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Date: Sat, 5 Jun 2004 09:20:32 -0400 (EDT)
From: Yasir Malik <ymalik@cs.stevens-tech.edu>
To: Hasse <hasse@swedehost.com>
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cc: FreeBSD_Questions <freebsd-questions@freebsd.org>
Subject: Re: Sending a message to another computer on the network
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> -----------------
> httpd-access.log :
> <snip>
> 217.209.211.183 - - [05/Jun/2004:14:11:28 +0200] "SEARCH /\x90\x02\xb1\
> </snip>
> and the last line ending with :
> \x90\x90\x90\x90" 414 391 "-" "-"
> ----------------

He's obviously trying to hack into your system using some escape character
sequence.  Report him.
Yasir