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Trojan.Siggen31.13170

Added to the Dr.Web virus database: 2025-04-16

Virus description added:

Technical Information

Malicious functions
Executes the following
  • '%WINDIR%\syswow64\taskkill.exe' /f /im powershell.exe
Launches a large number of processes
Miscellaneous
Searches for the following windows
  • ClassName: '' WindowName: 'Çý¶¯ÈËÉúרɱ'
  • ClassName: '' WindowName: ''
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c sc stop Ddriver
  • '%WINDIR%\syswow64\wbem\wmic.exe' datafile where "drive = 'c:' and Path = '\\windows\\SysWOW64\\drivers\\' and FileName = 'svchost' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\cmd.exe' /c wmic datafile where "drive = 'c:' and Path = '\\windows\\SysWOW64\\drivers\\' and FileName = 'svchost' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\wbem\wmic.exe' datafile where "drive = 'c:' and Path = '\\windows\\temp\\' and FileName = 'svchost' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\cmd.exe' /c wmic datafile where "drive = 'c:' and Path = '\\windows\\temp\\' and FileName = 'svchost' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\wbem\wmic.exe' datafile where "drive = 'c:' and Path = '\\windows\\temp\\' and FileName = 'mkatz' and Extension = 'ini'" call delete
  • '%WINDIR%\syswow64\cmd.exe' /c wmic datafile where "drive = 'c:' and Path = '\\windows\\temp\\' and FileName = 'mkatz' and Extension = 'ini'" call delete
  • '%WINDIR%\syswow64\wbem\wmic.exe' datafile where "drive='c:' and Path = '\\windows\\temp\\' and FileName = 'm' and Extension = 'ps1'" call delete
  • '%WINDIR%\syswow64\cmd.exe' /c wmic datafile where "drive='c:' and Path = '\\windows\\temp\\' and FileName = 'm' and Extension = 'ps1'" call delete
  • '%WINDIR%\syswow64\wbem\wmic.exe' datafile where "drive='c:' and Path = '\\windows\\temp\\' and FileName = 'updater' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\wbem\wmic.exe' datafile where "drive = 'c:' and Path = '\\windows\\SysWOW64\\drivers\\' and FileName = 'taskmgr' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\cmd.exe' /c wmic datafile where "drive = 'c:' and Path = '\\windows\\SysWOW64\\drivers\\' and FileName = 'taskmgr' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\cmd.exe' /c wmic process where "name='svchost.exe' and ExecutablePath='C:\\Windows\\temp\\svchost.exe'" call Terminate
  • '%WINDIR%\syswow64\wbem\wmic.exe' process where "name='updater.exe' and ExecutablePath='C:\\Windows\\temp\\updater.exe'" call Terminate
  • '%WINDIR%\syswow64\cmd.exe' /c wmic process where "name='updater.exe' and ExecutablePath='C:\\Windows\\temp\\updater.exe'" call Terminate
  • '%WINDIR%\syswow64\wbem\wmic.exe' process where "name='wmiex.exe'" call Terminate
  • '%WINDIR%\syswow64\cmd.exe' /c wmic process where "name='wmiex.exe'" call Terminate
  • '%WINDIR%\syswow64\wbem\wmic.exe' process where "name='taskmgr.exe' and ExecutablePath='C:\\WINDOWS\\SysWOW64\\drivers\\taskmgr.exe'" call Terminate
  • '%WINDIR%\syswow64\cmd.exe' /c wmic process where "name='taskmgr.exe' and ExecutablePath='C:\\WINDOWS\\SysWOW64\\drivers\\taskmgr.exe'" call Terminate
  • '%WINDIR%\syswow64\wbem\wmic.exe' process where "name='svchost.exe' and ExecutablePath='C:\\windows\\SysWOW64\\drivers\\svchost.exe'" call Terminate
  • '%WINDIR%\syswow64\cmd.exe' /c wmic process where "name='svchost.exe' and ExecutablePath='C:\\windows\\SysWOW64\\drivers\\svchost.exe'" call Terminate
  • '%WINDIR%\syswow64\cmd.exe' /c wmic datafile where "drive='c:' and Path = '\\windows\\temp\\' and FileName = 'updater' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "Autoscan"
  • '%WINDIR%\syswow64\cmd.exe' /c wmic datafile where "drive = 'c:' and Path = '\\windows\\SysWOW64\\' and FileName = 'wmiex' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "90-C2-7E-53-EC-30"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "90-C2-7E-53-EC-30"
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "\Microsoft\Windows\90-C2-7E-53-EC-30" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "\Microsoft\Windows\90-C2-7E-53-EC-30" /f
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "\Microsoft\Windows\90-C2-7E-53-EC-30"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "\Microsoft\Windows\90-C2-7E-53-EC-30"
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "Credentials" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "Credentials" /f
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "Credentials"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "Credentials"
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "\Microsoft\Credentials" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "\Microsoft\Credentials" /f
