I know this sounds a bit odd. But I have been having hacking done on my computer and I am locked out of my "su" user now for some reason. My computer cpu is running abnormally high and I think there may be a server placed on my computer..call me paranoid. How can I tell if there is any server or high usage program put on my computer. I am a newbie in ubuntu so thanks for your understanding. :)

Ps I ran netstat as suggested in an ubuntu post..cant make heads or tails of it..