Hello,
Avast blocks social network plugins from addthis.com, we have implemented this plugin through our whole site and now avast gives always warnings that malware is spread. This must be a false positive!!! Please fix this as soon as possible!!
and what does avast say?..a screenshot always help 
you can report False Positive here http://www.avast.com/contact-form.php?
also include a link to this topic…