Lebrea tar pits.  Although use of this software is now technically illegal in several states and is 
debatable (legally) under some federal statues.
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> Brian Densmore wrote:
> 
> | I'm looking to write a little shell/perl/python
> | script to run on my server 24/7 looking for attackers.
> | I want to hide this script from view. Anyone ever done this?
> | Or do I have to break out a compiled language to do this.
> | Also, anyone know of a good Linux disassembler? I
> | want to reverse engineer the rootkit that the cracker
> | used on my machine. This little script doesn't have to
> | be hack-proof as it is really only meant to send out
> | an alarm when someone successfully breaks in. I'm just
> | wanting to give my script enough time to send out a call
> | for help, and maybe do a system shutdown. I figure if
> | I create my own watchdog, it is unlikely to be sniffed out
> | automatically by a rootkit.
> 
> Google 'honeypot'.
> 
> 
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