What is a computer virus | it helps to know a little about them

If you own a computer, you have undoubtedly heard a lot about computer viruses because there are a lot of misconceptions about them that are obvious about computer viruses. problems that can cause viruses, it helps to know a little about them.


What is a computer virus?

A computer virus is a type of computer program that is executed when repeated by modifying another computer program and inserting its coma. When this replication is successful, the affected areas are said to be infected with computer viruses. Viruses are generally made for illegal purposes. People produce viruses for various reasons ranging from mild mischief to malicious destruction.

The history of the first computer virus

The first computer virus was developed in 1971, called the ‘Creeper System’. The virus could replicate itself, filling the hard drive, which could make the computer no longer work, the virus was created in the US by BBN technology. To counter this creeper, American computer programmer Ray Tomlinson developed the reaper. developed that reaper.

Difference between a computer virus

Viruses, Malware, Ransomware, Spyware, and both are all parts of a class of software called malware the overwhelming majority of malware is created to make money illegally often by stealing sensitive and confidential information from victim’s computers and mobile devices.

Malware can also be used for cyber vandalism cyber espionage hacktivism cyber warfare also various other reasons malware can gain entry onto your computer via questionable file downloads visiting infected websites either through an email containing a seemingly benign link or attachment

Common types of malware


Viruses almost viruses are attached to an executable file which means the virus may exist on a system but will not spread unit a user opens the infected program viruses often begin on the internet and spread if downloading a file infected with a virus peer-to-peer data and file-sharing or email attachment.


Trojans is a harmful piece of software that looks legitimate users are typically tricked into loading and executing it on their system Trojans can not only steal your sensitive data They can give cyber crooks access to your system. Trojans have been hired to gain access to your computer’s financial and personal information.


Ransomware holds your pc hostage and demands money it locks up your computer threatening to destroy data demanding ransom or payment for the release of your data files or to regain the ability to use your computer again.


Spyware secretly accumulates private information about the user activity such as internet usage and logs passwords via the process of keylogging to steal passwords and other sensitive data.


Worms can replicate themselves and infect multiple computers at a network, causing major damage network bugs often use computer networks to slow down traffic and rely on security failures. such as outdated operating systems and antivirus programs installed.

While contrast, a virus requires the spread of an infected host file worm to do standalone software, and no-host or human support is needed to spread it in the best way to protect your system from malware is to keep your operating system clean by downloading regular patches updates also making sure that your computer is protected by the latest antivirus software from a trusted vendor.

How computer viruses spread

5 most common ways by which computer virus spreads

1 opening attachments about links from unknown or spoofed emails

That is one most common way from getting infected with any virus or ransomware emails are spoofed to look legitimate An attachment or link will also infect your computer. If clicked on these spoofed emails these days are so well crafted that even an experienced professional can be thrown off guard if not careful. So make sure you pay attention to the details before opening or clicking on anything.

2 downloading software from malicious sites

When your computer gets infected with a virus it’s common for someone to think that it might not be a trusted website it’s a common misconception that viruses only come from inappropriate or problematic websites but viruses are a danger everywhere on the internet even if are downloading software from a trusted source there are still traps that can infect your computer

For example, the user wants to download the google chrome browser and clicks on the link the provide the google chrome download file which the user installs successfully unbeknownst to the user the download package was injected with a virus and the computer has now infected this problem occurs very often.

3 Online advertisements

Malicious ads are also known as malvertising is just another way your computer can get the virus without any realization or traceable evidence criminals often place teen ads on trusted websites and leave them in place for a while to credibility after some time passes they put a malicious code in the ad that infects your computer when clicked on.

4 social media

People are usually more comfortable about clicking on links published on social media sites and links shared by their contacts.

Did you know there was a virus spreading on Facebook that infected thousands of people’s computers this particular virus spread through a video that required a special software plug-in so the user could see the virus captured and recorded passwords used to log into your computer?

5 unpatched software

Differently, you can put your computer at risk of virus infection through unpublished software.

Security holes unknown to that software maker or antivirus vendors are also known as zero-day vulnerabilities.

Its exploits that stem from security holes effects software companies small and large including the likes of Microsoft apple and google.

Did you know that during March 2013 oracle released a popular plug-in on Java, which was used to view content on hackers and browsers, as it would harm hackers to exploit computers without minimal barriers of entry?

What are the signs of a computer virus

Is your computer working strangely, our boxes are telling you on your screen that the computer is infected, are you hearing strange sounds, this means that your computer has been infected with malware, determined It is not always easy to do whether your computer is infected or not. A virus worm trojan or spyware

Because authors of malicious software do their best to disguise their work but some symptoms can help you figure it out here are 6 signs that indicate your computer may be infected

Slower internet and processing

A slow computer does not mean that you have a virus, but if it suddenly changes enough and speeds can be checked.

Unexpected computer behavior

Viruses can do all kinds of strange things on your computer if your computer stops responding to the decision to click to open files on its scroll or acts like it does when the computer is experiencing symptoms of the virus If a key is pressed.

Sudden freezes and crashes

Because viruses damage your hard drive, they can cause your computer to experience a catastrophic failure if you are lucky enough to run antivirus software even after your computer crashes to see if the virus was the cause.

Error messages

One of the most noticeable symptoms of a computer virus is before your computer knows something is wrong, the pop-up messages in the messages that appear suddenly alert you to the missing system of application files.

Missing or extra files

Keep in mind the size of your hard drive. A virus can install copies of itself or unwanted files on your computer virus also unexpectedly delete files.

Hardware and accessory problems

If you suddenly have a problem with your computer’s display, such as screen pixels or color problems, it may be a sign of a virus that is messing with your system. Remember your computer will not always show symptoms if it is infected regularly. Perform a system check and virus scan to make sure your computer is clean, also practice preventive care. Do not click on unfamiliar links and email or pop-up advertisements to protect your computer from exposure.

How to protect against computer virus

  • To protect your computer you should use an anti-virus program like Kaspersky Norton or the built-in windows defender.
  • Keep in mind no antivirus program is perfect to stay safe you should still avoid suspicious-looking ads or downloads
  • Run regular updates to your anti-virus program and also run updates to your operating system to keep your computer running smoothly with the latest version of windows.
  • You should back up your computer regularly One option is to buy an external hard drive and copy your files to it to make this process even easier you can use the software.

By following these tips, you can protect your computer and keep your information safe.

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