I run Wordpress SEO and Wordfence. Wordfence has recently begun identifying this problem upon scan which traces back to Yoast. The warning "This file contains a suspected malware URL listed on Google's list of malware sites. Wordfence decodes base64 when scanning files so the URL may not be visible if you view this file. The URL is: http://weavertheme.com/%5C" It identifies this in backup db sql files going back months.
Viewing the identified file via wordfence shows this:
"We now also support the embed codes for YouTube and Vimeo videos from the popular Weaver theme, "
And I've subsequently found that url is associated with a Yoast January blog post about a video plugin which is advertised within the Wordpress SEO plugin heavily.
However, that post is not reposted on my site yet the post is there when I view the file. Making matters more mysterious to me is that wordfence is identifying this in every single backup db sql file but nowhere else.
Can you point me in the right direction to understand what to do? I'm google bleary and have spent hours on this.