htaccess file hacked – advice needed?

1. my websites are hosted with bluehost.com and it apears the file htaccess has been hacked and changed for the root directory.
i have changed my password to the host ac and also removed the old htaccess file.
it had this code in it which appears to be the problem when trying to click the site name from search engine searches it takes you to google only…
the code was :
# Use PHP5 Single php.ini as default
AddHandler application/x-httpd-php5s .php
# BEGIN WordPress
# END WordPress
can anyone tell me what the htaccess file should have in it?
at present it is blank.
many thanks for any help..