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Difference Between Virus and Trojan

Virus vs Trojan

Summary: Difference Between Virus and Trojan is that computer virus is a potentially damaging computer program that affects, or infects, a computer negatively by altering the way the computer works without the user’s knowledge or permission. While Trojan horse is a program that hides within or looks like a legitimate program. A certain condition or action usually triggers the Trojan horse. Unlike a virus or worm, a Trojan horse does not replicate itself to other computers.

Difference Between Virus and Trojan

Virus

A computer virus is a potentially damaging computer program that affects, or infects, a computer negatively by altering the way the computer works without the user’s knowledge or permission. Once the virus infects the computer, it can spread throughout and may damage files and system software, including the operating system. It is actually a piece of code that can activate its desirable action without user’s permission.

Viruses can also replicate themselves. A simple type of virus can create hundreds of copies of itself and is very easy to produce. But still virus is simple or not, it can harm your computer. The most dangerous types of virus is that which can be transferred automatically across the networks and can harm the whole network.

Trojan

A Trojan horse is a program that hides within or looks like a legitimate program. A certain condition or action usually triggers the Trojan horse. Unlike a virus or worm, a Trojan horse does not replicate itself to other computers. Trojan Mostly looks harmless but it is actually Malcious that can harm your computer. It was named after the Greek Myth about the Trojan War.

According to legends, Greeks made a Large Wooden horse by which they pulled the people of Troy into the city. And at night, there are soldiers who have been hiding in that horse are out and opened the gates to let their fellow soldiers in and overran the city. Trojan force user to install malware which is looking like a legitimate program. And after being installed it can activate any program it wants to in the computer.

Also Read:

Difference Between Virus and Worm

Difference Between Worm and Trojan

Difference Between Virus and Rootkit

Difference Between Trojan and Rootkit

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