There is no definitive response to this question as the most common kind of malware differs depending upon which region of the world you are located in, and likewise alters with time. Learn More Here Some of the most common types of malware consist of infections, worms, Trojan horses, and adware.
Viruses are one of the oldest and most typical types of malware. Adware is a type of malware that shows advertising on a computer system, often in a pop-up window.
Malware is continuously developing, and new types are continuously being created. However, the types discussed above are a few of the most typical that you might come across.