Many people still think that malware is a software that completely disrupts normal functioning of PCs. If your computer is working tip-top, it means it’s not infected, right? Wrong. Malware creators are not your bored cyber-cowboys anymore. The main goal of cybercriminals is not to make a cyber-badaboom just for kicks, but to earn money. In many cases this goal dictates completely opposite behaviour of malware: the best one is the least visible to users.