There are so many types of computer viruses, computer viruses got their name due to how they infect a computer system, which is similar to how a human person would catch a cold, although a computer system will not see much in the same manner as a human being.
Just the same way health professionals can diagnose your sickness due to the symptoms that your body shows.
IT professionals can also diagnose when there is something wrong with your computer system.
Computer viruses are computer programs that have been written to cause harm to a computer.
They have been in existence a long time ago since the ’70s, and a 15-year old boy created the first known one.
Many people seem to think that computer virus is the same as computer malware, but that is not the case.
A computer virus is a type of computer malware. We discussed a lot about computer malware in our previous where you can get to know a lot about the different types of computer malware and how they can affect your computer system and alter it.
When a computer gets infected by a virus, there are several symptoms that the computer will portray for you to detect that a virus has infected it.
Signs Of A Virus Infected Computer
- The computer becomes slow.
- You realize that some files are missing.
- Storage sometimes goes low.
- Crashes
- Seeing unknown programs
- Security software gets disabled.
- The browser pops up constantly.
- Network activity increases.
There are many computer viruses, and each of them is created to person a specific malicious activity on its victims.
Many people are conversant with the list of things and habits that they have to do to steer clear of an illness or infection.
It is the same way with computer systems. Precautions have to be taken to keep them protected from computer viruses and malware.
To know the kind of protection to take to protect your computer from viruses and malware, you need to understand how the various types of viruses behave.
Below are some ways that the different types of viruses behave when they affect your computer system.
This will help you to know immediately when your computer is suffering from a virus.
Most Common Types Of Computer Viruses
Multipartite Virus
This is the kind of computer virus that can infect the entire computer system. They can spread without any action from the computer user and do so through folders and programs. This makes them a hazardous type of virus.
Resident Virus
This kind of virus affects the RAM 0f the computer system and messes around with the operations of your computer.
This type of virus can even attach itself to your antivirus software, thereby making them hard to remove as they control the means used to remove them.
Direct Action
This kind of computer virus sets its sights on a specific target to infect. It usually targets .exe files by replicating themselves and then infecting the files.
However, it is one of the most straightforward viruses to detect when it infects your computer system, which means that you can easily remove it from your computer once it has been detected.
Overwrite Virus
This virus does precisely as its name suggests. Its nature is to overwrite an existing file so that it can infect it.
It can overwrite things such as folders, programs, and even files.
Browser Hacker
This kind of virus typically infects your internet browser so that it can redirect you to your search inquires and send you malicious websites instead of the actual side you intended to go.
Web Scripting Virus
They hide in the links of code, images, ads, videos, and website code. It can infect a system when the computer user downloads software files and documents from the internet with the virus lurking in it.
It can also infect a system when the user visits a malicious website.
Network Virus
They are the kind that infects the system by traveling through network connections and then replicating themselves with the aid of shared resources.
Boot Sector Virus
This virus will hide on a USB drive or an email attachment and can infect the computer system’s boot record, allowing it to damage the computer system.
File Infector
This virus targets executable files to slow down the computer system and damage the system.
All these are some of the types of computer viruses and their nature of destruction.
Most of these can be removed with antivirus software, although not all will fall to the antivirus software.
Knowing these will help you a great deal in identifying when your computer has a virus and knowing how to deal with them due to the nature of the virus or the behaviour of your computer and also be careful when using your phone when it comes to browsing and downloading things as your mobile phone too can be infected with malware.
