I am running an internet cafe and i am using Norton Antivirus (upgraded).But some days ago i was having a problem in my all systems. I am getting a kind of script messages. When i am online and my network connections are ON, i get the message "Oh! My God. Some one killed chineese hacker to monitor ". I keep on getting these messages. Then i installed AVAST. It stopped these script messages but i know that my whole network is infected. Can any one please help me out of that problem. How can i detect and throw out that virus and stop further problems in future.