What is this?(strange referer)
 

I was reading over my stats today, for my site cockhungryhoes.com and I noticed this. http://www.cockhungryhoes.com.paidiji.cn/
What is that?

paidiji.cn with a few subdomains tacked on in the back?

Ya now I happen to be doing something else and noticed that in my source code at the bottom of the page, was a bunch of code with ads for viagra, and img scr="http://www.thehun.com" I deleted that. I am now looking for it on other pages. I guess my ftp was hacked. I change that password freq.

This was the code I deleted

Girls performing Anal Gaping Anal to mouth Anal dildo

Viagra Online Cheapest Viagra Buy it Online Now Buy Viagra Online

Nothing looks like malware or anything its just I didn't write it, and didn't put it there. Never had that happen before. I am asumming it's just some sort of back link spam. I am more worried about my FTP, and getting flagged for hiddin text.

Might be referrer spam. One form of it is sending fake hits to a page so the webmaster will see it then click on the site to investigate (as you and I did). I went to that page and noticed what looks like stats. It appears they are trying to get webmasters to sign up to that program using their affiliate code.

With the crap placed on your page, that looks like backlink spam to me. If there is no commenting system or such, yes, it looks like you got hacked. Changing your password may help, but there are many ways they may have gotten in. If you do not have a dedicated box, I would tell your host about this. Check you linking codes to sponsors especially and view source on many pages to check for adware or such that may be getting sent to your surfers.