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Win32.HLLW.Facebook.997

Added to the Dr.Web virus database: 2011-08-02

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'psdc.exe' = '"%APPDATA%\psdc.exe"'
  • [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\systems] 'Name' = '"%TEMP%\2.tmp"'
Malicious functions:
Injects code into
the following system processes:
  • <SYSTEM32>\spoolsv.exe
Terminates or attempts to terminate
the following user processes:
  • iexplore.exe
  • firefox.exe
  • chrome.exe
Modifies file system :
Creates the following files:
  • %WINDIR%\Temp\3.tmp
  • %TEMP%\4.tmp
  • %TEMP%\2.tmp
  • %APPDATA%\psdc.exe
  • %TEMP%\1.tmp