Seems like it is out, and being use on my server. Well, used to be. My clan leader and co-leader ended up DoXing the kid who did it and scared him shitless with his address and phone number off of a resume. The script pretty much stops b3 from seeing anything. b3 is shutoff and no commands go through. It also had a rcon flooder that stops commands in rcon too.
It's not a 'b3 take-over script', it's simply an rcon flooder (remember that b3 interacts with the server using rcon). There is a potential fix here - but all server alterations are done at your own risk:
http://aluigi.altervista.org/patches/q3rconz.lpatch