Intel proposed a new platform level solution that can dynamically control the functionality of the network hardware based on network activity. The manageability engine monitors the number of connections opened per second and will shutdown the NIW once the software is trying to open more connections than a certain threshold determines is appropriate.
The heuristics Intel employs in order to detect virus-like network activity seem to be very accurate and effective. Justin Rattner stated that under tests looking at 8000 worms and various other applications, the heuristics caught all every single virus. The worms studied include all known worms as well as custom worms developed by Intel to test the hardware.More details and photos at AnandTech