I've seen this issue when folk have torrent software installed and that attack is from the media protection company you have read about. The fix was simple. Uninstall the torrent software and wait for the attack to end.
Here is the suspicious activity that is going on.
PeerGuardian shows my PC is sending packets to IP addresses, unrelated to any known software on my PC, on sequential ports.
Router security logs are showing [DoS Attack: IP Spoofing] from source: 192.168.1.1 (<== My routers IP in the LAN) this is also on sequential ports.
Yahoo Mail has notified me that someone else has accessed my email account from Japan and Spain.
Now it seems obvious to me that the IP addresses that my PC is sending the information to are fake, as well as the IPs that yahoo detected as accessing my email address. Therefore, it would appear that I am being attacked by someone and I want to know how I can stop it. As of typing this I finished a virus scan with COMODO Internet Security a few hours ago and it found nothing. I have also run Spybot Search & Destroy and it came up clean as well.