Repair hacked site

I have a wordpress site (and 4 addon domain sites under the main one) that have been hacked. I have access to the server's cpanel but not to the wordpress dashboard.

I have no local backup files and the backup files on server may be good, or maybe not.

Anything you believe you can do??

travelanddo.com (main site)
travelanddo.net
hellenictao.com
kavihastamassage.com
medicaltraveleurope.com