I visit a certain forum, a Linda Ronstadt fan forum, and since yesterday, I get an Avast popup saying the site is infected with JS:IFrame-CG [trj]
I contacted the Webmaster by email, and he said he does not detect anything.
And I ran full scans after I got the Trojan Horse messages, nothing was found by Avast.
Is this a false positive?
If you need it I can give the URL to the site.