Skip to main content
Skip to main content
Microsoft Security Intelligence
Cart 0 items in shopping cart
Sign in

Change logs for security intelligence update version 1.423.160.0

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.

Looking for the latest update? Download the latest update

Released on

2/28/2025 11:47:13 AM

Added threat detections

Name Severity
Phish:PDF/FakeDoc.G!MTB severe
Ransom:Win32/LockBit.AL!MTB severe
SettingsModifier:Win32/PossibleHostsFileHijack!rfn moderate
Trojan:HTML/FakeCaptcha.SS!MTB severe
Trojan:JS/Phish.SMD!MTB severe
Trojan:MSIL/Injector.BAM!MTB severe
Trojan:MSIL/Injector.CDC!MTB severe
Trojan:MSIL/LummaC.BA!MTB severe
Trojan:MSIL/Rhadamanthys.BN!MTB severe
Trojan:Win32/Azorult.BAF!MTB severe
Trojan:Win32/Fragtor.EN!MTB severe
Trojan:Win32/SpyBanker!rfn severe
Trojan:Win32/StealC.BAA!MTB severe
Trojan:Win32/Ursnif.BAB!MTB severe
Trojan:Win64/BlackWidow.UTD!MTB severe
Trojan:Win64/Stealer!rfn severe
TrojanDownloader:Win32/Ymacco.AA0F severe
TrojanDownloader:Win32/Ymacco.AA24 severe
TrojanDownloader:Win32/Ymacco.AA46 severe
TrojanDownloader:Win32/Ymacco.AA4B severe
TrojanDownloader:Win32/Ymacco.AA4E severe
TrojanDownloader:Win32/Ymacco.AA52 severe
TrojanDownloader:Win32/Ymacco.AA73 severe
TrojanDownloader:Win32/Ymacco.AA7F severe
TrojanDownloader:Win32/Ymacco.AA8E severe
TrojanDownloader:Win32/Ymacco.AA93 severe
TrojanDownloader:Win32/Ymacco.AA95 severe
TrojanDownloader:Win32/Ymacco.AA99 severe
TrojanDownloader:Win32/Ymacco.AA9E severe
TrojanDownloader:Win32/Ymacco.AAA0 severe
TrojanDownloader:Win32/Ymacco.AAA3 severe
TrojanDownloader:Win32/Ymacco.AAA5 severe
TrojanDownloader:Win32/Ymacco.AAA6 severe
TrojanDownloader:Win32/Ymacco.AAA8 severe
TrojanDownloader:Win32/Ymacco.AAB7 severe
TrojanDownloader:Win32/Ymacco.AAC0 severe
TrojanDownloader:Win32/Ymacco.AACA severe
TrojanDownloader:Win32/Ymacco.AAD2 severe
TrojanDownloader:Win32/Ymacco.AAD3 severe
TrojanDownloader:Win32/Ymacco.AAE7 severe
TrojanDownloader:Win32/Ymacco.AAF2 severe

