Once again, you post a trivial snippet of destructive code, which serves no practical purpose whatsoever, doesn't work well and is not even generalised enough to be used on other networks. No, this is not a suitable tool for testing the safety of a network, the same way as a sledgehammer is not a good tool for testing the safety of a door lock. No doubt you will reply with protestations that you are a HACKER not a cracker, but what you display in these nodes shows you to be a script kiddie of the most blithely ignorant kind, who has unfortunately chosen Perl to display his ignorance to the world. I, for one, wish you'd stop posting such nonsense and go read a lot of books on network security. Then take a look around on the internet to see what people have already come up with. Then try inventing something new and maybe it'll actually be useful.