Trends in Malware in 2017
Malware is software used by hackers to infect computers, tablets, and mobile devices, usually by exploiting bugs or vulnerabilities. It can then spy on users, steal information, take over devices, or disrupt normal operating functions. It also enables criminals to steal and profit from digital currencies like bitcoin.
Viruses, Trojans, worms, keyloggers, and adware are the most common types of malware. Often, cybercriminals hide the malware code inside other programs that users would normally download and install (like pirated copies of popular software), or they can use social engineering tricks like phishing to spread infected links, files, or applications.
A rogue program that secretly tracks everything you type on your keyboard is known as a keylogger. It sends the gathered data to an attacker, who could use it to figure out passwords and usernames or to steal credit card information. A program that displays popup ads on the screen is called adware. It may also install unauthorized apps on your device, change system configurations, or hijack your web browser to redirect you to malicious websites that display advertisements.
Among the most dangerous types of malware is ransomware, which encrypts victims’ files and demands payment to unlock them. In 2017, cryptojacking—a form of malware that uses other people’s devices to mine cryptocurrency—returned to prominence, riding the wave of popularity enjoyed by digital currencies. Other trends in malware include attacks targeting IoT devices, which are often less protected than computer systems and networks.