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Trojan.Siggen21.16423

Added to the Dr.Web virus database: 2023-08-08

Virus description added:

Technical Information

To ensure autorun and distribution
Creates or modifies the following files
  • <SYSTEM32>\tasks\microsoft\windows\autochk\proxy
  • <SYSTEM32>\tasks\microsoft\windows\bluetooth\uninstalldevicetask
  • <SYSTEM32>\tasks\microsoft\windows\certificateservicesclient\systemtask
  • <SYSTEM32>\tasks\microsoft\windows\certificateservicesclient\usertask
  • <SYSTEM32>\tasks\microsoft\windows\location\notifications
  • <SYSTEM32>\tasks\microsoft\windows\multimedia\systemsoundsservice
  • <SYSTEM32>\tasks\microsoft\windows\nettrace\gathernetworkinfo
  • <SYSTEM32>\tasks\microsoft\windows\mui\lpremove
Malicious functions
Launches a large number of processes
Miscellaneous
Executes the following
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\.NET Framework\.NET Framework NGEN v4.0.30319 64 Critical" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\WCM\WiFiTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\User Profile Service\HiveUploadTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\USO_UxBroker_ReadyToReboot" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\USO_UxBroker_Display" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\Schedule Scan" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\Resume On Boot" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\Refresh Settings" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\Reboot" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\Policy Install" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\Maintenance Install" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\UpdateOrchestrator\Combined Scan Download Install" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\SystemRestore\SR" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Sysmain\WsSwapAssessmentTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\SettingSync\BackgroundUploadTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Sysmain\ResPriStaticDbSync" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Sysmain\HybridDriveCachePrepopulate" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Subscription\LicenseAcquisition" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Storage Tiers Management\Storage Tiers Optimization" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Speech\SpeechModelDownloadTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\SoftwareProtectionPlatform\SvcRestartTaskNetwork" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\SoftwareProtectionPlatform\SvcRestartTaskLogon" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Shell\IndexerAutomaticMaintenance" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Shell\FamilySafetyRefreshTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Shell\FamilySafetyMonitorToastTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Shell\FamilySafetyMonitor" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Shell\CreateObjectTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\SharedPC\Account Cleanup" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\SettingSync\NetworkStateChangeTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Sysmain\HybridDriveCacheRebalance" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\SettingSync\BackupTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\WDI\ResolutionHost" /disable
  • '<SYSTEM32>\wscript.exe' "<SYSTEM32>\slmgr.vbs" //B /ato
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1812.9.1178074655\1206150040" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1812.8.2147315678\1314336621" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1812.7.684896148\1584676645" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera_crashreporter.exe' --type=utility --channel="1812.4.2088461928\1975449694" --lang=en-US --no-sandbox --enable-proprietary-media-types-playback /prefetch:-645351001 /crash-reporter-parent-id=3312
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1812.6.1770931192\1596520196" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1812.5.1745197427\2055581334" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1812.4.2088461928\1975449694" --lang=en-US --no-sandbox --enable-proprietary-media-types-playback /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=renderer --alt-high-dpi-setting=96 --disable-direct-npapi-requests --enable-deferred-image-decoding --lang=en-US --enable-proprietary-media-types-playback --extension-process --enable-we...
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=renderer --alt-high-dpi-setting=96 --disable-direct-npapi-requests --enable-deferred-image-decoding --lang=en-US --enable-proprietary-media-types-playback --disable-client-side-phishing-...
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=gpu-process --channel="1812.0.1530398686\2064811839" --enable-proprietary-media-types-playback --supports-dual-gpus=false --gpu-driver-bug-workarounds=1,19,42 --gpu-vendor-id=0x0000 --gp...
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera_crashreporter.exe' -noautoupdate --ran-launcher -- https://youtu.be/GgEw2toYC4Y /crash-reporter-parent-id=1812
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' -noautoupdate --ran-launcher -- https://youtu.be/GgEw2toYC4Y
  • '%ProgramFiles(x86)%\opera\launcher.exe' -noautoupdate -- "https://youtu.be/GgEw2toYC4Y"
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Windows Filtering Platform\BfeOnServiceStartTypeChange" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Windows Error Reporting\QueueReporting" /disable
  • '<SYSTEM32>\wscript.exe' "<SYSTEM32>\slmgr.vbs" //B /skms kms.digiboy.ir
  • '<SYSTEM32>\wscript.exe' "<SYSTEM32>\slmgr.vbs" //B /ipk W269N-WFGWX-YVC9B-4J6C9-T83GX
  • '<SYSTEM32>\powercfg.exe' /hibernate off
  • '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' netsh interface tcp set global autotuninglevel=disabled
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Workplace Join\Automatic-Device-Join" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Work Folders\Work Folders Maintenance Work" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Work Folders\Work Folders Logon Synchronization" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\WindowsUpdate\sihboot" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\WindowsUpdate\sih" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\WindowsUpdate\Scheduled Start" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\WindowsUpdate\Automatic App Update" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\WindowsColorSystem\Calibration Loader" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Windows Media Sharing\UpdateLibrary" /disable
