wordpress-4.1.1-sv_SE/wp-includes/version.php

I´ve got trouble! Someone gets in by above file and then I got malvare, who makes my blog, slower than slow. I restored, same again.

I have genesis themes (Bought)
NO plugin, I am blogger. So where? And what to do?
my site are: http://eatinglinks.tk
I took it away/restored, and put in config.php: define(‘WP_HTTP_BLOCK_EXTERNAL’, true); // block external requests. Cos it takes all my gigabytes.