Panda Security's PandaLabs recently announced the release of its Quarterly Report for Q1 2013, which states that more than six and a half million new malware samples were created between January and March of this year -- and Trojans represented almost three out of every four new malware samples in circulation during the same time period.

The report also states that Trojans caused 79.93 percent of all computer infections worldwide in Q1 2013. "Trojans are cyber crooks' weapon of choice, which explains why they account for most new specimens in circulation and infections triggered in the first quarter of the year," PandaLabs technical director Luis Corrons said in a statement.

According to the report, the average number of PCs infected worldwide stands at 31.13 percent. China has the most infections, with more than 50 percent of computers infected, followed by Ecuador at 41.01 percent, Turkey at 40.38 percent, Argentina at 37.77 percent, Peru at 37.43 percent, and Taiwan at 36.48 percent.

Conversely, Finland has the fewest infections, at 17 percent, followed by Sweden at 20 percent, Switzerland at 20.99 percent, the United Kingdom at 21.89 percent, Norway at 22.57 percent, and Japan at 22.82 percent.