Updated threat detections

Name Severity
Adware:Win32/Dealply!mclg high
Adware:Win32/Multiverze!rfn high
Backdoor:MSIL/Bladabindi severe
Backdoor:MSIL/Bladabindi!atmn severe
Backdoor:MSIL/Bladabindi!rfn severe
Backdoor:Win32/Berbew!pz severe
Backdoor:Win32/Berbew!rfn severe
Backdoor:Win32/Berbew.AA!MTB severe
Backdoor:Win32/Bladabindi severe
Backdoor:Win32/Farfli!pz severe
Backdoor:Win32/Hupigon.gen severe
Backdoor:Win32/Padodor!rfn severe
Backdoor:Win32/QuasarRAT.A severe
Backdoor:Win32/Venik.E!dha severe
Behavior:Win32/Mamadut.BV severe
Behavior:Win32/Mamadut.CG severe
BrowserModifier:Win32/Prifou high
BrowserModifier:Win32/Xeelyak high
DDoS:Win32/Nitol severe
DDoS:Win32/Nitol!rfn severe
HackTool:BAT/Malgent!MSR high
HackTool:Linux/Evilginx.A!MTB high
HackTool:Python/Impacket!AMTB high
HackTool:Win32/AutoKMS high
HackTool:Win32/CobaltStrike!pz high
HackTool:Win32/CobaltStrike!rfn high
HackTool:Win32/crack high
HackTool:Win32/Crack!pz high
HackTool:Win32/Crack!rfn high
HackTool:Win32/Keygen high
HackTool:Win32/Keygen!rfn high
HackTool:Win32/Malgent!MSR high
Phish:HTML/FakeLogin.SBQ!MTB severe
PWS:MSIL/RedLine.GG!MTB severe
PWS:Win32/Fareit.JK!MTB severe
PWS:Win32/Recealer.GKM!MTB severe
Ransom:Win32/Cobra!pz severe
Ransom:Win32/StopCrypt.MAPK!MTB severe
Ransom:Win32/StopCrypt.MCK!MTB severe
Ransom:Win32/StopCrypt.MGK!MTB severe
Ransom:Win32/StopCrypt.MVK!MTB severe
Ransom:Win32/StopCrypt.MYK!MTB severe
Ransom:Win32/Stopcrypt.PAE!MTB severe
Ransom:Win32/StopCrypt.PBH!MTB severe
Ransom:Win32/StopCrypt.PCC!MTB severe
Trojan:HTML/Phish!rfn severe
Trojan:HTML/Redirector.VWP!MTB severe
Trojan:JS/Malgent!MSR severe
Trojan:MSIL/AgentTesla.A!MTB severe
Trojan:MSIL/AgentTesla.AJM!MTB severe
Trojan:MSIL/AgentTesla.AMUB severe
Trojan:MSIL/Agenttesla.ARAH!MTB severe
Trojan:MSIL/AgentTesla.BAM!MTB severe
Trojan:MSIL/AgentTesla.BUV!MTB severe
Trojan:MSIL/AgentTesla.CAH!MTB severe
Trojan:MSIL/AgentTesla.CBD!MTB severe
Trojan:MSIL/AgentTesla.CDM!MTB severe
Trojan:MSIL/AgentTesla.CFB!MTB severe
Trojan:MSIL/AgentTesla.CFM!MTB severe
Trojan:MSIL/AgentTesla.CJM!MTB severe
Trojan:MSIL/AgentTesla.DLA!MTB severe
Trojan:MSIL/AgentTesla.DU!MTB severe
Trojan:MSIL/AgentTesla.EOG!MTB severe
Trojan:MSIL/AgentTesla.HDMI!MTB severe
Trojan:MSIL/AgentTesla.JBM!MTB severe
Trojan:MSIL/AgentTesla.LDA!MTB severe
Trojan:MSIL/AgentTesla.LHD!MTB severe
Trojan:MSIL/AgentTesla.NCE!MTB severe
Trojan:MSIL/AgentTesla.NCG!MTB severe
Trojan:MSIL/AgentTesla.NIQ!MTB severe
Trojan:MSIL/AgentTesla.NTR!MTB severe
Trojan:MSIL/AgentTesla.NXK!MTB severe
Trojan:MSIL/AgentTesla.SMPQ!MTB severe
Trojan:MSIL/AgentTesla.UNk!MTB severe
Trojan:MSIL/AsyncRAT severe
Trojan:MSIL/Barys!rfn severe
