Blocking unwanted redirects

[Matthew]

I haven't found a definitive answer to this so I hope someone reading
this will able to help.

My site got hit by malware, they included a redirect to
googlebestanalytics.eu is there a way though .htaccess file to
basically block all outgoing requests when a page is being parsed from
accessing this site. The general idea is that even if the site was
hacked again, any scripts that they might embed redirect to the threat
site would be denied by the server.