  • '<SYSTEM32>\netsh.exe' interface tcp set global autotuninglevel=disabled
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Servicing\StartComponentCleanup" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\RemoteAssistance\RemoteAssistanceTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Registry\RegIdleBackup" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Data Integrity Scan\Data Integrity Scan" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Customer Experience Improvement Program\UsbCeip" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Customer Experience Improvement Program\KernelCeipTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Customer Experience Improvement Program\Consolidator" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\CloudExperienceHost\CreateObjectTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Clip\License Validation" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Chkdsk\SyspartRepair" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Chkdsk\ProactiveScan" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\CertificateServicesClient\UserTask-Roam" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\CertificateServicesClient\UserTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\CertificateServicesClient\SystemTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\CertificateServicesClient\CryptoPolicyTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Defrag\ScheduledDefrag" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\BrokerInfrastructure\BgTaskRegistrationMaintenanceTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Bluetooth\UninstallDeviceTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Autochk\Proxy" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\AppxDeploymentClient\Pre-staged app cleanup" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\ApplicationData\appuriverifierinstall" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\ApplicationData\appuriverifierdaily" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Application Experience\StartupAppTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Application Experience\ProgramDataUpdater" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Application Experience\Microsoft Compatibility Appraiser" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\AppID\VerifiedPublisherCertStoreCheck" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\AppID\SmartScreenSpecific" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\AppID\PolicyConverter" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Active Directory Rights Management Services Client\AD RMS Rights Policy Template Management (Automated)" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\.NET Framework\.NET Framework NGEN v4.0.30319 Critical" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\BitLocker\BitLocker MDM policy Refresh" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\DeviceDirectoryClient\RegisterDeviceLocationRightsChange" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Data Integrity Scan\Data Integrity Scan for Crash Recovery" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\DeviceDirectoryClient\RegisterDevicePeriodic24" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\RecoveryEnvironment\VerifyWinRE" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Maintenance\WinSAT" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Ras\MobilityManager" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Power Efficiency Diagnostics\AnalyzeSystem" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\PI\Sqm-Tasks" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\PI\Secure-Boot-Update" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Offline Files\Logon Synchronization" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Offline Files\Background Synchronization" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\NlaSvc\WiFiTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\NetTrace\GatherNetworkInfo" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Multimedia\SystemSoundsService" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\MUI\LPRemove" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Mobile Broadband Accounts\MNO Metadata Parser" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Maps\MapsUpdateTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Maps\MapsToastTask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Location\WindowsActionDialog" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Diagnosis\Scheduled" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Location\Notifications" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\License Manager\TempSignedLicenseExchange" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\LanguageComponentsInstaller\Uninstallation" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\FileHistory\File History (maintenance mode)" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\File Classification Infrastructure\Property Definition Sync" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Feedback\Siuf\DmClientOnScenarioDownload" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\Feedback\Siuf\DmClient" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\DUSM\dusmtask" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\DiskFootprint\StorageSense" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\DiskFootprint\Diagnostics" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticResolver" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector" /disable
  • '<SYSTEM32>\schtasks.exe' /change /tn "\Microsoft\Windows\DiskCleanup\SilentCleanup" /disable
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1812.10.1391870267\184729110" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1812.11.1125509406\161214277" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001

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  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

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