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Win32.HLLW.Autoruner.54330
Added to the Dr.Web virus database:
2011-07-15
Virus description added:
2011-07-15
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Classes\chm.file\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\regfile\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\hlpfile\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\CLSID\{20D04FE0-3AEA-1069-A2D8-08002B30309D}\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\Applications\iexplore.exe\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\cmdfile\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\txtfile\shell\open\command] '' = ''
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows] 'Load' = '"<SYSTEM32>\smss.exe:750234914.vbs"'
[<HKLM>\SOFTWARE\Classes\inifile\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\batfile\shell\open\command] '' = ''
[<HKLM>\SOFTWARE\Classes\inffile\shell\open\command] '' = ''
Creates the following files on removable media:
<Drive name for removable media>:\AutoRun.inf
<Drive name for removable media>:\1290004616.vbs
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
%WINDIR%\system\svchost.exe <SYSTEM32>\smss.exe:750234914.vbs
Executes the following:
<SYSTEM32>\wscript.exe ""%TEMP%\~sfx00797E159C\1998182540.vbs""
Forces autoplay for removable media.
Modifies file system :
Creates the following files:
C:\System Volume Information.lnk
%WINDIR%.lnk
C:\RECYCLER.lnk
<Auxiliary element>
%WINDIR%\explorer.exe:750234914.vbs
<SYSTEM32>\dllcache\explorer.exe.new
<SYSTEM32>\dllcache\smss.exe.new
<SYSTEM32>\smss.exe:750234914.vbs
%WINDIR%\system\svchost.exe
C:\750234914.vbs
C:\AutoRun.inf
%TEMP%\~sfx00797E159C\123.exe
%TEMP%\~sfx00797E159C\1998182540.vbs
<Current directory>.lnk
C:\<Auxiliary name>.lnk
%PROGRAM_FILES%.lnk
C:\Documents and Settings.lnk
C:\Far.lnk
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\1290004616.vbs
<Drive name for removable media>:\AutoRun.inf
%WINDIR%\system\svchost.exe
%TEMP%\~sfx00797E159C\1998182540.vbs
C:\750234914.vbs
C:\AutoRun.inf
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
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