Malware writers are using the big cloud hosting platforms to quickly and effectively serve malware to Internet users, allowing them to bypass detection and geographic blacklisting by serving from a trusted provider. Amazon and GoDaddy were identified as the top malware-hosting providers, with a 16 percent and a 14 percent share, respectively. A single malicious domain was spread across 20 countries, 67 providers and 199 unique IPs evade detection. United States hosts 4.6 times more malware than the next leading country. Malware developers and distributors are utilizing social engineering tactics, including the use of trusted keywords and services.
Source: https://thehackernews.com/2014/01/us-based-cloud-hosting-providers.html