Not sure really were to put this, but my site was hacked via another site on the same server and the other site had an exploit which allowed the hackers to install a rootkit and my sites nearly backup with Debian we were on centos...But will I be dropped from google? or any other search engines? I apologize if this is the wrong area for this thread.
I think you must try to get your site back asap. At least within a week. Don't know much, how the Google and other SE's will react.