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Win32.HLLW.Autoruner.56179

Added to the Dr.Web virus database: 2011-08-13

Virus description added:

Technical Information

To ensure autorun and distribution:
Modifies the following registry keys:
  • [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'crss.exe' = '"%APPDATA%\crss.exe"'
  • [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'crss.exe' = '"%APPDATA%\crss.exe"'
Creates the following files on removable media:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\{%USERNAME%-#wuperr#}\crss.exe
Malicious functions:
Injects code into
the following system processes:
  • %WINDIR%\Explorer.EXE
Modifies file system :
Sets the 'hidden' attribute to the following files:
  • <Drive name for removable media>:\autorun.inf
  • <Drive name for removable media>:\{%USERNAME%-#wuperr#}\crss.exe
Moves itself:
  • from <Full path to virus> to %APPDATA%\crss.exe
Network activity:
Connects to:
  • 'su#####ffles.zapto.org':6999
UDP:
  • DNS ASK su#####ffles.zapto.org
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Indicator' WindowName: ''