Trojan:MSIL/ClipBanker.DC!MTB severe
Trojan:MSIL/CoinMiner.AV!MSR severe
Trojan:MSIL/DarkCrystal.SBR!MSR severe
Trojan:MSIL/Disabler.EM!MTB severe
Trojan:MSIL/FormBook.CD!MTB severe
Trojan:MSIL/FormBook.ERW!MTB severe
Trojan:MSIL/LibeRAT.A!MTB severe
Trojan:MSIL/LimeRAT.A!MTB severe
Trojan:MSIL/LummaStealer!rfn severe
Trojan:MSIL/Mamson.CG!MTB severe
Trojan:MSIL/Masslogger.AR!MTB severe
Trojan:MSIL/Mokes.B!MTB severe
Trojan:MSIL/NanoBot!rfn severe
Trojan:MSIL/PureLogStealer!rfn severe
Trojan:MSIL/Redline.GD!MTB severe
Trojan:MSIL/Redline.GMY!MTB severe
Trojan:MSIL/RedLine.RDFI!MTB severe
Trojan:MSIL/RedLinePacker!MTB severe
Trojan:MSIL/RedLineStealer.MAG!MTB severe
Trojan:MSIL/RedlineStealer.RPY!MTB severe
Trojan:MSIL/Reline.BF!MTB severe
Trojan:MSIL/RelineStealer.FO!MTB severe
Trojan:MSIL/Remcos severe
Trojan:MSIL/Remcos!rfn severe
Trojan:MSIL/Taskun!rfn severe
Trojan:MSIL/UmbralStealer!rfn severe
Trojan:PowerShell/Powdow!rfn severe
Trojan:VBS/GuLoader.RSF!MTB severe
Trojan:VBS/GuLoader.ZCX!MTB severe
Trojan:VBS/Nemucod.NFB!MTB severe
Trojan:Win32/Adrozek!BV severe
Trojan:Win32/AgentTesla!ml severe
Trojan:Win32/Amadey severe
Trojan:Win32/Amadey!rfn severe
Trojan:Win32/Amadey.RDS!MTB severe
Trojan:Win32/ArkeiStealer.A severe
Trojan:Win32/AutoInject.CCJB!MTB severe
Trojan:Win32/AutoitInject!rfn severe
Trojan:Win32/AutoitInject.GPAA!MTB severe
Trojan:Win32/Azorult.BZ!MTB severe
Trojan:Win32/Azorult.GKM!MTB severe
Trojan:Win32/Azorult.MW!MTB severe
Trojan:Win32/Azorult.RM!MTB severe
Trojan:Win32/Azorult.RMA!MTB severe
Trojan:Win32/Azorult.RW!MTB severe
Trojan:Win32/Babatex severe
Trojan:Win32/Berbew severe
Trojan:Win32/CoinMiner severe
Trojan:Win32/CoinMiner!pz severe
Trojan:Win32/Comame!rfn severe
Trojan:Win32/CoreWarrior!rfn severe
Trojan:Win32/CryptInject!MSR severe
Trojan:Win32/CryptInject!rfn severe
Trojan:Win32/CryptInject.PN!MTB severe
Trojan:Win32/CryptInject.VDS!MTB severe
Trojan:Win32/Dynamer!ac severe
Trojan:Win32/Dynamer!dtc severe
Trojan:Win32/Ekstak.ASEH!MTB severe
Trojan:Win32/Ekstak.GZE!MTB severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Formbook!rfn severe
Trojan:Win32/Glupteba!rfn severe
Trojan:Win32/Glupteba.AMMA!MTB severe
Trojan:Win32/Glupteba.OQ!MTB severe
Trojan:Win32/Glupteba.PDR!MTB severe
Trojan:Win32/GuLoader.GKV!MTB severe
Trojan:Win32/HeavensGateShell!rfn severe
Trojan:Win32/Itsproc severe
Trojan:Win32/Katusha.RPZ!MTB severe
Trojan:Win32/Kryptik!rfn severe
Trojan:Win32/Leonem severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/LummaC severe
Trojan:Win32/Lummac!rfn severe
Trojan:Win32/LummaC.BA!MTB severe
Trojan:Win32/LummaC.BR!MTB severe
Trojan:Win32/LummaC.FAG!MTB severe
Trojan:Win32/LummaStealer.VWD!MTB severe
