But the .cnt file isn't directly executable; it gets called from the .hlp
file. This is the equivalent, in that way, of sending them an evil .dll
file and hoping they register it.

> -----Original Message-----
> From: Josh Gilmour [mailto:jgilmour (at) attbi (dot) com [email concealed]]
> Sent: Thursday, March 13, 2003 7:13 AM
> To: 'Rob Shein'; 'descript'; vuln-dev (at) securityfocus (dot) com [email concealed];
> bugtraq (at) securityfocus (dot) com [email concealed]
> Subject: RE: Win32hlp exploit for : ":LINK overflow"
>
>
> Personally, I know people who know that they shouldn't
> download or open .exe's due to viruses, yet they would have
> no clue about .cnt or .hlp files. That being said it could be
> a risk for them, yet people with some experience would
> noticed that something isn't right and ignore it... But
> that's just me....
>
> I could have it wrong also, but does the risk happen because
> the .cnt can be emailed to someone/sent to them, and they
> could download and run it? That's how I see it working
> anyways, just like running an executable from an email.
>
> - Josh
>
> -----Original Message-----
> From: Rob Shein [mailto:shoten (at) starpower (dot) net [email concealed]]
> Sent: Tuesday, March 11, 2003 8:59 AM
> To: 'descript'; vuln-dev (at) securityfocus (dot) com [email concealed]; bugtraq (at) securityfocus (dot) com [email concealed]
> Subject: RE: Win32hlp exploit for : ":LINK overflow"
>
> I'm not entirely sure I get how serious this is. If I
> understand correctly, you're modifying a .cnt file so that
> when it's called (by using it's corresponding .hlp file) it
> will go out and download/execute a program from a
> predetermined site. When you're at the stage where you can
> modify files on the target machine, how much of a difference
> does it make to be able to get a .cnt file to do your
> bidding, as opposed to any executable that could have another
> executable bound to it, for example? Perhaps I'm missing something...
>
> > -----Original Message-----
> > From: descript [mailto:descript (at) sv98.s0h (dot) cc [email concealed]]
> > Sent: Saturday, March 08, 2003 7:38 PM
> > To: vuln-dev (at) securityfocus (dot) com [email concealed]; bugtraq (at) securityfocus (dot) com [email concealed]
> > Subject: Win32hlp exploit for : ":LINK overflow"
> >
> >
> > hi list,
> >
> > In date Sunday, 9 March, 2003 1:00 AM s0h released an exploit
> > : Win32hlp exploit for : ":LINK overflow"
> >
> > Source : http://s0h.cc/exploit/s0h_Win32hlp.c
> > Binary : http://s0h.cc/exploit/s0h_Win32hlp.exe
> >
> > Discovered by ThreaT <threat (at) s0h (dot) cc [email concealed]>.
> > Coded by ThreaT <threat (at) s0h (dot) cc [email concealed]>
> > Hompage : http://s0h.cc/~threat/
> >
> > This exploit can trap a .CNT file (file with .HLP files) with
> > the arbitrary code who can download and execute a trojan
> > without user ask.
> >
> > This exploit was tested on :
> > - Windows 2000 PRO/SERVER (fr) SP0
> > - Windows 2000 PRO/SERVER (fr) SP1
> > - Windows 2000 PRO/SERVER (fr) SP2
> >
> >
> > Best regards,
> > descript <descript (at) s0h (dot) cc [email concealed]>
> > s0h - Skin of humanity
> > http://s0h.cc
> >
>
>

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