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Trojan.Siggen31.49776
Added to the Dr.Web virus database:
2025-08-14
Virus description added:
2025-08-15
Technical Information
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -Command "Add-MpPreference -ExclusionPath '%LOCALAPPDATA%\Temp'"
Launches a large number of processes
Injects code into
the following user processes:
Modifies file system
Creates the following files
%TEMP%\adsfqewr_72o7x70nlu2.ps1
%TEMP%\pcc8dwcyyl.ps1
%TEMP%\u5fcfvt2\u5fcfvt2.0.cs
%TEMP%\u5fcfvt2\u5fcfvt2.cmdline
%TEMP%\u5fcfvt2\u5fcfvt2.out
%TEMP%\u5fcfvt2\csc2cef772b858b41cd847ce39623e09ded.tmp
%TEMP%\res6405.tmp
%TEMP%\u5fcfvt2\u5fcfvt2.dll
nul
%TEMP%\d1ge\sql-wasm.wasm
%TEMP%\d1ge\shellmanager.exe
%TEMP%\d1ge\launcher.exe
Deletes the following files
Network activity
Connects to
'gi##ub.com':443
're#########ets.githubusercontent.com':443
TCP
Other
'gi##ub.com':443
're#########ets.githubusercontent.com':443
UDP
DNS ASK gi##ub.com
DNS ASK re#########ets.githubusercontent.com
Miscellaneous
Creates and executes the following
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -File "%TEMP%\PCc8dWcYYl.ps1"
'%TEMP%\d1ge\launcher.exe' --doge
'%TEMP%\d1ge\shellmanager.exe'
Executes the following
'<SYSTEM32>\cmd.exe' /d /s /c "<SYSTEM32>\REG.exe QUERY HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography /v MachineGuid"
'<SYSTEM32>\reg.exe' QUERY HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography /v MachineGuid
'<SYSTEM32>\cmd.exe' /d /s /c "tasklist"
'<SYSTEM32>\tasklist.exe'
'<SYSTEM32>\cmd.exe' /d /s /c "powershell "try { (Get-Process -Id 4276).Path } catch { '' }""
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' "try { (Get-Process -Id 4276).Path } catch { '' }"
'<SYSTEM32>\cmd.exe' /d /s /c "powershell.exe -ExecutionPolicy Bypass -File "%TEMP%\PCc8dWcYYl.ps1""
'%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\u5fcfvt2\u5fcfvt2.cmdline"
'%WINDIR%\microsoft.net\framework64\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES6405.tmp" "%TEMP%\u5fcfvt2\CSC2CEF772B858B41CD847CE39623E09DED.TMP"
'<SYSTEM32>\cmd.exe' /d /s /c "powershell.exe -ExecutionPolicy Bypass -Command "Add-MpPreference -ExclusionPath '%LOCALAPPDATA%\Temp'""
'<SYSTEM32>\cmd.exe' /d /s /c "tasklist /FI "IMAGENAME eq ShellManager.exe" /FO CSV /NH"
'<SYSTEM32>\tasklist.exe' /FI "IMAGENAME eq ShellManager.exe" /FO CSV /NH
'%ProgramFiles(x86)%\microsoft\edge\application\msedge.exe' --headless --disable-gpu --no-sandbox --disable-dev-shm-usage
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_VideoController | Select-Object -ExpandProperty Name""
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\Disk\Enum" -Name "0" | Select-Object -ExpandProperty "0"""
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_VideoController | Select-Object CurrentHorizontalResolution, CurrentVerticalResolution | ConvertTo-J...
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_ComputerSystem | Select-Object -ExpandProperty TotalPhysicalMemory""
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "(Invoke-WebRequest -Uri "http://ip-api.com/line/?fields=hosting" -UseBasicParsing).Content""
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_ComputerSystemProduct | Select-Object -ExpandProperty UUID""
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-ItemPropertyValue -Path 'HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform' -Name BackupProductK...
