Win32.HLLW.Autoruner.53071
Added to the Dr.Web virus database:
2011-07-02
Virus description added:
2011-07-02
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'mscfig' = '%WINDIR%\mscfig.exe'
Creates or modifies the following files:
- %ALLUSERSPROFILE%\Start Menu\Programs\Startup\mscfig.exe
Creates the following files on removable media:
- <Drive name for removable media>:\USBProtecter.exe
- <Drive name for removable media>:\Autorun.inf
Malicious functions:
Creates and executes the following:
- <SYSTEM32>\userinit32.exe (downloaded from the Internet) 0
- %WINDIR%\mscfig.exe 0
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\winhlp322[1].exe
- <SYSTEM32>\userinit32.exe
- %WINDIR%\mscfig.exe
- <Current directory>\systemlog.txt
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\USBProtecter.exe
- %ALLUSERSPROFILE%\Start Menu\Programs\Startup\mscfig.exe
- %WINDIR%\mscfig.exe
- <Drive name for removable media>:\Autorun.inf
Deletes the following files:
- <Drive name for removable media>:\Autorun.inf
Network activity:
Connects to:
TCP:
HTTP GET requests:
- li##sky.biz/NEW/winhlp322.exe
UDP:
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