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Change logs for security intelligence update version 1.431.54.0

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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Released on

6/16/2025 12:23:22 PM

Added threat detections

Name Severity
Trojan:HTML/FraudLoad.BAJ!MTB severe
Trojan:HTML/Redirector.SNH!MTB severe
Trojan:HTML/Redirector.ZZY!MTB severe
Trojan:Win32/Vidar.BH!MTB severe

Updated threat detections

Name Severity
Backdoor:JS/Relvelshe.A severe
Backdoor:Linux/BPFDoor!rfn severe
Backdoor:Linux/Mirai.EF!MTB severe
Backdoor:Linux/Multiverze!rfn severe
Backdoor:MSIL/DCRat!rfn severe
Backdoor:PHP/Chopper.C!dha severe
Backdoor:PHP/Perhetshell.A!dha severe
Backdoor:PHP/Perhetshell.B!dha severe
Backdoor:PHP/Remoteshell.A severe
Backdoor:PHP/Remoteshell.C severe
Backdoor:PHP/Remoteshell.E severe
Backdoor:PHP/Remoteshell.V severe
Backdoor:Win32/Berbew severe
Backdoor:Win32/Berbew!rfn severe
Backdoor:Win32/Padodor!rfn severe
BrowserModifier:Win32/MediaArena high
Exploit:HTML/Shellcode!rfn severe
Exploit:HTML/Shellcode.G severe
Exploit:HTML/Shellcode.G!MSR severe
Exploit:JS/CVE-2020-16040.B severe
Exploit:JS/Mult.BG severe
Exploit:JS/ShellCode!MSR severe
Exploit:Linux/DirtyPipe.A severe
Exploit:Linux/EDB-40049.A!xp severe
Exploit:MacOS/DirtyCow.E!MTB severe
Exploit:MacOS/Vortex.H!MTB severe
Exploit:Win32/CVE-2020-1054 severe
Exploit:Win32/Pdfjsc.DB severe
HackTool:Linux/Prtscan.A!MTB high
HackTool:PowerShell/BloodHound high
HackTool:PowerShell/Mimikatz!MTB high
HackTool:PowerShell/Powersploit high
HackTool:PowerShell/PowerSploit.E high
HackTool:PowerShell/PowerSploit.RL!MTB high
HackTool:PowerShell/Spritz high
HackTool:Python/Impacket high
HackTool:Python/Impacket!MSR high
HackTool:Python/Impacket!MTB high
HackTool:Python/Impacket!rfn high
HackTool:Python/Impacket.B high
HackTool:Python/LsassDump!MSR high
HackTool:Python/Pourri.A!MTB high
HackTool:Python/Pourri.B!MTB high
HackTool:Python/Pypykatz!MSR high
HackTool:Python/Pypykatz.SA high
HackTool:Win32/AutoKMS high
HackTool:Win32/Gsecdump high
HackTool:Win32/Mikatz!dha high
HackTool:Win32/PDump.A high
HackTool:Win32/PowersploitHijack.A!dll high
HackTool:Win64/Meterpreter.A!dll high
HackTool:Win64/Mikatz!dha high
HackTool:Win64/PowersploitHijack.A!dll high
Joke:VBS/Trier.A moderate
Misleading:Win32/Lodi high
Ransom:Win32/AvosLocker.MBK!MTB severe
Ransom:Win32/BastaCrypt.PA!MTB severe
Ransom:Win32/BastaCrypt.PB!MTB severe
Ransom:Win32/Tovicrypt!rfn severe
Ransom:Win64/Akira.CT!MTB severe
Trojan:AndroidOS/AVerseFalc!rfn severe
Trojan:AndroidOS/Pandora.R severe
Trojan:AndroidOS/Triada.E severe
Trojan:HTML/FraudLoad!MTB severe
Trojan:HTML/Redirector.TZY!MTB severe
Trojan:JS/Redirector.BAC!MTB severe
Trojan:Linux/Flooder.B!MTB severe
Trojan:Linux/Multiverze!rfn severe
Trojan:Linux/Samblad.A!MTB severe
Trojan:Linux/Smbpayload severe
Trojan:MacOS/Empyre.B!MTB severe
Trojan:MacOS/Multiverze!rfn severe
Trojan:MacOS/Rakkotonak.A severe
Trojan:MSIL/AgentTesla!MTB severe
