udpxy is a “small-footprint UNIX/Linux daemon to relay multicast UDP traffic to client’s TCP (HTTP) connection.”
Shodan search: http://www.shodanhq.com/search?q=udpxy
This will give some information on the network traffic going to and from the machine. It also lets you restart the server without authenticating. With a simple shell script you can keep rebooting the service.
Whoever made the search on Shodan also included this info: http://imgur.com/4vZU7GR