Types of computer viruses what are they and how can we protect ourselves from them? List 2020

When we get the best information about Types of computer viruses existing systems that no one should doubt still pose a latent threat to our computers, we can best protect each of the devices we use.

This can be witnessed by companies and businesses of different levels, which sometimes have their own department the threat will be attacked by one malware . However, this is not the case for most users, who can also fall victim to an attack that would lead to data loss and sometimes even total loss of their computer.

In this sense, in our effort to be proactive and disseminate as much information as possible on this subject, we have decided to provide you with this content, with the certainty that it will provide you with information for the full understanding of something so delicate .

what is a computer virus and what are the risks of having one on our computer?

Talk about developed software to have a negative impact The normal functioning of the operating system of a computer device. Sometimes it can be a code hosted in a file, developed with the same malicious intent as a whole program of the same malware.

As you know, there are different types and classes of malware, but when we talk about computer viruses, we need to clarify that the term is closely related to its ability to, replicate , giving them the opportunity to spread from one computer to another just like any other. virus in humans.

Each of these malicious programs can reach your device in different ways , like emails, audio or video files, photos and any other attachments we share on social networks, plug in infected USB drives. It may remain in latency until a circumstance causes the activation of the program, Infect everything that is connected to the same computer network .

Although computer viruses sometimes cause more than certain annoyances that make them somewhat harmless, they sometimes do Have catastrophic effects and devastating on the computers of the victims. Among these latter risks, we can cite the following:

  • Theft of passwords and other data
  • Redirect it Spam to your email contacts
  • Cause strikes
  • significantly reduce computer performance
  • Damage one or more files partially or completely
  • Take control of your team

These are all things that can happen to your device if you install an infected program on it, which often happens without you knowing it. Once this happens, the malware becomes is hosted in RAM, even if you have not downloaded it completely .

List of the most important viruses known to modern computer technology

Types of computer viruses What are they and how can we protect ourselves from them? List 2020

Below you will find a list of the most important computer viruses, which have recently become real challenges for security experts in this field:


It is one of the most feared computer viruses due to its ability to disguise itself and try to penetrate users’ systems. It often acts like legitimate software . Once installed and activated on your system, cyber criminals can perform malicious actions against all kinds of data, including steal, erase or change .

This is the classic term for computer viruses, and their description is the same as in the previous chapter. We will, however, take this opportunity to point out that they are also capable of, exploit bugs to their advantage Configuration of the computer network.

Similarly, they have the ability to use various methods to spread, e.g. B. to know how Exploit security holes Operating system and some applications.

Although it is not actually a computer virus in the malicious sense of the word, this type of program is able to cause some inconvenience users by playing seemingly harmless pranks on them. But harmless or not, we can never be sure how someone will react when they see their computer suddenly go dark. shaking for no apparent reason , or to move the cursor by itself every few seconds.

Time bomb

Also known as Logic Bomb, it is a virus that has been programmed by its developer to activate at a certain time . Although it cannot spread on its own, there are some indications of its harmfulness when it is Partial or total damage Device security systems as well as a significant decrease in their performance.


This malware is more common today than many of us would like, and is exacerbated by its great ability to go unnoticed when received on computers. One of its most undesirable effects is the fact that every time we try to enter a file, it infects us even more.

Given the high frequency with which we use accessories that have been used by a USB port , either it is about USB sticks , portable hard drives, smartphones or camera cards, we run the risk of infecting our devices with this dangerous computer virus.

List of computer viruses according to their main characteristics

Types of computer viruses What are they and how can we protect ourselves from them? List 2020

In the same way, or in other words, with the same speed with which more and more innovations in the field of computers appear, cybercrime manages to create more and more sophisticated malicious developments . In order for you to know some of them, we have prepared a list for you, describing the main features and malicious capabilities of each of them:


These are the ones that can be hidden in the RAM of a computer and that can be reinstalled in each case as soon as you turn on or restart your computer . In this way, they have become a major threat to programs and files, as they always find a way to affect them parts or the whole Operating system either way .


This is a variety of malware Developed to provide detection by . to avoid un logiciel Antivirus . To achieve this, hackers have taken care to develop a program that can automatically copy, using various encryption methods. With this technique, based on a chain system, they make detection difficult reducing the efficiency of tools against malware of this particular type.


These are malicious programs that allow hackers to, Control your terminal remotely . They do this with the intention of creating a computer swarm in a "zombie state" to generate, which they use to flood de spam to any website that is the target Cyberattacks . your device will be affected in different ways, for example, when the fan starts at full speed even when the computer is not turned on, emails in the outbox that you have not sent, and decreased performance of the device among others .


Hackers use this type of virus called keylogger with the intention of recording each of the keystrokes infected devices. In this way, they can obtain sensitive information about users, especially passwords and bank account data.

Since they are designed to remain hidden, millions of users infected with this virus barely notice it. But if you see the things are not reflected on your screen while you type , Or delayed cursor key input, it is very likely that your computer has become a victim of this type of virus.

