Self-Executing HTML: Internet Explorer 5.5 and 6.0

From: http-equivat_private
Date: Sat Jun 01 2002 - 07:42:10 PDT

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    Saturday, June 01, 200
    
    The following file is an html file comprising both scripting and a 
    complied help file [*.chm]. 
    
    We inject scripting into the actual help file which is designed to 
    point back to the html file and execute it. Provided the html file 
    name contains the 'word' chm in it, Internet Explorer 5.5 and 6.0 
    executes it.
    
    Because it is an html file proper, Internet Explorer opens it. The 
    scripting inside is then parsed and fired. That scripting is pointing 
    back to the same file with a showHelp call and because that is 
    precisely what it is, it executes !
    
    Tested on win98 IE5.5 and IE6. Constructed for win98:
    
    [harmless *.exe - requires positioning of Mshta.exe @ 
    C:\WINDOWS\SYSTEM]
    
    http://www.malware.com/html.zip
    
    Be aware of html files out there.
    
    End Call
    
    -- 
    http://www.malware.com
    



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