I just checked my WordPress site (Wherehouse MKE) and there is this bar that runs across the top of the page and when you click anywhere on the site it wants to open a spam page. Lucky the functionality of the site does not seem to be too compromised and this does not apply to the mobile version using chrome on an iPhone.
I am aware that many hacks can be different and it is very hard to find them and fix sites but I would appreciate pointers and helpful hints. The only reason I have not upload one of my total backups is because I am trying to fix this in a way that I don't loose orders and customer data off of the site.
Steps that I have taken to try to hunt down this hack are from this post here. I have wordfence running a scan and I will report back if I find any script injections.