What is a virus? From Mary Landesman, your guide to Antivirus Software, resources to help you better understand malware and its impact.

To understand what a boot sector virus is, one must first understand what a boot sector does. This tutorial provides the details.

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RATs, or Remote Access Trojans, provide a “backdoor” into the system through which the unscrupulous hacker can snoop into your system – even running other malicious code if s/he chooses.

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A Trojan is a program that appears to be legitimate, but in fact does something malicious.

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Antivirus vendors generally assign virus names consisting of a When attempting to find information about a particular virus, it can be helpful to understand how the virus names are formed.

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The term ‘virus’ and its definition may have outlived its prime. In today’s hostile computing environment, one would do better to ask, “what is malware?”

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Trojans are often used to launch Distributed Denial of Service (DDoS) attacks against targeted systems, but just what is a DDoS attack and how are they performed?

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In the computer world, a Trojan can be used to turn your PC into their own computing matter – effectively turning it into a zombie machine.

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Whether you need help understanding Windows or want to know what the difference is between a virus and a Trojan – and why it matters – these free online courses can help.

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