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Win32.HLLW.Autoruner2.14341

Added to the Dr.Web virus database: 2014-05-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Updater' = '"%APPDATA%\Windows Updater\Launch.exe"'
Creates or modifies the following files:
  • %HOMEPATH%\Start Menu\Programs\Startup\Windows.cmd
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf.lnk
  • <Drive name for removable media>:\Tot.exe
  • <Drive name for removable media>:\autorun.inf
Malicious functions:
Creates and executes the following:
  • '%HOMEPATH%\Start Menu\Programs\Startup\Windows.cmd'
  • '%APPDATA%\Windows Updater\Launch.exe'
  • '%TEMP%\qfkcosy1.2d1.exe'
Executes the following:
  • '<SYSTEM32>\cmd.exe' /c ""%TEMP%\aaaaaaa.bat""
  • '<SYSTEM32>\taskkill.exe' /f /pid 2904
  • '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\csc.exe' /noconfig /fullpaths @"%TEMP%\cvdpgkg0.cmdline"
  • '%WINDIR%\Microsoft.NET\Framework\v2.0.50727\cvtres.exe' /NOLOGO /READONLY /MACHINE:IX86 "/OUT:%TEMP%\RES2.tmp" "%TEMP%\CSC1.tmp"
Modifies file system :
Creates the following files:
  • %TEMP%\RES2.tmp
  • %TEMP%\CSC1.tmp
  • %TEMP%\aaaaaaa.bat
  • %TEMP%\qfkcosy1.2d1.exe
  • %TEMP%\cvdpgkg0.0.cs
  • %APPDATA%\Windows Updater\Launch.exe
  • %TEMP%\cvdpgkg0.out
  • %TEMP%\cvdpgkg0.cmdline
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\Tot.exe
  • <Drive name for removable media>:\autorun.inf
  • %APPDATA%\Windows Updater\Launch.exe
Deletes the following files:
  • %TEMP%\cvdpgkg0.cmdline
  • %TEMP%\qfkcosy1.2d1.exe
  • <Drive name for removable media>:\autorun.inf.lnk
  • %TEMP%\cvdpgkg0.out
  • %TEMP%\RES2.tmp
  • %TEMP%\CSC1.tmp
  • %TEMP%\cvdpgkg0.0.cs
Network activity:
Connects to:
  • 'wp#d':80
TCP:
HTTP GET requests:
  • wp#d/wpad.dat
UDP:
  • DNS ASK gl#.bl.ee
  • DNS ASK wp#d
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: '(null)'
  • ClassName: 'Indicator' WindowName: '(null)'
  • ClassName: '(null)' WindowName: '(null)'

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