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 1.443.222.0

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

12/19/2025 10:07:36 PM

Added threat detections

Name Severity
Trojan:PowerShell/Asyncrat.AZ!MTB severe
Trojan:VBS/Electryon.AB!MTB severe
Trojan:Win32/OffLoader.ZOI!MTB severe
Trojan:Win32/OusabanSpy.PKB!MTB severe
Trojan:Win32/OusabanSpy.PKD!MTB severe
Trojan:Win64/Necktar.A!dha severe
Trojan:Win64/Runner!AMTB severe
Trojan:Win64/SantaStealer.MDR!MTB severe
Trojan:Win64/ShellcodeRunner.CJ!MTB severe
Trojan:Win64/Vidar.RR!MTB severe

Updated threat detections

Name Severity
Adware:Win32/AdLoad high
Adware:Win32/BadJoke!AMTB high
Adware:Win32/OpenSUpdater high
Backdoor:Java/WebShell.D!dha severe
Backdoor:Win64/Vankul!rfn severe
BrowserModifier:Win32/Qiwmonk high
Exploit:Java/CVE-2014-6332 severe
Exploit:O97M/CVE-2017-11882.A severe
Exploit:Win32/CVE-2020-1054 severe
Exploit:Win32/ShellCode.A severe
HackTool:PowerShell/EmpireGetClipboardContents high
HackTool:PowerShell/Malgent!MSR high
HackTool:Python/Impacket!AMTB high
HackTool:Python/Impacket!MSR high
HackTool:Win32/AutoKMS high
HackTool:Win32/crack high
HackTool:Win32/Crack!MTB high
HackTool:Win32/Keygen high
HackTool:Win32/Patcher high
HackTool:Win32/RemoteAdmin high
HackTool:Win64/CobaltStrike!rfn high
HackTool:Win64/Meterpreter high
HackTool:Win64/Mimikatz!rfn high
Misleading:Win32/Lodi!MSR high
Ransom:Win32/Conti!rfn severe
Ransom:Win32/Genasom severe
Ransom:Win32/Play!rfn severe
Ransom:Win64/Lockbit!rfn severe
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:BAT/Qakbot!rfn severe
Trojan:HTML/Phish!MSR severe
Trojan:HTML/Qakbot!rfn severe
Trojan:JS/Malgent!MSR severe
Trojan:JS/QakbotLNK!rfn severe
Trojan:MSIL/AcrStealer!MTB severe
Trojan:MSIL/AmsiBypass!rfn severe
Trojan:MSIL/Androm!rfn severe
Trojan:MSIL/DllInject.N!MTB severe
Trojan:MSIL/Ursu!rfn severe
Trojan:PHP/Phish!MSR severe
Trojan:PowerShell/Malgent!MSR severe
Trojan:VBS/Emotet!rfn severe
Trojan:VBS/Qakbot!rfn severe
Trojan:Win32/Alevaul!rfn severe
Trojan:Win32/Bluteal!rfn severe
Trojan:Win32/Casdet!rfn severe
Trojan:Win32/Ceevee severe
Trojan:Win32/ClipBanker!MTB severe
Trojan:Win32/CryptInject!rfn severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Fanop!rfn severe
Trojan:Win32/IcedIDLNK!rfn severe
Trojan:Win32/ICLoader!rfn severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/KoiLoader!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/Malagent severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/MereTam!rfn severe
Trojan:Win32/Mimikatz!rfn severe
Trojan:Win32/Neoreblamy!MTB severe
Trojan:Win32/Neoreblamy.NPK!MTB severe
Trojan:Win32/Obfuscator!rfn severe
Trojan:Win32/Otfrem.A!MTB severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Sehyioa.A!cl severe
Trojan:Win32/ShortSeek!rfn severe
Trojan:Win32/Skeeyah!MSR severe
Trojan:Win32/Skeeyah.A!rfn severe
Trojan:Win32/SolarMark!rfn severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Tiggre!rfn severe
Trojan:Win32/Ursnif!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win32/Znyonm!rfn severe
Trojan:Win64/CryptInject!rfn severe
Trojan:Win64/IcedID!rfn severe
Trojan:Win64/KillAV!rfn severe
Trojan:Win64/Malgent!MSR severe
Trojan:Win64/OyesterLoader!rfn severe
Trojan:Win64/Oyster!rfn severe
Trojan:Win64/Qakbot!rfn severe
Trojan:Win64/TamperedChef!rfn severe
Trojan:Win64/Tedy!MTB severe
Trojan:Win64/Vidar!MTB severe
TrojanDownloader:BAT/QakBotLoader!rfn severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:JS/Qbot!rfn severe
TrojanDownloader:O97M/Emotet!rfn severe
VirTool:MSIL/Aikaantivm!rfn severe
Virus:Win32/Expiro!MTB severe