full-disclosure - Re: AIM Password theft

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From: smenard at nbnet.nb.ca (Steve Menard)
Subject: Re: AIM Password theft

windows 2000 professional  all patches
kaboom:

not only was wmplayer overwritten..with text..
but  IE 6  DIED   ..   then launched a command window

command prompt labelled 'C:\PROGRA~1\WINDOW~1\wmplayer.exe'
followed quickly by ...
--dialog box--
16-bit MS-DOS Subsystem
C:\PROGRA~1\WINDOW~1\wmplayer.exe
the NTVDM CPU has encountered an illegal instruction.
CS:0544 IP:01CC OP:63 68 65 2F 31 Choose 'Close' to terminate the 
application.
[close] [ignore]

yikes



http-equiv@...ite.com wrote:
<!--
  Out of curiosity I followed that link which loaded start.html (attached).
  -->

Caution: off-site archives will and have already stored this as:

text/plain attachment: start.txt
Tested on neohapsis
[http://archives.neohapsis.com/archives/bugtraq/2003-09/0375.html]

Due to the 'never-addressed-mime-issue' of Internet Explorer reading 
even dog poo as html, opening start.txt will effect the exploit partialy.
Namely:

  C:\Program Files\Windows Media Player\wmplayer.exe
will be overwritten by simply viewing the attached text file.

It is apparent the original intended payload .exe is no longer at the 
location, but the wmplayer.exe is still overwritten with a 1KB 
wmplayer.exe containing the following:

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
<HTML><HEAD>
<TITLE>404 Not Found</TITLE>
</HEAD><BODY>
<H1>Not Found</H1>
The requested URL /eg/1.exe was not found on this server.<P>
<HR>
<ADDRESS>Apache/1.3.26 Server at onway.net Port 80</ADDRESS>
</BODY></HTML>