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Win32.HLLW.Autoruner.47644

Added to the Dr.Web virus database: 2011-04-14

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'winlog.exe' = '%APPDATA%\Microsoft\winlog.exe'
Creates the following files on removable media
  • <Drive name for removable media>:\winlog.exe
  • <Drive name for removable media>:\autorun.inf
Modifies file system
Creates the following files
  • %TEMP%\server.exe
  • %TEMP%\bot.vbs
  • %APPDATA%\microsoft\winlog.exe
Sets the 'hidden' attribute to the following files
  • %APPDATA%\microsoft\winlog.exe
  • <Drive name for removable media>:\winlog.exe
  • <Drive name for removable media>:\autorun.inf
Deletes the following files
  • %APPDATA%\microsoft\winlog.exe
Network activity
Connects to
  • '255.255.255.255':3174
UDP
  • DNS ASK a7##.no-ip.info
Miscellaneous
Creates and executes the following
  • '%TEMP%\server.exe'
  • '<SYSTEM32>\wscript.exe' "%TEMP%\bot.vbs"
  • '%APPDATA%\microsoft\winlog.exe'

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