4/2/2023 0 Comments Detect safe browsing popupJust like the biological varieties, computer viruses each have their own characteristics and means of infection. Let’s take a closer look at some common varieties: Types of computer viruses Different viruses are designed for different tasks. Send spam emails or launch new attacks via the infected device.Īlthough that’s a tall order of damages, an individual virus generally carries out a specific payload.Launch denial-of-service attacks, which slow down or disable websites and networks.Destroy or alter files on the infected device. ![]() The payloads of a computer virus are designed to: In order to spread, viruses require human interaction, like opening an infected email attachment or downloading an infected file from the internet. Once that file is opened, the virus is activated and can infect other files or devices. What is a computer virus?Ī computer virus is a form of malware that replicates itself by attaching to other files on a device or network. It’s considered one of the biggest ransomware attacks in history, affecting over 200,000 computers in over 150 countries. The UK’s National Health Service (NHS) was particularly affected. WannaCry caused considerable disruption and financial damage by targeting businesses, hospitals, and other organizations. It spread itself by scanning the network for other devices with similar security vulnerabilities. It infected devices through the EternalBlue exploit, then encrypted files and demanded bitcoin in exchange for the decryption key.
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