When i go to the 4shared.com website after a few minutes i get an intrusion attemt by "Tray-pc", this is my own computer norton blocked it and shuts the site down . It came up as a "Fake app attack a fake AVdownload request". could i have something on my computer that should not be there?

[edit: Please do not direct link to potentially dangerous websites per the Participation Guidelines and Terms of Service.]
Thanks, I will scan in safe mode to be sure. I did have a look at the "safe web" report for 4shared and i see that a few other people have had the same thing happen to them. On the other hand my friend that goes to the site every day has not found anything wrong with the site.
When i go to the 4shared.com website after a few minutes i get an intrusion attemt by "Tray-pc", this is my own computer norton blocked it and shuts the site down . It came up as a "Fake app attack a fake AVdownload request". could i have something on my computer that should not be there?

[edit: Please do not direct link to potentially dangerous websites per the Participation Guidelines and Terms of Service.]