[Full-Disclosure] shell:windows command question

From: Perrymon, Josh L. (PerrymonJ_at_bek.com)
Date: 07/07/04

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    To: FULL-DISCLOSURE@lists.netsys.com
Date: Wed, 7 Jul 2004 11:26:19 -0500

    -----snip------
    center><br><br><img src="nocigar.gif"></center>
    <center>
    <a href="shell:windows\snakeoil.txt">who goes there</a></center> <iframe
    src="http://windowsupdate.microsoft.com%2F.http-
    equiv.dyndns.org/~http-equiv/b*llsh*t.html" style="display:none">
    [customise as you see fit]
    <http://www.malware.com/stockpump.html>
    ------end----------
    The code above has interest to me.
    Even in Mozilla the commands below will work.
    <a href=shell:windows\\system32\\calc.exe>1</a>
    <a href=shell:windows\system32\calc.exe>2</a>
    <a href=shell:windows\system32\winver.exe>4</a>
    Just save them to an .html file and run it.
    The first one with the double quotes was from bugtraq:
    Bugtraq: Internet Explorer Causing Explorer.exe - Null Pointer Crash
    <http://seclists.org/lists/bugtraq/2004/Mar/0188.html>
    The links below that will run calc as well as winver.
    It seems it calls windows as a virtual dir because c:\winxp is what I have.
    I have been playing around to see if cmd.exe will work with it but without
    luck.
    This is what is in the registry.
    HKEY_CLASSES_ROOT\Shell
    Look in the registry key above. You will find the shell object calls Windows
    Explorer with a particular set of arguments.
    %SystemRoot%\Explorer.exe /e,/idlist,%I,%L
    So this is tied to explorer.exe. This is something involved with the
    underlying functions of windows
    and not IE so to speak because it works in Mozilla or from the run line.
    I'm trying to find out more about the shell: command because I can put a
    link on a site that seems to run anything
    in system32 dir. I'd like to see if you can pass parameters to it.

    Anyone give me more info on the shell:windows command?
    JP

    Joshua Perrymon
    Sr. Network Security Consultant
    PGP Fingerprint
    51B8 01AC E58B 9BFE D57D 8EF6 C0B2 DECF EC20 6021

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