What is the most common kind of spyware?

According to a report from cybersecurity firm Kaspersky, the most typical kind of spyware is a trojan called "Trojan-Spy. Win32.Zbot."  https://scarabnet.org/?p=1424 This trojan is utilized to steal delicate info from contaminated computers, including login qualifications, financial info, and other personal data. This kind of spyware is normally spread through phishing e-mails or infected sites. Once set up on a victim's computer, the trojan can be used to remotely control the maker and collect data from it.