What are the 3 types of viruses?

These days, you as a user or the owner of a website, are always dealing with the problem of preventing viruses from entering your computer system, computer viruses are very similar to biological viruses, and if they find systems with low security, they will multiply rapidly and infect the whole system, as we mentioned, systems which have low security are the main target of viruses, so you have to increase the security of your computer systems as much as possible in order to protect them from possible threats, you also need to know viruses better, so that you can stand up to them more, in this article we are going to introduce you three different types of viruses in order to make you aware of such threats.

What is a computer virus?
In fact, computer virus is a type of programming that if it can bypass the host's security system, it would eventually infect the whole system by inserting its own code and fast replication, profiteers can access various information from the host system by importing the virus into the host’s system, and they also make many changes to the systems of different users in order to achieve their desires.

There are three types of computer viruses:

1- Macro viruses:
A macro virus can attack various applications and eventually cause a sequence of actions to start automatically when the infected program is opened, the virus is written in macro language and can infect different types of systems due to having different operating systems, as we mentioned, this type of virus causes malicious programs to run once the infected documents are opened, in fact they do this process by entering malicious code into macros that are associated with documents, spreadsheets, and other data files, these types of viruses can eventually send infected emails from the infected system, so that lots of different users’ systems will be infected once they open those emails, and viruses continue to multiply just like biological viruses and infect the whole system, as a result, they are able to infect more and more users’ systems day by day.

Also, when this macro is executed in the system, usually all the documents that are in the user's computer are infected and can cause disorder in the existing documents, the first macro virus was spread in 1995 through Microsoft Word and has finally been able to continue to spread and infect various systems to date, there are different types of macro viruses including, the concept virus and Melissa virus, which we are going to describe in the following.

The concept virus:
The first macro virus to be introduced was the concept virus, which targeted Microsoft Word.

Melissa virus:
This virus spread in March 1999 through infected emails and was able to infect many systems in a very short while, so these abilities caused a lot of worries and turned this virus into a huge danger for every user, this type of virus was distributed as an email attachment, and as we mentioned, it was able to spread quickly among different users’ systems, these emails were distributed to the users in such a way that the users thought they had requested the submitted file and opened it quickly, by doing so, their systems would be infected, this type of virus has caused a lot of economic losses, especially to Microsoft.

2- Boot record infectors:
These types of viruses can give hackers absolute control over a system by infecting different users' systems, Boot record infectors, attack programs stored on boot floppies or hard disks, by infecting them and causing the infected code to run automatically every time a user boots the computer, these viruses have different types depending on their purpose.

3- File infectors:
File infector virus may be transmitted over networks, disks, or the Internet, and eventually every time a user runs a dangerous program, these viruses are being activated, the thing to note about these types of viruses is that they can remain in inactive memory until there is a signal to infect other program files, which causes the virus to become a malicious virus.

While this virus is infecting a file, it can also spread to other programs and even other networks that use infected files and programs, computer viruses can eventually cause a lot of damage to different users’ systems as well as their information, documents, etc., which is why it is so necessary to know the ways to deal with them and prevent them from entering your systems by mastering them.

Ways to deal with viruses:
- Use secure browsers:
There are various measures that can be taken to combat the entry of various viruses, one of the most important of which is the use of a secure browser, today there are many secure browsers, such as Google Chrome, Mozilla Firefox, Safari, etc., all of which can provide a lot of security for the users , the reason why there is so much emphasis on the use of secure browsers today, is that users do almost all their tasks through the Internet, so they may enter a lot of personal information, such as their bank card information, as a result, if you use an insecure browser in order to achieve your goals, you won’t be successful.

- Block all pop-up windows:
Pop-up ads are very annoying for different users, and they can also be more annoying by entering different viruses to the systems, these ads which actually run without the user's request, cause the user to get nervous, so they won’t get a positive user experience by using a website , as a result, users have a great desire to block them which is possible through the settings in the browser and various software programs that can be easily downloaded by the users in order to get rid of pop-up ads and possible threats.

- Use powerful antivirus:
Despite the increase in security of various operating systems , such as Windows 10, it is still necessary to use antivirus software program which provides good facilities, there are many antivirus software programs on the market, some of which are paid, but some are free, and different users have to choose one of which according to their purpose, the important point that should be considered is that you should never think if you use two several antivirus software programs, you will achieve more security and can protect your system more against different viruses, because not only won’t it increase the security of your system, but also slows down the speed of it, so you need to do a thorough research about the features of different types of antivirus software programs, and try to choose the best one, another point that should be taken into consideration is that you need to update it regularly in order to maintain the security of your system.

- Scan devices and accessories connected to the computer:
Different viruses may be connected to various systems via disks, flash drives, etc., so it is necessary to scan an external agent as soon as it connects to the system, and if there is a virus, it is going to be reported as soon as possible, so that you can take necessary security measures to deal with its virus, one of the reasons why antivirus software programs are so important is that they can scan all viruses quickly and keep the system safe.

- Fishing emails:
One way to transmit different viruses is through phishing emails, which are created by different hackers and sent to various users, it should be noted that phishing emails have features that can be quickly detected by mastering them, one of the features of these emails is the attractiveness of the title, having topics to arouse the user's feelings, etc., all of these factors make the users click on them quickly, and their systems will be infected, as a result, if you see these types of emails, you should only delete them, so that they cannot infect your computer systems.

Last word:
In general, viruses have a wide world and to deal with them, it is necessary to increase our awareness in this field, which is why in this article we have mentioned different types of viruses to make you aware of any possible threats , so you can increase the security of your systems by knowing the most common security threat, and surf the Internet safely, but never forget that having a strong antivirus is a must to stand up to different viruses.