Change log for version 1.249.91.0 RSS feed icon

This page shows you what's changed in the most recent definitions update for Microsoft antimalware and antispyware software.

The latest update is:

  • 1.249.91.0

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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 22,2017 08:06 AM UTC

New definitions


No new threats have been identified in this definition update.

Updated definitions

BrowserModifier:Win32/Diplugemhigh
SoftwareBundler:MSIL/Wizremhigh
SoftwareBundler:Win32/Dlhelperhigh
SoftwareBundler:Win32/ICLoaderhigh
SoftwareBundler:Win32/Mizenotahigh
Trojan:Win32/Startpagehigh
HackTool:MSIL/Boilod.Amoderate
HackTool:MSIL/Boilod.Bmoderate
HackTool:MSIL/StormRATmoderate
HackTool:Win32/BrowserPassviewmoderate
HackTool:Win32/ChromePassmoderate
HackTool:Win32/Fbhackmoderate
HackTool:Win32/Gendowsmoderate
HackTool:Win32/Keygenmoderate
HackTool:Win32/PasswordFoxmoderate
Backdoor:MSIL/Aataki.AC!bitsevere
Backdoor:MSIL/Noancooe.Csevere
Backdoor:MSIL/Omaneat.Bsevere
Backdoor:MSIL/Orcusrot.Asevere
Backdoor:MSIL/Splori.Asevere
Backdoor:MSIL/Sylavriu.Asevere
Backdoor:Win32/Bergat.Asevere
Backdoor:Win32/Bezigate.Bsevere
Backdoor:Win32/Bifrosesevere
Backdoor:Win32/Blohi.Bsevere
Backdoor:Win32/Cycbot.Bsevere
Backdoor:Win32/Gaertob.Asevere
Backdoor:Win32/Jedobot.Asevere
Backdoor:Win32/Kelihossevere
Backdoor:Win32/Kelihos.Fsevere
Backdoor:Win32/NetWiredRC.Bsevere
Backdoor:Win32/NetWiredRC.Dsevere
Backdoor:Win32/Nosrawec.Asevere
Backdoor:Win32/PcClientsevere
Backdoor:Win32/Prorat.AZsevere
Backdoor:Win32/Qakbot.Tsevere
Backdoor:Win32/Rescoms.Bsevere
Backdoor:Win32/Sdbotsevere
Backdoor:Win32/Siluhdursevere
Backdoor:Win32/Simbotsevere
Backdoor:Win32/Slingup.Asevere
Backdoor:Win32/Turkojansevere
Backdoor:Win32/Turkojan.Bsevere
Backdoor:Win32/Xiclog.Asevere
Backdoor:Win32/Xtrat.Asevere
Backdoor:Win32/Xtrat.ACsevere
Backdoor:Win32/Zegostsevere
DDoS:Win32/Nitol.Bsevere
Exploit:Win32/Shellcodesevere
MonitoringTool:Win32/Ardamaxsevere
PWS:MSIL/Mintluks.Asevere
PWS:Win32/Delfsevere
PWS:Win32/Fareitsevere
PWS:Win32/Fareit.ACsevere
PWS:Win32/Fareit.AEsevere
PWS:Win32/Fignotok.Asevere
PWS:Win32/Ldpinchsevere
PWS:Win32/Primarypass.Asevere
PWS:Win32/Rugond.Asevere
PWS:Win32/Tibia.ALsevere
PWS:Win32/Zbot!GOsevere
PWS:Win32/Zbot!GOAsevere
PWS:Win32/Zbot!VMsevere
Ransom:AndroidOS/LockScreen!rfnsevere
Ransom:MSIL/JigsawLocker.Asevere
