Net Send Crash
One day at college my friend and I were messing with netsend. Sending messages to people on the other side of the lab like 'I can smell your brains' and other childish things.

Then I had the cunning idea of creating a batch file to spam a computer with a message. This obviously resulted in lots of people going to the admin saying my computer has been hacked etc.

The admins were idiots, they didn't even know of netsend, so obviously we abused the power we had.

We started by sending the same message to every computer in the college (some 500).

Then we thought about using the batch file to it's full potential.
We must have waited weeks for the perfect moment. The smart arse in our IT class who didn't actually know that much about computers, but who was a wizz on excel and so got As on all the coursework, left his computer logged on after one lesson.
We pounced. We set off our batch file to spam 'H4><0R3D' to every single computer in the college until the file was stopped. Obviously it took them a good hour to track down the computer which had it on and so we crashed the entire college system.

When they found the owner of the user space they immediately kicked him out of college.

I would feel slightly bad for ruining someones life (he now works in Wilkos full time), but we were bored, and he was a cock.
(Deiwos - Woo I found my old name!, Mon 9 May 2005, 21:57, Reply)