I assume this
Code:
www.minibuggy.net/forum/redirect-to
is the result of a link anonymizer/redirecter (dbseo?)?
Maybe start by searching your post table in phpmyadmin to find the link to the actual bad site:
Code:
anesthesiabooks.com
--------------- Added [DATE]1482053914[/DATE] at [TIME]1482053914[/TIME] ---------------
Also, I got a filestore72.info hit on a link from a google site search...