Change logs for security intelligence update version 1.333.1292.0

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

3/26/2021 12:58:30 AM

Added threat detections

Name	Severity
Backdoor:ASP/TwoFaceVar.D	severe
Backdoor:MSIL/Dopop.A	severe
Backdoor:MSIL/TwoFaceVar.D	severe
Backdoor:Win32/CobaltStrike.AZ	severe
Program:Win32/Ymacco.AA85	high
Trojan:JS/PowerShell.Reflection	severe
Trojan:Win32/Eqtonex.SA!MTB	severe
Trojan:Win32/IcedId.SB!MTB	severe
Trojan:Win32/Mokes.RTH!MTB	severe
TrojanDownloader:O97M/EncDoc.SPK!MTB	severe
TrojanDownloader:O97M/IcedID.PNL!MTB	severe
TrojanDownloader:O97M/IcedID.RVJ!MTB	severe
TrojanDownloader:O97M/IcedID.RVK!MTB	severe

Updated threat detections

Name	Severity
Backdoor:MSIL/Bladabindi	severe
Backdoor:Win32/FlyAgent.F	severe
Backdoor:Win32/Kirts.A	severe
Backdoor:Win32/Predator.J!rfn	severe
Backdoor:Win32/Tofsee.T	severe
Backdoor:Win32/Ursap!rfn	severe
Behavior:Win32/MZPEMemoryArtifacts.C	severe
Behavior:Win32/SmsTimeoutNoScans.A	severe
BrowserModifier:Win32/Foxiebro	high
BrowserModifier:Win32/Webalta	high
Exploit:O97M/CVE-2017-0199.BEK!MTB	severe
Exploit:O97M/CVE-2017-0199.BKS!MTB	severe
Exploit:O97M/CVE-2017-11882!MTB	severe
Exploit:O97M/CVE-2017-11882!rfn	severe
HackTool:Win32/AutoKMS	high
HackTool:Win32/AutoKMS!rfn	high
HackTool:Win32/Keygen	high
HackTool:Win32/LaZagne!rfn	high
HackTool:Win32/NetCat	high
HackTool:Win32/Virledi!rfn	high
HackTool:Win32/Virledi.A	high
Program:Win32/Ymacco.AA25	high
Program:Win32/Ymacco.AA44	high
Program:Win32/Ymacco.AA72	high
PWS:Win32/Lmir!rfn	severe
PWS:Win32/Vidar	severe
PWS:Win32/Zbot	severe
Ransom:MacOS/Filecoder	severe
Ransom:MSIL/Gorf	severe
Ransom:Win32/Ako	severe
Ransom:Win32/Avaddon	severe
Ransom:Win32/Blocker	severe
Ransom:Win32/Cobra	severe
Ransom:Win32/Ergop	severe
Ransom:Win32/Genasom	severe
Ransom:Win32/Globeimposter	severe
Ransom:Win32/LockBit	severe
Ransom:Win32/STOP	severe
SoftwareBundler:Win32/Prepscram	high
SupportScam:JS/TechBrolo!rfn	severe
Trojan:HTML/Phish.PH!MTB	severe
Trojan:Java/Jrat!rfn	severe
Trojan:Java/Tnega.AV!MTB	severe
Trojan:MSIL/AgentTesla!MTB	severe
Trojan:MSIL/AgentTesla.BK!MTB	severe
Trojan:MSIL/AgentTesla.M!MTB	severe
Trojan:MSIL/AgentTesla.MB!MSR	severe
Trojan:MSIL/AntiWD.YA!rfn	severe
Trojan:MSIL/Cryptor	severe
Trojan:MSIL/FormBook.BK!MTB	severe
Trojan:MSIL/Stealer.BK!MTB	severe
Trojan:MSIL/Tnega.BK!MTB	severe
Trojan:O97M/Obfuse!rfn	severe
Trojan:PDF/Phish!MSR	severe
Trojan:Script/Phonzy.A!ml	severe
Trojan:Win32/Adrozek!BV	severe
Trojan:Win32/Ashify.J!ibt	severe
Trojan:Win32/Ashify.J!rfn	severe
Trojan:Win32/AutoItinject!ibt	severe
Trojan:Win32/Azorult.FW!rfn	severe
Trojan:Win32/Bazarldr.MB!MSR	severe
Trojan:Win32/Bluteal!rfn	severe
Trojan:Win32/Bluteal.B!rfn	severe
Trojan:Win32/Casdet!rfn	severe
Trojan:Win32/CoinMiner.OR!rfn	severe
Trojan:Win32/CryptInject	severe
