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Added to the Dr.Web virus database: 2012-01-19

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Email' = '%PROGRAM_FILES%/Email/Internet/run.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'Internet' = 'explorer.exe, %APPDATA%/Email/avg.exe'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'winlogon' = '%WINDIR%/system32/drivers/winlogon.scr'
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'userinit' = '<SYSTEM32>\userinit.exe, %HOMEPATH%\svchost.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, %APPDATA%/Email/avg.exe'
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Email' = '%PROGRAM_FILES%/Email/Internet/run.exe'
Creates the following services:
  • [<HKLM>\SYSTEM\ControlSet001\Services\Windows network Service] 'ImagePath' = '<SYSTEM32>\nw.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\AVResult] 'ImagePath' = '%TEMP%\svchost.exe'
  • [<HKLM>\SYSTEM\ControlSet001\Services\AVResult\Parameters] 'ServiceDll' = '%TEMP%\svchost.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
  • hidden files
  • file extensions
blocks execution of the following system utilities:
  • Windows Task Manager (Taskmgr)
blocks the following features:
  • System Restore (SR)
  • User Account Control (UAC)
Executes the following:
  • <SYSTEM32>\reg.exe add "HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{149256D5-E103-4523-BB43-2CFB066839D6}"/v "(Default)" /d "XML Module"
  • <SYSTEM32>\cmd.exe /c ""%WINDIR%/system32/sys.bat" "
Modifies settings of Windows Explorer:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '1'
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
  • %HOMEPATH%\My Documents\Downloads\WindowsUpdate-full.exe
  • %HOMEPATH%\My Documents\Downloads\WindowsUpdate-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Windows NT-full.exe
  • <SYSTEM32>\sys.bat
  • %HOMEPATH%\My Documents\Downloads\xerox-full.exe
  • %HOMEPATH%\My Documents\Downloads\xerox-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Windows NT-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Uninstall Information-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Reference Assemblies-full.exe
  • %HOMEPATH%\My Documents\Downloads\Reference Assemblies-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Windows Media Player-full.exe
  • %HOMEPATH%\My Documents\Downloads\Windows Media Player-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Uninstall Information-full.exe
  • %HOMEPATH%\svchost.exe
  • %HOMEPATH%\Desktop\Internet.pif
  • %PROGRAM_FILES%\Email\Internet\readme.txt
  • %PROGRAM_FILES%\Email\Internet\confg.exe
  • %PROGRAM_FILES%\Internet Explorer\iexplore.exe
  • %PROGRAM_FILES%\Internet Explorer\bk.exe
  • %HOMEPATH%\Desktop\Email.pif
  • <DRIVERS>\winlogon.scr
  • <SYSTEM32>\csrcs.exe
  • <SYSTEM32>\nw.exe
  • %TEMP%\svchost.exe
  • %PROGRAM_FILES%\Email\Internet\run.exe
  • %APPDATA%\Email\avg.exe
  • <SYSTEM32>\
  • %HOMEPATH%\My Documents\Downloads\Outlook Express-full.exe
  • %HOMEPATH%\My Documents\Downloads\Messenger-full.exe
  • %HOMEPATH%\My Documents\Downloads\Messenger-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Internet Explorer-full.exe
  • %HOMEPATH%\My Documents\Downloads\Microsoft.NET-crack.exe
  • %HOMEPATH%\My Documents\Downloads\microsoft frontpage-full.exe
  • %HOMEPATH%\My Documents\Downloads\microsoft frontpage-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Internet Explorer-crack.exe
  • %HOMEPATH%\My Documents\Downloads\ComPlus Applications-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Common Files-full.exe
  • %HOMEPATH%\My Documents\Downloads\Common Files-crack.exe
  • %HOMEPATH%\My Documents\Downloads\FireFox-full.exe
  • %HOMEPATH%\My Documents\Downloads\FireFox-crack.exe
  • %HOMEPATH%\My Documents\Downloads\ComPlus Applications-full.exe
  • %HOMEPATH%\My Documents\Downloads\Microsoft.NET-full.exe
  • %HOMEPATH%\My Documents\Downloads\NetMeeting-full.exe
  • %HOMEPATH%\My Documents\Downloads\NetMeeting-crack.exe
  • %HOMEPATH%\My Documents\Downloads\MSN Gaming Zone-full.exe
  • %HOMEPATH%\My Documents\Downloads\Outlook Express-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Online Services-full.exe
  • %HOMEPATH%\My Documents\Downloads\Online Services-crack.exe
  • %HOMEPATH%\My Documents\Downloads\MSN Gaming Zone-crack.exe
  • %HOMEPATH%\My Documents\Downloads\MSBuild-crack.exe
  • %HOMEPATH%\My Documents\Downloads\Movie Maker-full.exe
  • %HOMEPATH%\My Documents\Downloads\Movie Maker-crack.exe
  • %HOMEPATH%\My Documents\Downloads\MSN-full.exe
  • %HOMEPATH%\My Documents\Downloads\MSN-crack.exe
  • %HOMEPATH%\My Documents\Downloads\MSBuild-full.exe
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\nw.exe
  • <SYSTEM32>\csrcs.exe
  • %TEMP%\svchost.exe
  • %HOMEPATH%\svchost.exe
Searches for the following windows:
  • ClassName: 'Indicator' 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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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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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