Content locker from torrent client

If you download in such places, is there a chance it could contain scripts with malware and viruses when you install it??

And if so, is there anyone willing to check it out? you can have a copy as well

What's the product? And where have you found it?

Actually, there is a method posted somewhere of editing templates to then upload them and have yourself another backlink, amongst other things.
Checking for a virus is simple and you probably won't find one, the problem here is unwanted side-effects in your code.
I can't help you with checking the code though, but at least you know what to look for. I would check the footer first.

Hope this helps.