Ive gotten the filestore redirect almost everytime requiring a refresh. I got the adult friend finder last night. Today I got a russian hack site I've seen in other places with my job as an IT consultant. You may want to check the dns or nameserver entries on the domain registrar account for this site to make sure thats how it should be. But in any case Im betting on compromised plugins or even compromised ad network frames. I just dealt with the latter. A local legitimate news website infected computers with the crypto locker virus. It wasnt directly the site but the ad network they were using. Just some thoughts .