Trojan:Win32/Malgent!AMTB severe
Trojan:Win32/Masson.A!ac severe
Trojan:Win32/Multiverze severe
Trojan:Win32/Multiverze!rfn severe
Trojan:Win32/Nymaim.BAB!MTB severe
Trojan:Win32/Occamy.C severe
Trojan:Win32/Occamy.C0D severe
Trojan:Win32/Occamy.C0F severe
Trojan:Win32/Occamy.C14 severe
Trojan:Win32/Occamy.C1F severe
Trojan:Win32/Occamy.C20 severe
Trojan:Win32/Occamy.C23 severe
Trojan:Win32/Occamy.C28 severe
Trojan:Win32/Occamy.C3D severe
Trojan:Win32/Occamy.C50 severe
Trojan:Win32/Occamy.C57 severe
Trojan:Win32/Occamy.C59 severe
Trojan:Win32/Occamy.C5D severe
Trojan:Win32/Occamy.C64 severe
Trojan:Win32/Occamy.C7E severe
Trojan:Win32/Occamy.C86 severe
Trojan:Win32/Occamy.C88 severe
Trojan:Win32/Occamy.C8C severe
Trojan:Win32/Occamy.C8F severe
Trojan:Win32/Occamy.C93 severe
Trojan:Win32/Occamy.C9D severe
Trojan:Win32/Occamy.C9F severe
Trojan:Win32/Occamy.CA0 severe
Trojan:Win32/Occamy.CA6 severe
Trojan:Win32/Occamy.CAB severe
Trojan:Win32/Occamy.CB3 severe
Trojan:Win32/Occamy.CB5 severe
Trojan:Win32/Occamy.CB6 severe
Trojan:Win32/Occamy.CC0 severe
Trojan:Win32/Occamy.CC6 severe
Trojan:Win32/Occamy.CCA severe
Trojan:Win32/Occamy.CD1 severe
Trojan:Win32/Occamy.CDA severe
Trojan:Win32/Occamy.CDD severe
Trojan:Win32/Occamy.CDE severe
Trojan:Win32/Occamy.CE0 severe
Trojan:Win32/Occamy.CED severe
Trojan:Win32/Occamy.CF0 severe
Trojan:Win32/Occamy.CF1 severe
Trojan:Win32/Occamy.CFA severe
Trojan:Win32/Occamy.CFC severe
Trojan:Win32/OnLineGames!rfn severe
Trojan:Win32/Pasta!rfn severe
Trojan:Win32/PhishLeonem!rfn severe
Trojan:Win32/Phorpiex.KAA!MTB severe
Trojan:Win32/Qakbot.AK!MTB severe
Trojan:Win32/Qukart severe
Trojan:Win32/Qukart!rfn severe
Trojan:Win32/Raccrypt.GK!MTB severe
Trojan:Win32/Raccrypt.GT!MTB severe
Trojan:Win32/Racealer.AD!MTB severe
Trojan:Win32/Ramnit.C severe
Trojan:Win32/Redline.GEC!MTB severe
Trojan:Win32/Redline.GKF!MTB severe
Trojan:Win32/Redline.HD!MTB severe
Trojan:Win32/Redline.MD!MTB severe
Trojan:Win32/Redline.MQ!MTB severe
Trojan:Win32/RedLine.RDEQ!MTB severe
Trojan:Win32/RedlineStealer.CM!MTB severe
Trojan:Win32/Redlinestealer.UL!MTB severe
Trojan:Win32/RisePro!MTB severe
Trojan:Win32/RisePro!rfn severe
Trojan:Win32/RisePro.CCHF!MTB severe
Trojan:Win32/RisePro.HNS!MTB severe
Trojan:Win32/RisePro.RP!MTB severe
Trojan:Win32/RiseProStealer.AG!MTB severe
Trojan:Win32/RiseProStealer.CADV!MTB severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Smokeloader.GZZ!MTB severe
Trojan:Win32/Stealc!rfn severe
Trojan:Win32/Stealc.EX!MTB severe
Trojan:Win32/StealC.SHY!MTB severe
Trojan:Win32/Stealer!rfn severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Swisyn.MBHW!MTB severe
Trojan:Win32/Tiggre!rfn severe
