What Can a Virus Protection Do for You?

What Can a Virus Protection Do for You?

With the proliferation of the Internet in every aspect of human life, computer viruses are also multiplying in leaps and bounds. Initially, viruses were program codes, which used to disrupt regular computer-related activities. Those viruses either corrupted a particular computer application or attacked the whole system. Today, as the Internet based services and data transfer system have modernized, viruses have taken on a new dimension.

Viruses have become a source of more menacing activities such as seizing official data, corrupting important files, getting into a computer memory, seizing confidential personal data and hacking important sites.

Computer viruses can be passed from computer to computer through interaction over the Internet or through external devices. Often they are disguised as important or attractive downloadable files or emails sent by trustworthy links or friends. These viruses can be easily passed onto a computer without the owner’s knowledge.

Types of Viruses:

Everyone fears being attacked by a computer virus, but few computer users show any interest in learning about virus protection. Researchers who spend a lot of time learning and understanding computer viruses, have categorized such viruses into 9 basic categories:

  1. Boot Sector Virus: This kind of browser attack infects the boot sector of a PC, thereby corrupting the computer altogether.
  2. Browser Hijacker: This type of virus spreads through voluntary downloads of files which, at first, seems harmless. It seizes certain browser functions and continuously redirects the browser to an unknown destination.
  3. Direct Action Virus: This virus is considered “non-resident” and only becomes active when the file containing the virus is opened.
  4. File Infector Virus: This virus takes shelter in a file, and becomes active when the file is executed. It attaches itself to files such as word processors, spreadsheet applications or computer games. It damages data or part of information in the file, thus disturbing the entire operation related with the file.
  5. Macro Virus: This affects certain common programs and codes. Such programs destabilize other files, thus making an overall disruption in the computer function.
  6. Polymorphic Virus: This virus mutates over time. That means after each activity, it changes the way it looks, to make detection more difficult. It also changes encryption algorithm periodically, thus guarding itself against virus protection software.
  7. Multipartite Virus: This virus attracts a computer from various angles, i.e. corrupting different types of operating programs at a time.
  8. Resident Virus: It resides in the system’s memory and infect any file on a computer. It doesn’t depend on supporting files once entered into the computer system.
  9. Web Scripting Virus: Many websites execute complex codes to provide interesting content for the user, but these codes may sometimes pose serious problems by bringing viruses into the system without any knowledge of the webmaster.
  10. Trojan Virus: In Homer’s epic Illiad, Trojan was a tactic adopted by Greek army to hide in giant wooden horses, which were sent as a gift to the city of Troy. Similarly, Trojan viruses disguise themselves as a document or file of interest. These viruses normally don’t multiply themselves, but weaken the computer system or virus protection software, thus making the computer susceptible to other kinds of attacks.
  11. Worm Virus: This type of virus is a program which once inside a computer system, multiplies and scans for faults and loop-holes in the computer virus protection system. It then attempts to spread through a large network by taking advantage of the weaker aspects of the virus protection system.
  12. E-mail Virus: As the name suggests, it comes by hiding itself in some interesting or important email. Once opened, it enters into the user’s computer, thus making it vulnerable to certain kinds of attacks, damages or disruptions.

Different Aspects of Virus Protection:

Computers, both with and without access to the Internet, need to be completely protected from viruses of any kind. As data sharing through the Internet becomes a norm, viruses flourish side by side. Like biological viruses, protection from computer viruses is also possible through mass awareness and adoption of proper preventive methods. Here are some very common preventive steps which one can follow to keep the viruses at bay:

  1. The user should use the best antivirus or virus protection software available. It’s not hard to find the most suitable antivirus software, you can find the one that best suits your needs here. It should have a top-notch scanning system, big database of existing viruses and the ability to regularly update their database, since thousands of new viruses are released every day.
  2. Fully backing up your whole system regularly is a must. If possible, such backup can be stored in multiple locations.
  3. Do not to read unsolicited emails or download from unknown senders or links.
  4. Strictly following the instructions of the virus protection software that you downloaded (#1) can keep the system clean and virus free. So making sure you upgrade your virus protection software regularly is necessary.

All these steps keep your computer and network systems healthy and protected from external threats. A little knowledge and proper Internet browsing can keep your system in fine tune. 



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