What Is Computer Virus

what is computer virus

Welcome to BCtechy.com. In this article, we going to discuss what is computer virus and how the computer virus spread and how to protect your computer from virus. So without wasting no more time.

Let’s Begin the topic about what is computer virus:

Computer Virus Definition:

Short Note about the computer virus

What is computer virus and it's types (short note) 1

A computer virus, much like some kind of flu virus, which is designed to spread from the host(user) to host(user) and has the ability to duplicate itself. Similarly, Like viruses cannot reproduce without a host cell, and the same thing applies on computer viruses, cannot reproduce and spread without programmings such as a document or file. In the process, a virus has the potential to cause unexpected or damaging effects, such as harming the system software by corrupting or destroying data.

How does a computer virus attack?

While some viruses can be playful in intent and effect, others can have profound and damaging effects, such as erasing data or causing permanent damage to your hard disk, and worst yet, some are even designed with financial gains in mind.

How do computer viruses spread?

how computer virus spread

In today’s constantly connected world you can contract a computer virus in many ways, some more obvious than others. Viruses can be spread through email and text message attachments, Internet file downloads, social media scam links, and even your mobile devices and smartphones can become infected with mobile viruses through shady App downloads. Viruses can hide disguised as attachments of socially shareable content such as funny images, greeting cards, or audio and video files.

To avoid contact with a virus it’s important to exercise caution when surfing the web, downloading files, and opening links or attachments. As a best practice, never download text or email attachments that you’re not expecting, or files from websites you don’t trust.


A computer virus is a malicious code that replicates by copying itself to another program, computer boot sector or document and changes how a computer works. The virus requires someone to knowingly or unknowingly spread the infection without the knowledge or permission of a user or system administrator. In contrast, a computer worm is stand-alone programming that does not need to copy itself to a host program or require human interaction to spread. Viruses and worms may also be referred to as malware.

What is a computer Virus:

A pc virus is a malicious program designed to disperse to other computers by integrating herself into legitimate programs called guests. It can give or take seriously harm the functions of the infected computer. It may spread through any means of exchange of digital information such as pc networks and CD ROMs, Universal Serial Bus keys, etc. Its name stems from an analogy with biological viruses since it’s similarities in how it is spread using the reproductive capacity of the host cell. It assigns the term pc virus in pc and molecular biologist Leonard Adleman. Computer viruses aren’t to be confused with computer worms, that are programs that may spread and replicate by themselves without contaminating the host very used and misused the term virus to designate any program.

In a wide sense, is generally used and misused the term virus to designate any kind of malware. The total number of malicious software known to be approximately 95 000 according to Sophos. Nonetheless, with an interest in inflating the number of viruses, it finds determined by the WildList Organization, each antivirus seller with an interest in inflating the number of viruses it finds. Although they are extremely few, additionally, there are systems like Unix / Linux, but no outbreaks like Systems are least affected FreeBSD that focuses its development on security, in addition to Netware and OS / 2 to few to provide a programmer known viruses. The remainder is principally aimed at OS which is dispersed over the previous few years, since the 27 viruses – none being harmful – enforced Mac OS 9 and its predecessors. Systems are least affected FreeBSD that focuses its development on security, as well as Netware and OS / 2 too few to provide a developer known viruses.

Viruses are frequently subject to false alarms which the rumor spread, bulky freight. A few first applications of the type were mere amusement, a game between portions of the OS completely healthy. Information about Bell, Core War, created in 1970 in that they’ve today. The first program of this type was mere entertainment, a game between 3 information of Bell, Core War, created in 1970 in that the laboratory of the company. For this game, each player writes a program, then loaded into RAM. The OS, that clearly opposing the location of the program. The goal of the game is to destroy the opposing programs while ensuring its own proliferation. The players don’t. The software is able to copy itself, repair itself, to move themselves to different regions of memory and attack the software by writing arbitrary opponent in other memory areas.

Common Computer Virus

The Search Engine Redirect virus is a very common infection that sends your look engine links to arbitrary marketing sites. This infection, although common, is actually possibly the toughest to remove, and many people find that hot antivirus applications are in reality unable to eliminate it. If that is the case, that tutorial has to clarify what antivirus tools will not work to eliminate this virus, and, the right way to remove it. You may typically tell if you have that virus by how it redirects your search engine links. Each time you search for something on Google/Yahoo/Bing, this virus will basically take the links you click and send them to a site that is unrelated to what you were looking for.

Ordinarily, this infection will redirect your links two or three times


before ultimately taking you to the proper website. In case you have got this virus, you can have discovered that popular antivirus programs are in reality unable to remove it. It is due to the way wherein this infection works – it is designed to install itself on your pc, change a few settings and after that uninstall itself. It’s often called a Browser hijack infection, because of how it hijacks the procedures your browser needs to take you to the several links which you’d like. Every time you click a link on an internet search engine, you are actually redirected via a special link.


