe
Ransom:Win32/MoneyMessage.MK!MTB severe
Ransom:Win64/Hive.ZZ severe
Spyware:AndroidOS/Multiverze!rfn high
SupportScam:Win32/Screcwon!AMTB severe
Tool:Linux/Multiverze!rfn moderate
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:AndroidOS/Multiverze!rfn severe
Trojan:BAT/DestinyStealer.SA!MTB severe
Trojan:BAT/XWorm.BAB!MTB severe
Trojan:HTML/Phish.AFAB!MTB severe
Trojan:HTML/Redirector!MTB severe
Trojan:Linux/Multiverze!rfn severe
Trojan:MacOS/Multiverze!rfn severe
Trojan:MSIL/AgentTesla.NFR!MTB severe
Trojan:MSIL/AgentTesla.RAI!MTB severe
Trojan:MSIL/AgentTesla.VG!MTB severe
Trojan:MSIL/AsyncRAT!rfn severe
Trojan:MSIL/FormBook!rfn severe
Trojan:MSIL/Jalapeno.BAE!MTB severe
Trojan:MSIL/Jalapeno.BAF!MTB severe
Trojan:MSIL/Lazy!rfn severe
Trojan:MSIL/PureLogStealer!MTB severe
Trojan:MSIL/ShellcodeRunner.BAA!MTB severe
Trojan:MSIL/Shelpak.BAA!MTB severe
Trojan:MSIL/SnakeLogger!rfn severe
Trojan:O97M/Madeba.A!rfn severe
Trojan:O97M/Obfuse.CP severe
Trojan:PHP/Malgent!MSR severe
Trojan:PowerShell/Powersploit.A!MTB severe
Trojan:Python/Multiverze!rfn severe
Trojan:Script/CoinMiner!rfn severe
Trojan:Script/Multiverze!rfn severe
Trojan:Win32/Alevaul!rfn severe
Trojan:Win32/AutoitInject!rfn severe
Trojan:Win32/AutoitInject.ATZA!MTB severe
Trojan:Win32/Azorult!rfn severe
Trojan:Win32/Bluteal!rfn severe
Trojan:Win32/CobaltStrike!rfn severe
Trojan:Win32/CryptInject!rfn severe
Trojan:Win32/Dynamer!ac severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/FormBook.RVD!MTB severe
Trojan:Win32/Gh0stRat!rfn severe
Trojan:Win32/GULoader!MTB severe
Trojan:Win32/GuLoader!rfn severe
Trojan:Win32/GuLoader.GOS!MTB severe
Trojan:Win32/GuLoader.NSE!MTB severe
Trojan:Win32/GuLoader.RBC!MTB severe
Trojan:Win32/Injector!MSR severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/LummaStealer severe
Trojan:Win32/LummaStealer!rfn severe
Trojan:Win32/LummaStealerThemida!rfn severe
Trojan:Win32/Makoob!MTB severe
Trojan:Win32/Makoob!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/MalUri!rfn severe
Trojan:Win32/MarsStealer!rfn severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/Multiverze!rfn severe
Trojan:Win32/Neoreblamy!rfn severe
Trojan:Win32/NetWire!rfn severe
Trojan:Win32/Occamy.C5C severe
Trojan:Win32/PlugX!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Qadars.C!bit severe
Trojan:Win32/Qukart!rfn severe
Trojan:Win32/Ramsay.DA!MTB severe
Trojan:Win32/Reconyc!rfn severe
Trojan:Win32/RemcosLNK!rfn severe
Trojan:Win32/SalatStealer!rfn severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Speesipro.A severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Swisyn!rfn severe
Trojan:Win32/Tecabans.ST severe
Trojan:Win32/Vilsel!rfn severe
Trojan:Win32/Wacatac severe
Trojan:Win32/WinLNK.BAJ!MTB severe
Trojan:Win32/WinLNK.KAY!MTB severe
Trojan:Win32/WinLNK.THM!MTB severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Zenapak.CCDI!MTB severe
Trojan:Win64/Coinminer!rfn severe
Trojan:Win64/DisguisedXMRigMiner!rfn severe
Trojan:Win64/Grandoreiro!rfn severe
Trojan:Win64/Lazy!rfn severe
Trojan:Win64/LummaStealer!rfn severe
Trojan:Win64/Malgent!AMTB severe
Trojan:Win64/Midie.AHC!MTB severe
Trojan:Win64/SpyLoader!rfn severe
TrojanDownloader:BAT/FakeCaptcha.VYV!MTB severe
TrojanDownloader:BAT/LummaStealer.LAO!MTB severe
TrojanDownloader:MSIL/AgentTesla.NCB!MTB severe
TrojanDownloader:MSIL/AsyncRat!rfn severe
TrojanDownloader:O97M/EncDoc!rfn severe
TrojanDownloader:Win32/Kaswa.A!dha severe
TrojanDownloader:Win32/Nemucod!rfn severe
TrojanDownloader:Win32/Small!rfn severe
TrojanDropper:AndroidOS/Multiverze!rfn severe
TrojanDropper:Win32/Muldrop!rfn severe
TrojanDropper:Win32/Systex!rfn severe
TrojanSpy:Win32/Banker!rfn severe
VirTool:MSIL/CezAbuz.A severe
VirTool:MSIL/DumpLsass.A severe
VirTool:MSIL/SharpDoor!rfn severe
VirTool:Script/Covent.C severe
VirTool:Win32/VMProtect!rfn severe
Worm:MSIL/Mofin!rfn severe
Worm:Win32/Autorun!rfn severe
Worm:Win32/Fesber!rfn severe
Worm:Win32/Mofksys!rfn severe
Worm:Win32/Soltern!rfn severe