Change logs for security intelligence update version 1.435.355.0

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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Security intelligence update version

Released on

8/23/2025 6:35:29 PM

Added threat detections

Name	Severity
Trojan:PowerShell/Rhadamanthys.SS!MTB	severe
Trojan:Win64/Nekark!rfn	severe

Updated threat detections

Name	Severity
Adware:AndroidOS/Multiverze!rfn	high
Adware:Java/Multiverze!rfn	high
Adware:MSIL/BrowserAssistant	high
Adware:Win32/Agent	high
Backdoor:Linux/BPFDoor.A!MTB	severe
Backdoor:Linux/Multiverze!rfn	severe
Backdoor:PHP/Remoteshell.D	severe
Backdoor:Win32/Berbew	severe
Backdoor:Win32/Berbew!rfn	severe
Backdoor:Win32/Fynloski.A	severe
Backdoor:Win32/Padodor!rfn	severe
Backdoor:Win32/QuasarRAT.A	severe
Backdoor:Win32/Tofsee!rfn	severe
Exploit:HTML/CodeBaseExec!rfn	severe
Exploit:JS/MS09002.C	severe
HackTool:Win32/AutoKMS	high
HackTool:Win32/AutoKMS!MTB	high
HackTool:Win32/Crack!MTB	high
HackTool:Win32/Winactivator!AMTB	high
HackTool:Win64/Injector!MTB	high
Joke:AndroidOS/Multiverze!rfn	moderate
Program:AndroidOS/Multiverze!rfn	high
Program:Java/Multiverze!rfn	high
PWS:Win32/Zbot!rfn	severe
Ransom:Linux/Babuk.B!MTB	severe
Ransom:Win32/DarkSide.MFP!MTB	severe
Ransom:Win64/LockBit.TRX!MTB	severe
Spyware:AndroidOS/Multiverze!rfn	high
Tool:AndroidOS/Multiverze!rfn	moderate
Trojan:AndroidOS/AVerseFalc!rfn	severe
Trojan:AndroidOS/Multiverze!rfn	severe
Trojan:HTML/FakeUpdate.SHG!MTB	severe
Trojan:HTML/Redirector.LZC!MTB	severe
Trojan:HTML/Redirector.SDS!MTB	severe
Trojan:Linux/CoinMiner!rfn	severe
Trojan:Linux/Multiverze!rfn	severe
Trojan:MacOS/Dazzlespy.A!MTB	severe
Trojan:MacOS/Multiverze!rfn	severe
Trojan:MSIL/AgentTesla!rfn	severe
Trojan:MSIL/AsyncRAT!rfn	severe
Trojan:MSIL/ClipBanker!rfn	severe
Trojan:MSIL/Jalapeno!rfn	severe
Trojan:MSIL/LummaC!rfn	severe
Trojan:MSIL/Noon!rfn	severe
Trojan:MSIL/Quasar!rfn	severe
Trojan:MSIL/Remcos.ZLP!MTB	severe
Trojan:MSIL/Stealer!rfn	severe
Trojan:O97M/Qakbot!rfn	severe
Trojan:PowerShell/Bynoco.N!MTB	severe
Trojan:PowerShell/GuLoader.RBA!MTB	severe
Trojan:PowerShell/QakBot!rfn	severe
Trojan:Python/Multiverze!rfn	severe
Trojan:VBS/Qakbot!rfn	severe
Trojan:Win32/Alevaul!rfn	severe
Trojan:Win32/AutoitInject!rfn	severe
Trojan:Win32/Azorult!rfn	severe
Trojan:Win32/DCRat!rfn	severe
Trojan:Win32/Egairtigado!rfn	severe
Trojan:Win32/Etset!rfn	severe
Trojan:Win32/Fareit!rfn	severe
Trojan:Win32/FormBook!rfn	severe
Trojan:Win32/GCleaner!rfn	severe
Trojan:Win32/Grandoreiro.psyM!MTB	severe
Trojan:Win32/GuLoader.RBQ!MTB	severe
Trojan:Win32/InfoStealer	severe
Trojan:Win32/Kepavll!rfn	severe
Trojan:Win32/Kryptik!rfn	severe
Trojan:Win32/Leonem	severe
Trojan:Win32/Leonem!rfn	severe
Trojan:Win32/Multiverze!rfn	severe
Trojan:Win32/Neoreblamy!rfn	severe
Trojan:Win32/Nymeria!rfn	severe
Trojan:Win32/OffLoader!MTB	severe
Trojan:Win32/PhishLeonem!rfn	severe
Trojan:Win32/PlugX!rfn	severe
Trojan:Win32/Pomal!rfn	severe
Trojan:Win32/ProcessHijack!rfn	severe
Trojan:Win32/Qbot!rfn	severe
Trojan:Win32/Rasftuby!MTB	severe
Trojan:Win32/SalatStealer!rfn	severe
Trojan:Win32/Seheq!rfn	severe
Trojan:Win32/SmokeLoader!rfn	severe
Trojan:Win32/SmokeLoader.RDT!MTB	severe
Trojan:Win32/Suschil!rfn	severe
Trojan:Win32/Tedy!MTB	severe
Trojan:Win32/Tepfer!rfn	severe
Trojan:Win32/Tnega	severe
Trojan:Win32/Tnega.BK!MTB	severe
Trojan:Win32/TrickBot.CD!MTB	severe
Trojan:Win32/Ursu!MTB	severe
Trojan:Win32/Vagger!rfn	severe
Trojan:Win32/Wacatac	severe
Trojan:Win32/Ymacco!rfn	severe
Trojan:Win32/Yomal!rfn	severe
Trojan:Win32/Znyonm!rfn	severe
Trojan:Win32/Zusy!MTB	severe
Trojan:Win64/BlackWidow!MTB	severe
Trojan:Win64/Cobaltstrike!rfn	severe
Trojan:Win64/Coinminer!rfn	severe
Trojan:Win64/InfoStealer!AMTB	severe
Trojan:Win64/Jobutyve!rfn	severe
Trojan:Win64/Lazy!MTB	severe
Trojan:Win64/LummaStealer!rfn	severe
Trojan:Win64/NjRat!rfn	severe
Trojan:Win64/ShellcodeRunner!MTB	severe
Trojan:Win64/Tasker!rfn	severe
Trojan:Win64/Tedy!MTB	severe
Trojan:Win64/WinGoObfusc!rfn	severe
Trojan:WinNT/Systex!rfn	severe
TrojanDownloader:JS/AgentTesla.EDN!MTB	severe
TrojanDownloader:JS/Qakbot!rfn	severe
TrojanDownloader:O97M/Tisifi.RQ!MTB	severe
TrojanDownloader:VBS/FakeCaptcha.LZK!MTB	severe
TrojanDownloader:Win32/Upatre!rfn	severe
TrojanDropper:AndroidOS/Multiverze!rfn	severe
TrojanSpy:Win32/Banload.AAA!rfn	severe
VirTool:MSIL/Aikaantivm!rfn	severe
VirTool:MSIL/Subti	severe
VulnerableDriver:Win64/TrueSight	severe
Worm:Win32/Conficker.B	severe
Worm:Win32/Fesber!rfn	severe
Worm:Win32/Mofksys!rfn	severe