The Search Engine Redirect virus may essentially hijack this organic redirect, and cause your links to appear as advertisements websites. Because of the way this infection just Melts away onto your system, the fact is that you need to be able to use a program that’s going to target the files & settings it has infected. Many people try, understandably, to use a popular antivirus program to remove the infection, but these tools are only designed to identify infected applications/files which typical viruses use. In order to get rid of this virus, you’ll need to be capable to repair specific files which it infects, and that is only possible with the aid of your special type of anti-virus tool, which may be targeted into a specific set of files. Such tools as ComboFix are able to eliminate this disease very easily and may be downloaded online. You can remove Search Engine Redirect by using the tutorial & tools, such as ComboFix.


Computer Virus Types

common computer virus

Everyone should understand how to locate hidden files on the pc. Why could there be hidden files on your pc to start with? The greater likely reason is that your computer has taken a virus or some kind of spyware, adware or malware. Malware is, basically, bad software which has been created to hide on your pc and monitor your activities. If you wish to remove it, you need to understand how to locate hidden files on your pc and remove them. Finding hidden files on your pc isn’t easy, though. Remember that malware programs are designed to conceal well.

Otherwise, it’s not possible for them to monitor and change your computer files without being noticed. A lot of the anti-malware applications out there are rather complicated. They’ve to be, so as to monitor hidden files on your pc. They operate different algorithms and they each have another software foundation. Put simply, some programs are aimed toward removing certain forms of malware, like spyware or adware. Other programs are a bit more complicated but detect all kinds of malware files at once. The portions of your computer which are susceptible to malware infections are the hard disk drive along with other media storage types.

The best way to defend them is to install antivirus applications on your pc. A good antivirus security program may easily find hidden files on your pc. If you do not have such an antivirus program installed, you’re leaving your computer susceptible to a spyware attack. You just follow the simple instructions and, once it scans for malware, then you will be motivated to quarantine or delete infections. Obviously, with the computer security applications available, the choices may be the source of confusion. On the flip side, having more features means you may select a program that’s customized to fit your needs.

And on the flip side occasionally having numerous choices can be overpowering. If you aren’t certain what you’re searching for to start with, having that many choices can only make you more confused. The very best way to cure that confusion is to shop for a good security program online. This way, you can compare costs and features side by side and select the one which works for you. There are a few things that you should look for in a good antivirus program.

First, look for one that’s reliable and has a good reputation. Obviously, less affordable or more popular doesn’t always mean better. Try getting a trial version of an antispyware program. Ensure you choose a program that’s simple to understand and operate. By following these easy steps, you may easily find hidden files on your pc and remove them.

How To Protect Your Computer From Virus

protect from computer virus

To fight the problem of viruses, Windows 10 contains Windows Defender, a free security, and anti-virus program. With regards to viruses, everything is suspect. Viruses travel not just via email messages, files, programs, networks, and flash drives, but additionally, in screensavers, themes, toolbars, together with other Windows add-ons. Windows Defender scans all that enters your computer, whether via downloads, email, networks, messaging programs, flash drives, or disks. Unless of course, you tell it to not, Windows Defender casts a watchful eye on your own OneDrive files, too. When Windows Defender finds something evil trying to enter your personal computer, it allows you to know with a message, as shown here.

Windows DefenderWhat is computer virus and it's types (short note) 2

Then Windows Defender rapidly quarantines the virus before it’s got a possibility to infect your computer. Windows Defender automatically upgrades itself to recognize new viruses, and it scans your Computer for threats in the backdrop. But if your Personal Computer acts strangely, then tell Windows Defender to scan your Personal Computer immediately by following the steps below! Click the taskbars Windows Defender icon near the clock. Windows Defender appears. Click the programs Scan Now button. Windows Defender instantly performs a fast scan of your PC. Despite Windows Defender seeing your back, follow these principles to lessen your infection risk! Open only attachments that you’re expecting.

For instance, if you get a message saying someone wants to be a Facebook friend, do not click it. Rather, visit Facebook in the browser and look to see if the person is listed on your wait to be friended list. The more emailed links you could avoid, the safer you will be. If you receive an important looking email from a bank which asks you to click on a link and enter your name and password, then don’t do it. Instead, visit your financial institutions’ website through your browser and log in there. Odds are good which there’s nothing wrong with your own account, and which email was only attempting to steal your username and password.

– Updates for Windows Defender arrive automatically via Windows Update. Windows 10 keeps Windows Update running continuously, so you do not need to worry about maintaining Windows Defender update. If you prefer running a 3rd party antivirus programs, you are welcome to do so. It’ll turn off Windows Defender automatically as part of the installation process.

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Final Words:

Thanks for reading my article. I hope this information is informative to you about what is computer virus and how to protect your computer from virus. if you like this article don’t forget to share with your friends. Till then bye bye and keep smiling 🙂

Thanks for visiting BCtechy:)


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