Why is the button goes to a site with a virus? Yea... that's a redirect link. I'm guessing you're not using an adblocker which is extremely dangerous on the internet. A lot of sites (legit and not) have malicious ads on their sites, at times without them even knowing about it as ads are targeted at each users interest. I highly suggest getting either ad block plus or ublock to block malicious ads and sketchy redirects. You will need to disable the ad blocker for this site, but outside of this site it can be left on.