Hello Luca!
Sorry to hear your site was hacked. This can be hard to fix or it may be an easy fix. When you have a site redirecting to a url like unrestrictedtouchpad.ru, it is commonly due to code being injected into your .htaccess file.
Start at the .htaccess in your root directory and open it in a text editor. Look for code referencing the hack url and remove it. You may need to look throughout the file structure to see if any other .htaccess files were compromised as well.
If this does not fix it, you may need to search through command line for and base_decode Hacks. Check this article on how to do this. Hope this helps.
Sincerely
James R