Trojan:Win32/Tnega.NW!MTB severe
Trojan:Win32/UnusualASEP severe
Trojan:Win32/Ursnif.BAA!MTB severe
Trojan:Win32/VBClone!rfn severe
Trojan:Win32/Vundo severe
Trojan:Win32/Ymacco.ABC6 severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Zbot.BAA!MTB severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win32/Zusy!rfn severe
Trojan:Win64/BumbleBee.EM!MTB severe
Trojan:Win64/Cobaltstrike!rfn severe
Trojan:Win64/Coinminer.RB!MTB severe
Trojan:Win64/CrealStealer.AMJ!MTB severe
Trojan:Win64/OusabanSpy.PPS!MTB severe
Trojan:Win64/XMRigMiner severe
Trojan:Win64/Zusy.EM!MTB severe
Trojan:Win64/Zusy.NZ!MTB severe
TrojanDownloader:JS/Nemucod severe
TrojanDownloader:JS/Nemucod.AAQ severe
TrojanDownloader:JS/Nemucod.GU severe
TrojanDownloader:JS/Swabfex.C severe
TrojanDownloader:O97M/Emotet.TPD!MTB severe
TrojanDownloader:O97M/Obfuse.VJM!MTB severe
TrojanDownloader:Win32/Berbew severe
TrojanDownloader:Win32/Berbew!pz severe
TrojanDownloader:Win32/Berbew!rfn severe
TrojanDownloader:Win32/Glupteba!mclg severe
TrojanDownloader:Win32/Occamy.AA severe
TrojanDownloader:Win32/Rugmi.HNAF!MTB severe
TrojanDownloader:Win32/Ymacco.AA0A severe
TrojanDownloader:Win32/Ymacco.AA32 severe
TrojanDownloader:Win32/Ymacco.AA3E severe
TrojanDownloader:Win32/Ymacco.AA4C severe
TrojanDownloader:Win32/Ymacco.AA50 severe
TrojanDownloader:Win32/Ymacco.AA51 severe
TrojanDownloader:Win32/Ymacco.AA55 severe
TrojanDownloader:Win32/Ymacco.AA5A severe
TrojanDownloader:Win32/Ymacco.AA5D severe
TrojanDownloader:Win32/Ymacco.AA63 severe
TrojanDownloader:Win32/Ymacco.AA6F severe
TrojanDownloader:Win32/Ymacco.AA7D severe
TrojanDownloader:Win32/Ymacco.AA8C severe
TrojanDownloader:Win32/Ymacco.AA90 severe
TrojanDownloader:Win32/Ymacco.AA92 severe
TrojanDownloader:Win32/Ymacco.AA9D severe
TrojanDownloader:Win32/Ymacco.AAA7 severe
TrojanDownloader:Win32/Ymacco.AAAA severe
TrojanDownloader:Win32/Ymacco.AAAB severe
TrojanDownloader:Win32/Ymacco.AAAE severe
TrojanDownloader:Win32/Ymacco.AAAF severe
TrojanDownloader:Win32/Ymacco.AAB2 severe
TrojanDownloader:Win32/Ymacco.AAB6 severe
TrojanDownloader:Win32/Ymacco.AAB8 severe
TrojanDownloader:Win32/Ymacco.AABE severe
TrojanDownloader:Win32/Ymacco.AAC2 severe
TrojanDownloader:Win32/Ymacco.AAC6 severe
TrojanDownloader:Win32/Ymacco.AAD1 severe
TrojanDownloader:Win32/Ymacco.AAF7 severe
TrojanDownloader:Win32/Ymacco.AAFA severe
TrojanDownloader:Win32/Ymacco.AAFF severe
TrojanDropper:Win32/Dinwod!rfn severe
TrojanDropper:Win32/Muldrop severe
TrojanDropper:Win32/Multiverze!rfn severe
TrojanSpy:MSIL/AgentTesla.AQ!MTB severe
VirTool:MSIL/TokStomp severe
VirTool:Win32/VBInject severe
Worm:Win32/Autorun severe
Worm:Win32/Kvex.A severe
Worm:Win32/Rebhip!rfn severe