Imagine that the installed antivirus program on your computer is configured to identify and blacklist one version of the virus. Polymorphic viruses are stealthy and can go undetected by antivirus programs, that’s what makes them dangerous.Īs the name implies, these types of virus can morph into a different variant every time it replicates, making them difficult to detect. The improvement in BIOS structure has reduced its prevalence in the last couple of years. They are notoriously difficult to get rid of and often require formatting the computer.īoot sector virus is usually spread through removable media like USB and email attachments. The master boot record is the program that contains the booting instructions in a system. Here are 7 of the most common types of computer viruses.īoost sector virus attacks the master boot record. One effective way to protect against these malicious attacks is to be able to identify them. With the increasing threat of a cyberattack on both individuals and businesses, it makes perfect sense to learn more about the most common computer viruses out there and what you can do to protect yourself.Ĭomputer viruses are malicious self-replicating software that causes damage to a system by copying itself into other programs on the device.Ĭomputer viruses are designed to exploit vulnerable systems, hijack the device, and spy or steal personal data in most cases. They range from the harmless, mild harmful to the dangerously malicious viruses. Computer viruses come in different sizes and shapes.
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