Ransom:Win32/Criakl.Dsevere
Ransom:Win32/Genasomsevere
Ransom:Win32/Isda.Asevere
Ransom:Win32/Mytreex.Asevere
Ransom:Win32/Troldesh.Asevere
Rogue:Win32/FakeSmokesevere
Rogue:Win32/FakeVimessevere
Rogue:Win32/Winwebsecsevere
Trojan:BAT/Avkillersevere
Trojan:BAT/Startpage.Gsevere
Trojan:JS/Kilim.Nsevere
Trojan:JS/Ociyota.Asevere
Trojan:MSIL/BitcoinMiner.Asevere
Trojan:MSIL/Bokytuda.A!bitsevere
Trojan:MSIL/Bokytuda.B!bitsevere
Trojan:MSIL/Nagoot.Asevere
Trojan:MSIL/Starter.Fsevere
Trojan:MSIL/Upadter.Asevere
Trojan:O97M/Madeba.A!detsevere
Trojan:Win32/Alureonsevere
Trojan:Win32/Antavmu.Dsevere
Trojan:Win32/Asacky.A!bitsevere
Trojan:Win32/Bancteian.Bsevere
Trojan:Win32/Bicone.Bsevere
Trojan:Win32/Bodime.Csevere
Trojan:Win32/Casidel.Asevere
Trojan:Win32/Ceatrg.Asevere
Trojan:Win32/CoinMinersevere
Trojan:Win32/Cortheaper.Asevere
Trojan:Win32/Dahrwam.Asevere
Trojan:Win32/Dorv.Asevere
Trojan:Win32/Dynamer!acsevere
Trojan:Win32/Dynamer!rfnsevere
Trojan:Win32/FakeSysdefsevere
Trojan:Win32/Gupdamon.Asevere
Trojan:Win32/Iflarsevere
Trojan:Win32/Koutodoor.Esevere
Trojan:Win32/Koutodoor.E.dllsevere
Trojan:Win32/Lamooc.Asevere
Trojan:Win32/Lethic.Isevere
Trojan:Win32/Matsnu.Rsevere
Trojan:Win32/Nivdort.Asevere
Trojan:Win32/Oficla.H!dllsevere
Trojan:Win32/Pariham.Asevere
Trojan:Win32/QQpasssevere
Trojan:Win32/Rebhip.AA!bitsevere
Trojan:Win32/Redosdru.Fsevere
Trojan:Win32/Rekilc.Bsevere
Trojan:Win32/Ronohu.Asevere
Trojan:Win32/Seodec.Asevere
Trojan:Win32/Simda.ATsevere
Trojan:Win32/Sirefef.Vsevere
Trojan:Win32/Skeeyah.A!rfnsevere
Trojan:Win32/Suloc.Asevere
Trojan:Win32/Swrort.Asevere
Trojan:Win32/SystemHijacksevere
Trojan:Win32/Tinba.Asevere
Trojan:Win32/Tonmyesevere
Trojan:Win32/Totbricksevere
Trojan:Win32/Vbulla.Asevere
Trojan:Win32/Vindor.Bsevere
Trojan:Win32/Vundosevere
Trojan:Win32/Wraut.Asevere
Trojan:Win32/Wraut.Bsevere
Trojan:Win32/Zonsterarch.ABsevere
Trojan:Win32/Zonsterarch.ACsevere
Trojan:Win32/Zonsterarch.BKsevere
Trojan:Win32/Zonsterarch.BWsevere
Trojan:Win32/Zonsterarch.Usevere
Trojan:Win64/Meterpreter.Asevere
Trojan:WinNT/Alureon.Hsevere
Trojan:WinREG/Startpage.Esevere
TrojanClicker:Win32/Frosparf.Dsevere
TrojanDownloader:MSIL/Genmaldow.Asevere
TrojanDownloader:Win32/Agentsevere
TrojanDownloader:Win32/Cekarsevere
TrojanDownloader:Win32/Dofoil.ACsevere
TrojanDownloader:Win32/Istbarsevere
TrojanDownloader:Win32/Kuluoz.Dsevere
TrojanDownloader:Win32/Neojit.Asevere
