I have a blog for several years and this is the first time I've encountered a virus like this. The malicious code is under the current theme/footer.php. I've removed it twice already and it comes back every 3 days.
I need it completely removed from any file so it will never comeback.
check my reviews please, I have a lot of experience with wordpress and cleaning sites as well. I would like work with you in this project. I'm really interested and ready to start right away. Best regards.