Some friends of mine have a website (www.kennelsoffie.dk) and I'm trying to help them when there is any trouble. However this time I, can't figure it out. When I visit the site using Google Chrome, I'm presented with a warning page claiming that the page that I'm trying to visit contains elements from stopssse.info.
I don't know any PHP, so I simply downloaded the complete website including backups of the database (which are .sql files). Then, I searched all the files for stopssse, but I didn't find anything.
I also tested the site with siteadvisor.com it says "We tested this site and didn't find any significant problems".
Can PHP hide a reference to the malware site so I cant find it with a simple search? If so, how can you find it?