Explain what are these type of virus or malicious activitie: phising, troyan and worm. Explain also what are the virus, and why?

Virus trojans: it is a virus that hides behin a pogram like a video game

Phihning: this new way to get your personal data is to blacmail you or get you bank account info
Types of viruses:
Zombie: once infetacdo the terminal happens to work for the virus creator