Trojan:MSIL/AgentTesla.RAD!MTB severe
Trojan:MSIL/AsyncRAT!rfn severe
Trojan:MSIL/AsyncRAT.AO!MTB severe
Trojan:MSIL/CryptInject!rfn severe
Trojan:MSIL/RevengeRAT.E!MTB severe
Trojan:MSIL/XWorm!atmn severe
Trojan:MSIL/Xworm!MTB severe
Trojan:PowerShell/Agent.AKD severe
Trojan:PowerShell/Boxter!MTB severe
Trojan:PowerShell/Fleisnam.E!MTB severe
Trojan:PowerShell/Malgent!MSR severe
Trojan:PowerShell/Powersploit.A severe
Trojan:PowerShell/Powersploit.J severe
Trojan:PowerShell/ReverseShell.SA severe
Trojan:PowerShell/Scoures.A!MTB severe
Trojan:Python/Multiverze!rfn severe
Trojan:Script/Malgent!MSR severe
Trojan:Win32/Antavmu!rfn severe
Trojan:Win32/AutoIT severe
Trojan:Win32/AutoitInject!rfn severe
Trojan:Win32/Ceevee severe
Trojan:Win32/Cerber!rfn severe
Trojan:Win32/CryptInject!rfn severe
Trojan:Win32/DarkGate!rfn severe
Trojan:Win32/Dynamer!ac severe
Trojan:Win32/Egairtigado!rfn severe
Trojan:Win32/Etset!rfn severe
Trojan:Win32/Expiro!MTB severe
Trojan:Win32/Fareit!rfn severe
Trojan:Win32/GuLoader!rfn severe
Trojan:Win32/GuLoader.GMD!MTB severe
Trojan:Win32/GuLoader.GNK!MTB severe
Trojan:Win32/GuLoader.KPOE!MTB severe
Trojan:Win32/GuLoader.PSI!MTB severe
Trojan:Win32/Kepavll!rfn severe
Trojan:Win32/Klogger severe
Trojan:Win32/Kryptik!rfn severe
Trojan:Win32/Leonem!rfn severe
Trojan:Win32/LummaStealer!rfn severe
Trojan:Win32/Malgent severe
Trojan:Win32/Malgent!MSR severe
Trojan:Win32/Malgent!MTB severe
Trojan:Win32/Mofksys!rfn severe
Trojan:Win32/Multiverze!rfn severe
Trojan:Win32/PhishLeonem!rfn severe
Trojan:Win32/PlugX!rfn severe
Trojan:Win32/Pomal!rfn severe
Trojan:Win32/Primarypass!rfn severe
Trojan:Win32/Qakbot!rfn severe
Trojan:Win32/Qukart!rfn severe
Trojan:Win32/Rimod!rfn severe
Trojan:Win32/Seheq!rfn severe
Trojan:Win32/Skeeyah.A!MTB severe
Trojan:Win32/Suschil!rfn severe
Trojan:Win32/Swisyn!rfn severe
Trojan:Win32/Swrort.AB!MTB severe
Trojan:Win32/Vidar!rfn severe
Trojan:Win32/Yomal!rfn severe
Trojan:Win64/CobaltStrike.ZM!MTB severe
Trojan:Win64/DisguisedXMRigMiner severe
Trojan:Win64/DLLHijack!MTB severe
Trojan:Win64/Emotet!rfn severe
Trojan:Win64/Emotet.EK!MTB severe
Trojan:Win64/Latrodectus!MTB severe
Trojan:Win64/Latrodectus!rfn severe
Trojan:Win64/Lazy!rfn severe
Trojan:Win64/LummaStealer.RH!MTB severe
Trojan:Win64/Malgent!MSR severe
Trojan:Win64/Qakbot!rfn severe
Trojan:Win64/Tedy!MTB severe
TrojanDownloader:BAT/WinLNK!MSR severe
TrojanDownloader:HTML/Adodb.gen!A severe
TrojanDownloader:JS/Qakbot!rfn severe
TrojanDownloader:Win32/Berbew!rfn severe
TrojanDownloader:Win32/Gippers severe
TrojanDownloader:Win32/Upatre!rfn severe
TrojanDownloader:X97M/Donoff severe
TrojanDropper:PowerShell/Injector!MSR severe
TrojanDropper:PowerShell/PowerSploit.S!MSR severe
TrojanDropper:Win32/VB!rfn severe
TrojanSpy:Win32/Keylogger!rfn severe
VirTool:Java/Meterpreter.A severe
VirTool:MSIL/Aikaantivm!rfn severe
VirTool:PHP/Meterpreter.A!MTB severe
VirTool:Win32/DelfInject.gen!CP severe
Worm:Win32/Autorun.JN!inf severe
Worm:Win32/Mofksys!rfn severe
Worm:Win32/Soltern!rfn severe