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From: Michael Katz (mike_at_procinct.com)
Date: Thu Sep 05 2002 - 15:07:29 CDT

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    At 9/5/2002 11:34 AM, Etaoin Shrdlu wrote:

    >I saved a full session of one of the attempts on my local machine (seven
    >packets worth) from ethereal. There was also an initial attempt to validate
    >as user "tcpwrappers" which I found a bit odd. Those are the only things
    >beyond log entries, and of course the packets are incomplete (since the
    >attempts were blocked). The odd and unique thing is that the initial
    >payload was:
    >
    > > GET http://www.yahoo.com/ HTTP/1.1
    > > Host: www.yahoo.com
    > > Accept: */*
    > > Pragma: no-cache
    > > User-Agent: Mozilla/4.0 (compatible; MSIE 4.01; Windows 98)

    That looks like someone scanning for a proxy server. Typically these scans
    are limited to ports 80, 1080, 3128, and 8080, but maybe somebody has found
    a reason to look for proxy servers on SMTP ports.

    Michael Katz
    mikeprocinct.com
    Procinct Security

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