The Trojan is another type of malware named after the wooden horse that the Greeks used to infiltrate Troy. This is malware that looks legitimate. Users are usually tricked into it to downloading and running it on their systems.
Once activated, it can carry out any number of attacks on a host, from annoying the user with pop-ups or changing desktops to damaging the host by deleting files, stealing data, or activating and spreading other malware such as viruses.
Trojans are also known to create loopholes to give attackers access to the system. Unlike viruses and worms, Trojans do not replicate, infect other files, and do not replicate themselves.
Trojans are supposed to spread through user interaction, such as opening an email attachment or downloading and launching a file from the Internet.
The Trojan horse has the same cunning as it was named after the mythological Trojan horse.
At first glance, a Trojan horse may seem like a useful piece of software, but it will do damage after it is installed or launched on your computer.
Those who receive the Trojan horse usually tricked them into opening it because they seem to be getting legitimate software or files from a legitimate source.