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "\Microsoft\Credentials"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "\Microsoft\Credentials"
  • '%WINDIR%\syswow64\cmd.exe' /c taskkill /f /im powershell.exe
  • '%WINDIR%\syswow64\netsh.exe' interface portproxy delete v4tov4 listenport=65532
  • '%WINDIR%\syswow64\cmd.exe' /c netsh interface portproxy delete v4tov4 listenport=65532
  • '%WINDIR%\syswow64\netsh.exe' interface portproxy delete v4tov4 listenport=65531
  • '%WINDIR%\syswow64\cmd.exe' /c netsh interface portproxy delete v4tov4 listenport=65531
  • '%WINDIR%\syswow64\wbem\wmic.exe' datafile where "drive = 'c:' and Path = '\\windows\\SysWOW64\\' and FileName = 'svhost' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\cmd.exe' /c wmic datafile where "drive = 'c:' and Path = '\\windows\\SysWOW64\\' and FileName = 'svhost' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "\Microsoft\windows\Bluetooths" /f
  • '%WINDIR%\syswow64\wbem\wmic.exe' process where "name='svchost.exe' and ExecutablePath='C:\\Windows\\temp\\svchost.exe'" call Terminate
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "\Microsoft\windows\Bluetooths" /f
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "WebServers" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "WebServers" /f
  • '%WINDIR%\syswow64\sc.exe' delete WebServers
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "Ddrivers"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "Ddrivers"
  • '%WINDIR%\syswow64\net1.exe' user k8h3d /del
  • '%WINDIR%\syswow64\net.exe' user k8h3d /del
  • '%WINDIR%\syswow64\cmd.exe' /c net user k8h3d /del
  • '%WINDIR%\syswow64\sc.exe' delete DnsScan
  • '%WINDIR%\syswow64\cmd.exe' /c sc delete DnsScan
  • '%WINDIR%\syswow64\sc.exe' stop DnsScan
  • '%WINDIR%\syswow64\cmd.exe' /c sc stop DnsScan
  • '%WINDIR%\syswow64\cmd.exe' /c sc delete WebServers
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "DnsScan"
  • '%WINDIR%\syswow64\sc.exe' stop WebServers
  • '%WINDIR%\syswow64\cmd.exe' /c sc stop WebServers
  • '%WINDIR%\syswow64\sc.exe' delete RemComSvc
  • '%WINDIR%\syswow64\cmd.exe' /c sc delete RemComSvc
  • '%WINDIR%\syswow64\sc.exe' stop RemComSvc
  • '%WINDIR%\syswow64\cmd.exe' /c sc stop RemComSvc
  • '%WINDIR%\syswow64\sc.exe' delete Ddriver
  • '%WINDIR%\syswow64\cmd.exe' /c sc delete Ddriver
  • '%WINDIR%\syswow64\sc.exe' stop Ddriver
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "90-C2-7E-53-EC-30" /f
  • '%WINDIR%\syswow64\wbem\wmic.exe' datafile where "drive = 'c:' and Path = '\\windows\\SysWOW64\\' and FileName = 'wmiex' and Extension = 'exe'" call delete
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "Autoscan"
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "Autocheck"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "DnsScan"
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "Bluetooths" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "Bluetooths" /f
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "net restart" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "net restart" /f
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "Autocheck" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "Autocheck" /f
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "Autostart" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "Autostart" /f
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "Autoscan" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "Autoscan" /f
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "DnsScan" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "DnsScan" /f
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "Ddrivers" /f
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /delete /tn "Ddrivers" /f
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "\Microsoft\windows\Bluetooths"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "\Microsoft\windows\Bluetooths"
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "net restart"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "net restart"
  • '%WINDIR%\syswow64\schtasks.exe' /End /tn "Autostart"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "Autostart"
  • '%WINDIR%\syswow64\cmd.exe' /c schtasks /End /tn "Autocheck"
  • '%WINDIR%\syswow64\schtasks.exe' /delete /tn "90-C2-7E-53-EC-30" /f

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  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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Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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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.

Find out more about Dr.Web for Android