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_OperatingSystem | Select-Object Caption, OSArchitecture | ConvertTo-Json""
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "(Invoke-WebRequest -Uri "https://api.ipify.org" -UseBasicParsing).Content""
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-NetAdapter | Where-Object {$_.Status -eq 2} | Select-Object -ExpandProperty MacAddress""
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_VideoController | Select-Object CurrentHorizontalResolution, CurrentVerticalResolution | ConvertTo-Json"
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\Disk\Enum" -Name "0" | Select-Object -ExpandProperty "0""
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_VideoController | Select-Object -ExpandProperty Name"
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_ComputerSystem | Select-Object -ExpandProperty TotalPhysicalMemory"
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "(Invoke-WebRequest -Uri "http://ip-api.com/line/?fields=hosting" -UseBasicParsing).Content"
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "Get-ItemPropertyValue -Path 'HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform' -Name BackupProductKeyDefault"
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_ComputerSystemProduct | Select-Object -ExpandProperty UUID"
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_OperatingSystem | Select-Object Caption, OSArchitecture | ConvertTo-Json"
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "(Invoke-WebRequest -Uri "https://api.ipify.org" -UseBasicParsing).Content"
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -ExecutionPolicy Bypass -NoProfile -Command "Get-NetAdapter | Where-Object {$_.Status -eq 2} | Select-Object -ExpandProperty MacAddress"
'<SYSTEM32>\cmd.exe' /d /s /c "<SYSTEM32>\REG.exe QUERY HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography /v MachineGuid"' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "tasklist"' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell "try { (Get-Process -Id 4276).Path } catch { '' }""' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell.exe -ExecutionPolicy Bypass -File "%TEMP%\PCc8dWcYYl.ps1""' (with hidden window)
'%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\u5fcfvt2\u5fcfvt2.cmdline"' (with hidden window)
'%WINDIR%\microsoft.net\framework64\v4.0.30319\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES6405.tmp" "%TEMP%\u5fcfvt2\CSC2CEF772B858B41CD847CE39623E09DED.TMP"' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell.exe -ExecutionPolicy Bypass -Command "Add-MpPreference -ExclusionPath '%LOCALAPPDATA%\Temp'""' (with hidden window)
'%TEMP%\d1ge\launcher.exe' --doge' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "tasklist /FI "IMAGENAME eq ShellManager.exe" /FO CSV /NH"' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_VideoController | Select-Object -ExpandProperty Name""' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\Disk\Enum" -Name "0" | Select-Object -ExpandProperty "0"""' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_VideoController | Select-Object CurrentHorizontalResolution, CurrentVerticalResolution | ConvertTo-J...' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_ComputerSystem | Select-Object -ExpandProperty TotalPhysicalMemory""' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "(Invoke-WebRequest -Uri "http://ip-api.com/line/?fields=hosting" -UseBasicParsing).Content""' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_ComputerSystemProduct | Select-Object -ExpandProperty UUID""' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-ItemPropertyValue -Path 'HKLM:SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform' -Name BackupProductK...' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-WmiObject -Class Win32_OperatingSystem | Select-Object Caption, OSArchitecture | ConvertTo-Json""' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "(Invoke-WebRequest -Uri "https://api.ipify.org" -UseBasicParsing).Content""' (with hidden window)
'<SYSTEM32>\cmd.exe' /d /s /c "powershell -ExecutionPolicy Bypass -NoProfile -Command "Get-NetAdapter | Where-Object {$_.Status -eq 2} | Select-Object -ExpandProperty MacAddress""' (with hidden window)
Recommandations pour le traitement
Windows
macOS
Linux
Android
Si le système d'exploitation peut être démarré (en mode normal ou en mode sans échec), téléchargez Dr.Web Security Space et lancez un scan complet de votre ordinateur et de tous les supports amovibles que vous utilisez. En savoir plus sur Dr.Web Security Space .
Si le démarrage du système d'exploitation est impossible, veuillez modifier les paramètres du BIOS de votre ordinateur pour démarrer votre ordinateur via CD/DVD ou clé USB. Téléchargez l'image du disque de secours de restauration du système Dr.Web® LiveDisk ou l'utilitaire pour enregistrer Dr.Web® LiveDisk sur une clé USB, puis préparez la clé USB appropriée. Démarrez l'ordinateur à l'aide de cette clé et lancez le scan complet et le traitement des menaces détectées.
Si votre appareil mobile fonctionne correctement, veuillez télécharger et installer sur votre appareil mobile Dr.Web pour Android . Lancez un scan complet et suivez les recommandations sur la neutralisation des menaces détectées.
Si l'appareil mobile est bloqué par le Trojan de la famille Android.Locker (un message sur la violation grave de la loi ou la demande d'une rançon est affiché sur l'écran de l'appareil mobile), procédez comme suit:
démarrez votre Smartphone ou votre tablette en mode sans échec (si vous ne savez pas comment faire, consultez la documentation de l'appareil mobile ou contactez le fabricant) ;
puis téléchargez et installez sur votre appareil mobile Dr.Web pour Android et lancez un scan complet puis suivez les recommandations sur la neutralisation des menaces détectées ;
Débranchez votre appareil et rebranchez-le.
En savoir plus sur Dr.Web pour Android
Téléchargez Dr.Web pour Android
Gratuit pour 3 mois
Tous les composants de protection
Renouvellement de la démo via AppGallery/Google Pay
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