ScanSafe has issued data on the top three countries hosting Web-based malware including viruses, Trojans, root kits, password stealers and other malicious programs. The USA were first, China ranked second on the list and Germany ranked third:Top 5 Malware Hosts (based on Web malware blocked in the last month by ScanSafe):1. US: 42 per cent2. China: 12 per cent3. Germany: 6 per cent