I _very_ nearly did this whilst working for a University back in the early noughties. Luckily I managed to get to the server before the "advert" activated and wiped out everything. It was so easy to do I am surprised that it is stil possible. I feel for their pain, but it does sound like they are doing a good job of mopping up. I did allow myself a snort of laughter when I read the bit about the server being re imaged as well. That is pretty darn impressive carpet bombing the entire campus.