Trojan:Win32/DefenseEvasion!rfn	severe
Trojan:Win32/Dofoil.STA	severe
Trojan:Win32/Dynamer!ac	severe
Trojan:Win32/Dynamer!rfn	severe
Trojan:Win32/Emotet	severe
Trojan:Win32/Emotet!ibt	severe
Trojan:Win32/Emotet.AC!rfn	severe
Trojan:Win32/Emotet.ARJ!rfn	severe
Trojan:Win32/Emotet.DHF!rfn	severe
Trojan:Win32/Execution!rfn	severe
Trojan:Win32/Gandcrab.AF	severe
Trojan:Win32/Generic!rfn	severe
Trojan:Win32/Glupteba!atmn	severe
Trojan:Win32/Glupteba.D!rfn	severe
Trojan:Win32/Glupteba.MO!rfn	severe
Trojan:Win32/InitialAccess!rfn	severe
Trojan:Win32/IRCBot.RTU!MTB	severe
Trojan:Win32/Masson.A!ac	severe
Trojan:Win32/Masson.A!rfn	severe
Trojan:Win32/Mokes.RM!MTB	severe
Trojan:Win32/Molock.B	severe
Trojan:Win32/Neop!rfn	severe
Trojan:Win32/Occamy.A	severe
Trojan:Win32/Occamy.AA	severe
Trojan:Win32/Occamy.AB	severe
Trojan:Win32/Occamy.B	severe
Trojan:Win32/Occamy.C	severe
Trojan:Win32/Occamy.CB4	severe
Trojan:Win32/Pynamer.A!ac	severe
Trojan:Win32/Pynamer.A!rfn	severe
Trojan:Win32/Ramnit.C	severe
Trojan:Win32/RanumBot!MSR	severe
Trojan:Win32/Skeeyah.A!rfn	severe
Trojan:Win32/SpyNoon.SS!MTB	severe
Trojan:Win32/Tnega!ml	severe
Trojan:Win32/Trickbot!Core	severe
Trojan:Win32/TrickBot.I	severe
Trojan:Win32/Wrokni.C	severe
Trojan:Win32/Ymacco.AA05	severe
Trojan:Win32/Ymacco.AA0B	severe
Trojan:Win32/Ymacco.AA16	severe
Trojan:Win32/Ymacco.AA19	severe
Trojan:Win32/Ymacco.AA40	severe
Trojan:Win32/Ymacco.AA75	severe
Trojan:Win32/Ymacco.AA7B	severe
Trojan:Win32/Ymacco.AA81	severe
Trojan:Win32/Ymacco.AA90	severe
Trojan:Win32/Ymacco.AAAF	severe
Trojan:Win32/Ymacco.AAC3	severe
Trojan:Win32/Ymacco.AAEA	severe
Trojan:Win32/Ymacco.AB13	severe
Trojan:Win32/Ymacco.AB39	severe
Trojan:Win32/Ymacco.AB56	severe
Trojan:Win32/Ymacco.AB6D	severe
Trojan:Win32/Ymacco.AB9B	severe
Trojan:Win32/Ymacco.ABD8	severe
Trojan:WinNT/Hookmoot	severe
TrojanDownloader:JS/Nemucod!rfn	severe
TrojanDownloader:O97M/Dornoe.A!rfn	severe
TrojanDownloader:O97M/Emotet.PEC!MTB	severe
TrojanDownloader:O97M/EncDoc.BK!MTB	severe
TrojanDownloader:O97M/Xdoc.YB	severe
TrojanDownloader:O97M/Zloader.BDK!MTB	severe
TrojanDownloader:O97M/ZLoader.SS!MTB	severe
TrojanDownloader:Win32/Banload	severe
TrojanDownloader:Win32/Banload!rfn	severe
TrojanDownloader:Win32/Dimegup.A	severe
TrojanDownloader:Win32/Troxen!rts	high
TrojanDownloader:Win32/Zurgop.MB!MSR	severe
TrojanDropper:Win32/Woozlist.B	severe
TrojanSpy:MSIL/AgentTesla.BK!MTB	severe
VirTool:MSIL/CryptInject	severe
VirTool:MSIL/Injector	severe
VirTool:MSIL/Loksec!rfn	severe
VirTool:Win32/CeeInject.ANO!rfn	severe
VirTool:Win32/Ymacco.AA78	severe
VirTool:Win64/Atosev.A	severe
VirTool:Win64/CobaltStrike.A	severe
Worm:Win32/Copali.B	severe
Worm:Win32/Dorkbot	severe
Worm:Win32/Hamweq.A	severe
Worm:Win32/Lefgroo.A	severe
Worm:Win32/Lightmoon	severe
Worm:Win32/Mocmex	severe
Worm:Win32/Nuqel!rfn	severe
Worm:Win32/Phorpiex	severe