But the warning messages show favicon.ico and some image file infect by URL:Mal.
URL:mal means it is on a block list for whatever reason..... does not have to be infected

check your IP against block list here. http://whatismyipaddress.com/blacklist-check
also check here. www.urlquery.net

You can report a possible FP here: http://www.avast.com/contact-form.php
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