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what is a computer virus

A computer virus is a malicious program that self-replicates by copying itself to another program. In other words, the computer virus spreads by itself into other executable code or documents. It is quite easy and simple for the viruses to sneak into a computer by dodging the defense systems.

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what is a computer virus

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  1. What is a Computer Virus?

  2. CLASSIC VIRUS Classic virus is a term that was coined in 1983. These viruses are malicious programs that rewrite existing computer code on your computer. Classic viruses are not so much unwanted additions to your system as they are mutations of existing code .

  3. TROJANS Trojans, or Trojan Horses, are additions to your system. These malicious programs masquerade as legitimate files in your email, deceiving you into willfully adding them to your hard drive. Trojans rely on you to intentionally open your computer to them. Once on your machine, Trojans then function as independent programs that operate secretly. Trojans commonly steal passwords or perform denial of service (overload your system) attacks. Examples of Trojans include Backdoor and Nuker.

  4. For Norton setup and installation you can follow the aforementioned steps and can activate your product. Protect your Pc/laptop and other devices with best Norton.com/setup Installation.

  5. WORMS Worms, or Internet Worms, are also unwanted additions to your system. Worms are different from Trojans, though, because they copy themselves without your direct assistance... they robotically worm their way into your email, and begin broadcasting copies of themselves without permission. Because they do not require user intervention to reproduce, worms reproduce at an alarming rate. Examples of worms include Scalper, SoBig, and Swen.

  6. ADWARE AND SPYWARE Adware and Spyware are cousins to trojans, worms, and viruses. These programs lurk on your machine. Adware and spyware are designed to observe your Internet habits and then pummel you with advertising, or to report back to their owners via secret messages. Sometimes, these products will even use your hard drive to store and broadcast pornography and advertising back to the Internet.

  7. These semantics and definitions of viruses/malware can be very obscure to the non-technical user. However, it isn't crucial to distinguish between these products technically. What is important is how you consciously defend against these malware infections.

  8. Thanks for watching For more details visit: www.norton.com/setup

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