That's a lot of scanning, but what effect is there on the Internet? Here's a snapshot from the Internet Health Report:
What this worm proves is that Windows boxes cannot be placed on the Internet without an access control device protecting certain ports. Windows offers too many services that are capable of being exploited. Connecting unprotected laptops to corporate internal networks via VPN is a risk which needs to be controlled. (Here's a home user wondering why his machine keeps rebooting -- msblast.exe?) Companies should look for firewall solutions on the NIC, perhaps like this Linksys USBVPN1. If anyone has experience with this product, please email me.