Trojan horse is a common type of computer virus. The name comes from the history of the Trojan War, in which the Greeks sent a large wooden horse filled with Greek soldiers into the city as a gift and then master the Trojans.

Trojan horse virus works on the same principle, disguised as a program that appears legitimate, only to trick users into installing them.

Here are the common types of attacks carried out by a Trojan horse:

Steal information

Some kind of Trojan horses  infect computers and steal valuable information such as bank accounts, credit card information, or other types of sensitive data. This type of Trojan horse virus type generally also has a key-logger that records every keystroke on the keyboard.

Trojan horse virus presents itself in the application form or to hide in the application itself. Trojan horses usually do not spread or cause any damage to a user clicks on or activate the program.

Basically a Trojan horse has to be executed in order to work. Most often Trojan horse designed to allow the manufacturer is able to access the infected computer remotely.

Trojan Horse Infection origin

Because Trojan horse virus hidden inside or disguised as an application, they must be obtained from somewhere. Infection is usually acquired through email attachments. Immediately after the attachment is executed (clicked) Trojan infects a computer is active immediately.

Trojans can also be derived from the download software, transfer files, as well as various other ways. Because the Trojan must be enabled, as long as the downloaded file is not touched, the infection will not occur.