Difference Between Virus,Worms,Trojan and Spyware

Difference Between Virus,Worms,Trojan and Spyware

We all have hrd the terms Virus,Worms,trojans and spyware but only a few of us know the difference between them.We rlly consider everything that is detected by an antivirus as virus but this is not the case.The antivirus not only provides protection against viruses but it also protects us from trojans,worms and spy.All these can be harmful to your computer hardware and software.Today I will differentiate all theseterms from ch other .Ok lets start from the introduction of viruses
Virus:A virus is a self repliing program that attaches itself to an executable file.When the file is executed the virus automatically gets executed and enters into system memory .Once it enters into system memory it either srches for other files that can be infected or stays in the background and infect the files that are uses the virus infected program.
Worms:Worms are very similar to viruses but differ in way that they donot bind themselves to executable files instd to replie themselves they uses the network.If you find excessive use of your network bandwidth then you may be infected by a worm.So,a worm donot require a user to execute any file for its execution it can work without user intervention.
Trojan Horse: A trojan horse is harmful program which may seem harmless to the user before its installation but instd it is programmed or reverse engineered to facilitate unauthorised remote access to the computer.Trojan’s do not replie themselves.
Spyware:A spyware is a program that secretly monitor and collects pieces of information.They usually run in stlth mode and cannot be detected sily. loggers is a grt example of spyware software.These are not limited to just spying but can also send data to remote computers .
-->