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Win32.HLLW.Autoruner.47284

Added to the Dr.Web virus database: 2011-04-02

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'GoogleChromeUpdate' = '%TEMP%\GoogleChromeUpdate.exe'
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\] 'Startup' = '%APPDATA%\Microsoft\svchost.exe'
Creates the following files on removable media
  • <Drive name for removable media>:\svchost.exe
  • <Drive name for removable media>:\autorun.inf
Malicious functions
Injects code into
the following system processes:
  • %WINDIR%\microsoft.net\framework\v2.0.50727\csc.exe
Modifies file system
Creates the following files
  • %TEMP%\googlechromeupdate.exe
  • %APPDATA%\microsoft\svchost.exe
Sets the 'hidden' attribute to the following files
  • %APPDATA%\microsoft\svchost.exe
  • <Drive name for removable media>:\svchost.exe
  • <Drive name for removable media>:\autorun.inf
Modifies the HOSTS file.
Network activity
Connects to
  • 're####.dyndns.info':3086
UDP
  • DNS ASK re####.dyndns.info
Miscellaneous
Creates and executes the following
  • '%TEMP%\googlechromeupdate.exe'
Executes the following
  • '%WINDIR%\microsoft.net\framework\v2.0.50727\csc.exe'
  • '%ProgramFiles(x86)%\internet explorer\iexplore.exe'

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