Remove backlink from php

Hi,
we have a joomla template and probably in somewhere in joomla but may in template contains a bad backlink, we see through firebug but I can not find it in any of the php/html files of the joomla or tempalte
If anyone can give us some information about this, or if it is possible with a small fee to help us, we would definitely appreciate any help

Thanks in advance

See original post by Darkmesaia