TrojanDownloader:Win32/Nonaco.Jsevere
TrojanDownloader:Win32/Onitab.Bsevere
TrojanDownloader:Win32/Perkeshsevere
TrojanDownloader:Win32/Pogolcil.Asevere
TrojanDownloader:Win32/Renossevere
TrojanDownloader:Win32/Silcon!rfnsevere
TrojanDownloader:Win32/Tinub.Asevere
TrojanDownloader:Win32/Tugspay.Asevere
TrojanDownloader:Win32/Unruy.Hsevere
TrojanDownloader:Win32/Unruy.Isevere
TrojanDownloader:Win32/VBsevere
TrojanDownloader:Win32/Waledac.ALsevere
TrojanDropper:MSIL/Hostwack.Asevere
TrojanDropper:Win32/Agentsevere
TrojanDropper:Win32/Gepyssevere
TrojanDropper:Win32/Microjoinsevere
TrojanDropper:Win32/Randrew.A!bitsevere
TrojanDropper:Win32/Sirefefsevere
TrojanDropper:Win32/Sirefef.Bsevere
TrojanProxy:JS/Bankersevere
TrojanProxy:Win32/Bunitu.Q!bitsevere
TrojanProxy:Win32/Malynfits.Asevere
TrojanSpy:MSIL/Crime.Bsevere
TrojanSpy:MSIL/Golroted.Bsevere
TrojanSpy:MSIL/Golroted.Esevere
TrojanSpy:MSIL/Keylogger.Bsevere
TrojanSpy:MSIL/KeyLogger.BSsevere
TrojanSpy:MSIL/Omaneat.Asevere
TrojanSpy:MSIL/Omaneat.Bsevere
TrojanSpy:MSIL/Omaneat.F!bitsevere
TrojanSpy:MSIL/Plimrost.Bsevere
TrojanSpy:MSIL/Smetssevere
TrojanSpy:MSIL/VB.Asevere
TrojanSpy:MSIL/VB.Msevere
TrojanSpy:Win32/Bankersevere
TrojanSpy:Win32/Fitin.Asevere
TrojanSpy:Win32/Flux.ADsevere
TrojanSpy:Win32/Loyeetro.Asevere
TrojanSpy:Win32/Lydrasevere
TrojanSpy:Win32/Nivdortsevere
TrojanSpy:Win32/Rebhip.C!Asevere
TrojanSpy:Win32/Setfic.Asevere
TrojanSpy:Win32/Tougle!rfnsevere
TrojanSpy:Win32/Usteal.Bsevere
VirTool:AutoIt/Obfuscator.Fsevere
VirTool:MSIL/Injectorsevere
VirTool:MSIL/ParCrypter.Asevere
VirTool:MSIL/Subti.Gsevere
VirTool:MSIL/Subti.Nsevere
VirTool:Win32/CeeInjectsevere
VirTool:Win32/DelfInjectsevere
VirTool:Win32/Injectorsevere
VirTool:Win32/VBInjectsevere
VirTool:WinNT/Rootkitdrvsevere
Worm:AutoIt/Nuqelsevere
Worm:MSIL/Ainslot.Asevere
Worm:MSIL/Rutispud.Bsevere
Worm:Win32/Ainslot.Asevere
Worm:Win32/Arhost.Asevere
Worm:Win32/Autorunsevere
Worm:Win32/Dorkbotsevere
Worm:Win32/Gamarue.AMsevere
Worm:Win32/Gamarue.ARsevere
Worm:Win32/Gamarue.AUsevere
Worm:Win32/Kufgal.Bsevere
Worm:Win32/Mofksyssevere
Worm:Win32/Nayrabotsevere
Worm:Win32/NewWormsevere
Worm:Win32/Nuqel.TAsevere
Worm:Win32/Ottol.Asevere
Worm:Win32/Phorpiex.Bsevere
Worm:Win32/Phorpiex.Wsevere
Worm:Win32/Prolacosevere
Worm:Win32/Pushbotsevere
Worm:Win32/Pykspa.Csevere
Worm:Win32/Rebhipsevere
Worm:Win32/Rebhip.Asevere
Worm:Win32/Silly_P2P.Gsevere
Worm:Win32/VBsevere