Got it. Much Thanks

eric.leff at gmail.com

Although the author of that article tries to make it seem like this is near unstoppable, there are actually several feasable methods by which this can be stopped. 2 off the top of my head. Install an IPS. An IPS can do a deep inspection of the packet no matter the port and identify/block unwanted traffic. When Skype servers are used as a form of proxy there are several options. A)Have the firewalls block Skype IP addresses. B) Decrease the timeout value for UDP packets on the firewall.