What is the most common kind of trojan horse?

In computer security, a virus is a kind of harmful code or program that self-replicates by placing its code into other programs.  https://catbitcoin.com/?p=827 As a result, infected computer systems can spread out the infection to other computers. Infections are often spread by email attachments, social media links, and online ads.  find more The most common kind of virus is theTrojan horse, which tricks users into clicking on a malicious link or e-mail attachment.