Despite Trojans have continued to be the most common security threat, the company’s anti-malware laboratory has observed a wide variety of attacks, with a notable resurgence of ransomware (CryptoLocker being one of the nastiest examples).
The proportion of infected computers around the world was 31.53 percent, very similar to the 2012 figures.
Besides offering an overview of the most significant events in the computer security field, the 2013 Annual Security Report also forecasts future trends for 2014. Much of 2014’s headlines will focus on the Internet of Things (IoT) and Android devices, which will continue to be exploited by attackers to steal users’ data and money.
PandaLabs expects to see hundreds of thousands of new strains of Android-targeting malware in circulation. 2013 saw a large number of Android scams that used malicious ads in legitimate apps, and it has been estimated that last year alone cyber-criminals released more than two million new malware threats for Android.
Social media attacks also grabbed headlines. The number of account hijacking attempts rose spectacularly, affecting companies, celebrities and even politicians.
Looking at the types of malware that were created, PandaLabs identified Trojans as being the top threat, accounting for 77.11 percent of all new malware. There was a significant growth in the number of viruses in circulation, rising from 9.67 percent in 2012 to 13.30 percent in 2013. “This increase is mainly down to two particular virus families: Sality and Xpiro. The first virus family has been around a long time, whereas the second one is more recent and capable of infecting executable files on 32-bit and 64-bit systems,” said Luis Corrons, technical director of PandaLabs.
When it comes to the number of infections caused by each malware category, data gathered by Panda Security’s Collective Intelligence platform indicates that three out of every four malware infections were caused by Trojans (78.97 percent), followed by viruses (6.89 percent) and worms (5.83 percent). “It seems that cyber-criminals managed to infect more computers with Trojans in 2013 than in previous years. In 2011, Trojans accounted for 66 percent of all computer infections, whereas this percentage rose to 76 percent in 2012. This growing trend was confirmed in 2013,” said Corrons.
Malware is a global plague, but some countries are affected more than others. The countries leading the list of most infections are China, Turkey and Ecuador, with 54.03, 42.15 and 40.35 percent of infected computers respectively. Nine of the ten least infected countries are in Europe with the only exception being Japan. The ranking is topped by Scandinavian countries: Sweden (20.28 percent of infected PCs), followed by Norway (21.13 percent), and Finland (21.22 percent).