Basically, any antivirus program will protect your computer against all kinds of malware. We’re talking about more than just viruses (unwanted, harmful programs).
Spyware (programs that track your activity and send data to another computer), Trojans (malicious programs designed to look harmless), rootkits (applications that hide viruses and allow them to access the innermost parts of your PC), and ransomware (programs that require you to pay a “ransom” to get your computer back to working order) are all on the antivirus version of the no-fly list. Other programs, like adware, are flagged as untrustworthy even if they’re not actively harmful. Your antivirus may see them as a nuisance and treat them accordingly.