Between July and September, five million new species of software malicious, PandaLabs reveals in its most recent quarterly report.
The majority of new species registered are related to bank Trojans (71.32%), although adware (13.13%) and spyware (9.16%) have also increased. Traditional viruses accounted for only 4.23 percent of total new threats in the analyzed period.
PandaLabs says it is receiving about 50,000 new copies of malware daily, which compares with the 37,000 of just a few months ago, saying there is no reason to believe that the situation will improve in the near future.
The number of infected computers increased by 15 percent compared to the previous quarter.
More than 37 percent of cases were caused by Trojan horses, while adware was responsible for 18.68 percent of all infections. This particular category has been expanding rapidly due to the greater proliferation of fake antivirus or rogueware programs, pandaLabs said in a statement.
In terms of trends, the quarterly report indicates a marked growth in the distribution of malware across spam, social networks and search engine optimization techniques, which take users to fake web pages where the malware is transferred.
These methods of spreading malware typically use social engineering techniques, exploring a range of topics such as Flu A, Independence Day, speeches by Barack Obama, among others.