Click fraud still represents an efficient way for cybercriminals to make money. Experts have been analyzing the activities of cybercriminals that rely on the Trojan dubbed Viknok for click fraud operations. Trojan.Viknok has been around since at least April 2013. According to Symantec, the threat is capable of turning infected computers into botnet zombies by obtaining elevated privileges on the operating system, including on the 32- and 64-bit versions of Windows 7. Last month, researchers …