There is no definitive response to this concern as the most typical kind of malware varies depending on which area of the world you lie in, and also changes with time. Some of the most typical types of malware consist of viruses, worms, Trojan horses, and adware.
this page Infections are one of the earliest and most common types of malware. Adware is a type of malware that shows marketing on a computer system, typically in a pop-up window.
Malware is continuously evolving, and brand-new types are continuously being produced. The types talked about above are some of the most common that you might encounter.