34 per cent of all existing malware has been created by cyber-criminals in 2010. Thailand has the most infected PCs in the world with 70,000 infected PCs. The banking Trojan remains the most widespread of all malware, accounting for 56 per cent. Spam continues to rise despite the fact that botnets such as Mariposa and Bredolad were taken down. PandaLabs believes that many of the trends of 2010 will continue in 2011, with growing examples of cyber-activism, attacks on mobile phones and tablets and more.”]
Source: https://www.csoonline.com/article/2126608/study–third-of-all-malware-in-history-created-in-2010.html