Which of the following is false about Trojan horse?
1
Trojan horse can inject themselves into other files or otherwise propagate themselves.
2
Trojan horse is a software that is designed to be spread from one computer to another, often sent as an email attachment.
3
Trojan horse refers to tricking someone into inviting an attacker into a securely protected area.
4
Trojan horse is a malicious bit of attacking code or software that tricks users into running it willingly, by hiding behind a legitimate program.
5
All of the above