Well there are cases when the VT scan cannot be run. For instance if one of the the avast shields is blocking connection to a particular site. In such cases the VT url scan could come up with an error. For similar results the avast shields can beat a certain DrWeb url scan to finalize. Checking the search result page in google (without clicking the actual search results for the URL) will give you a likely reason for such behaviour, because such malware sites could also be blocked by BitDefender's TrafficLight, WOT, M86 security browsing or Google Safebrowsing etc. And these red alerts can also be read next to the results on the Google search result page. Also trying to visit the blocked site with the malzilla browser or a dscription with parts of active code represented or viewing the results of a bad iFrame scan result or visiting a malware page via a proxy could trigger the avast shield to disconnect when malcode is found. In general our users should be very, very grateful for that profound shield protection. It will provide you with another near escape, my friends,
polonus
