There are many computer viruses and malware out there in the cyber world. The number of viruses is increasing day by day and it is difficult to say exactly how many viruses are there. Some antivirus companies claim to detect around 100,000 new viruses every day.

Viruses can be divided into different categories such as system files virus, boot sector virus, macro virus, script virus, file infector virus, and Trojan horse. Different viruses have different capabilities and can infect different parts of the computer. For example, a system file virus can infect the system files on the computer and make …