Change log for definition version 1.271.870.0 RSS feed icon

This page lists what has changed in the most recent definitions update for Windows Defender Antivirus and Microsoft Security Essentials.

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The following tables list the new and updated definitions for the version you select here. You can choose from the 20 latest updates, and the most recent update is shown by default:

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Definition available date: Jul 12,2018 08:33 AM UTC

New definitions

Updated definitions

HackTool:Win32/BrowserPassviewhigh
HackTool:Win32/Virledi!rfnhigh
HackTool:Win32/Virledi.Ahigh
SoftwareBundler:Win32/Dlhelperhigh
Backdoor:MSIL/Boilod.Asevere
Backdoor:MSIL/Noancooe!rfnsevere
Backdoor:MSIL/Noancooe.Asevere
Backdoor:Win32/Etumbot!rfnsevere
Backdoor:Win32/SdBot!rfnsevere
Backdoor:Win32/Simbotsevere
Backdoor:Win32/Zegostsevere
Backdoor:Win64/Drixed!rfnsevere
Ransom:Win32/GandCrab!rfnsevere
Ransom:Win32/GandCrab.AEsevere
Trojan:HTML/Brocoiner!rfnsevere
Trojan:JS/HideLink!rfnsevere
Trojan:MSIL/Ribaj!rfnsevere
Trojan:MSIL/Upadter.Asevere
Trojan:Win32/Bancteian!rfnsevere
Trojan:Win32/Bluteal!rfnsevere
Trojan:Win32/CoinMiner!bitsevere
Trojan:Win32/CoinMiner!rfnsevere
Trojan:Win32/Desurou.Asevere
Trojan:Win32/Dibizor!rfnsevere
Trojan:Win32/Emotet.AC!bitsevere
Trojan:Win32/Eqtonex!rfnsevere
Trojan:Win32/Gandcrab.AFsevere
Trojan:Win32/Genasep.Asevere
Trojan:Win32/Krilog.Asevere
Trojan:Win32/Occamy.Bsevere
Trojan:Win32/Occamy.Csevere
Trojan:Win32/Pynamer.A!acsevere
Trojan:Win32/Salgorea.C!dhasevere
Trojan:Win32/Simbot!rfnsevere
Trojan:Win32/Skeeyah.A!rfnsevere
Trojan:Win32/Suloc.Asevere
Trojan:Win32/Swrort!rfnsevere
Trojan:Win32/Tepely!rfnsevere
Trojan:Win32/Tonmyesevere
Trojan:Win64/Alureon!rfnsevere
TrojanClicker:JS/Faceliker!rfnsevere
TrojanDownloader:JS/FakejQuery!rfnsevere
TrojanDownloader:Win32/Chasendi.Asevere
TrojanDownloader:Win32/Dofoil!rfnsevere
TrojanDownloader:Win32/Dofoil.ACsevere
TrojanDownloader:Win32/Tugspay.Asevere
TrojanDownloader:Win32/Umbald!rfnsevere
TrojanDownloader:Win32/Zbot.Dsevere
TrojanDropper:Win32/Gepyssevere
TrojanDropper:Win32/Gepys!rfnsevere
TrojanProxy:Win32/Bunitu.Q!bitsevere
TrojanSpy:Win32/Nivdort!rfnsevere
VirTool:MSIL/Injectorsevere
VirTool:Win32/AutInjectsevere
Worm:Win32/Ainslot!rfnsevere
Worm:Win32/Ainslot.Asevere
Worm:Win32/Autorunsevere
Worm:Win32/Gamarue!rfnsevere
Worm:Win32/Gamarue.Nsevere
Worm:Win32/Mira.Asevere
Worm:Win32/Mofksyssevere
Worm:Win32/Mofksys!rfnsevere
Worm:Win32/Mydoom!rfnsevere
Worm:Win32/Rebhipsevere