So the yahoo counter is saved in the site description field on the database and I currently don't have access to the database but I will get rid of it ASAP. Also, when I first put up the forum some random jumble showed up in the header and when I viewed the source I noticed the yahoo counter in the same place but it didn't come up as a trojan on Avast, my guess was it was done incorrectly. I deleted the data from the database and didn't think anything of it, now it's back. I'm wondering if there is a way I can further protect myself from this. After googleing the yahoo counter thing I found that a couple people had this problem with IXHosting which is the host used by my church. Could it be the hosts security problem? Because I use the same forum script on my personal website, jaswin.net, and I use 1and1 and have never had this issue with that site.
EDIT: I deleted the data from the database but the script kept coming back. I then decided to delete the site description placeholder from the template and it seems to have fixed the issue.