This is malicious software that directly affects the section of the hard drive that is supposed to store information about the location of files. There have been cases of Loss of complete directories contains important information for the user. And besides, it can affect important aspects for the normal functioning of the devices, which are sometimes completely out of order.


The hijacker virus was developed with malicious intent to hijack domains (learn more about other types of viruses yesterday ) works by redirecting DNS servers. What they mean by this is that whenever you want to access a certain domain, which DNS points you to an IP address that is not the one you are looking for, and therefore another page is loaded .

In this way, hackers lead you to browse sites full of unwanted advertisements that they control and in which They are an easy target for infections with other types of malware .


It is a family of computer viruses that are capable of encrypting and decrypting. They do this to avoid detection by an antivirus program. It has been found that when such a virus is about to act, it is automatically decrypted with the password it encrypted itself with. it is always the same .

latter made it possible to move forward with its removal, and the Recovery consistently Data and files of affected users.

From a link or directory

This malware owes its name to its ability, Change address where is a certain file. This means that the first harmful action inside the system is that the virus sends you back to the host that hosts the malware, instead of reaching the file you have chosen to.

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Once this happens, it is impossible to work with the original file again. But the damage is not limited to damaging only the first file, because after that it is is linked to the rest of the address books located on the hard drive, so that the extent of the damage is total .

Start-up or start-up

In this case, it is a program designed to corrupt the boot sector of the hard drive. This virus works by replacing the computer’s original boot code . To do this, the virus writes its code in place of the device’s MBR code, taking control of the device’s boot system. Damage caused by a malicious bootkit are often confused by physical problems with the startup system.

Direct action

They are called so because they cannot hibernate in the system before activation. This means that they only go into action when they enter equipment which does not have the appropriate protection. Of course, after activation they search for found files in the same directory where they fell to attack them.


These are specialized Deletion of the information contained in infected files. This makes them particularly creepy. Although the damage is sometimes partial, you achieve the opposite effect when you try to recover equipment from the damage caused. This forces the complete deletion of the file , with all that goes with it.

table of all types of computer viruses and scams

What are the most important methods of protection against all computer viruses?

Types of computer viruses What are they and how can we protect ourselves from them? List 2020

What you have read so far may cause you some concern. But for your peace of mind it must be said that there are several methods to protect your computers from all computer viruses known to date. These are methods that are available to all of us Protect devices with which we regularly connect to the Internet, whether they are computers, laptops, smartphones or tablets.

We present it here


These are computer applications designed to detect the first threats of viruses and other malicious software circulating on the network. Knowing this, you should already have an idea of their importance in maintaining security and Avoid damage to the software and hardware of all your computer devices .

Of course, the job of a good antivirus program doesn’t end there, as it is also responsible for regularly scanning computer eliminate infections caused by viruses.

File filter

It is a tool to filter files when your device is connected to a network. Once implemented, they do not require user intervention to remain active. One of the most common ways to use the tool is to use Configurator follow for that it works by providing selective filtering In certain areas, such as emails.

Software update

This is a commonly used method for clean malware from already infected computers . But this time we refer to it in terms of updating your equipment with the latest software from the technology giants. In fact, with every update, software editors make sure to check every version of bigger and better malware prevention systems .

Table of the best antivirus programs by platform or device

5 Tips to protect our devices from malware and malicious files

Now that you know some of the methods we use to protect computers from computer viruses, all you have to do is savoir What you can do yourself Cooperate in the fight against these enemies of your devices, which certainly include valuable data for you. .

With this in mind, we’ve taken the liberty of presenting you with some tips that we hope you’ll fully integrate, because the Ignorance is usually the entry point for viruses into your system:

Get an antivirus program in the Pro version

While a free antivirus program can sometimes be enough to protect you, if you use the paid versions of these programs, help your computers with a tool that displays best ways of protection .

This means that the software not only receives automatic updates, but also works independently with real-time scans, so you can be Eliminate the threat before any damage is done .

Be careful with the sites you visit

This is especially recommended if you receive attachments in your email that invite you to visit sites that are completely new to you. Keep in mind that this is one of the most popular methods that hackers use to phishing .

It is also advisable to consider all the risks to your computer when visiting adult sites. In fact, many of them are freely available, which requires the creation of many banners, Where criminals tend to hide a lot of malicious material .

Be very careful when using a USB flash drive

No doubt that the USB flash drive is the most commonly used means of storing from hackers to deploy a direct access virus that forces us to know this information very precisely when we are forced to use it. Therefore, it is better to a Pre-scan this accessory with the antivirus program before authorizing the download.

Avoid public WLAN networks

As you know, using this type of internet connection allows us to save our browser data. However, you should keep in mind that in many cases fake networks set up by some cyber criminals to Theft of information from careless individuals when they log on to their cell phones or laptops .

To avoid this, it is convenient to ask those in charge Hotels or restaurants where you should use them, whether the WLAN network belongs to you.

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