How a Virus Can Appear on a Computer

A viral infection spreads much faster in a densely populated society. The same thing can be said about computing.

Viruses have the same long history as computer technology itself, however, the more popular computers become, the more menacing the scale of virus attacks. Until recently, computers were owned primarily by experienced professionals who knew how to protect their computer from malware. Now, PC has become a home appliance, playing the role of a home theater, music center, game console and just a device for surfing the Internet.

What is surprising in the fact that older people, housewives and children, can not fully protect your computer from virus attacks?

Thus, cybercriminals infect computers not only to steal the personal data of the target machine, but also to further spread the malicious code. As a result, through remote access, an attacker can commit a crime using the computer of an unsuspecting user. With the help of this material we will learn how to remove viruses from your computer yourself.

What viruses can infect a computer?

As mentioned above, viruses have a long history. At the moment, it is difficult to list all existing malware, however, they can be divided into several varieties.

In most cases, viruses steal the user’s personal data, which are then used to steal money. In addition, quite often viruses encrypt user data, followed by extortion of money. However, there are many viruses that simply destroy system files and media content due to harmfulness. It is difficult to say why such viruses are created, perhaps once they served some purpose, but now, they simply “wander” in the Internet space.

In addition to financial gain, quite often, cybercriminals inject a virus into users’ computers that subsequently attacks other machines or network resources, and the owner of an infected PC, without suspecting it, becomes an accomplice in the attack. This is called a DDoS attack when many computers are simultaneously trying to load a particular resource.

Recently, cryptocurrencies have gained great popularity. Attackers, as usual, did not bypass this opportunity and began by all possible ways to introduce cryptocurrency generating programs into users’ computers using the computing power of the infected machine.

Recently, this type of fraud has come to the point that they began to use computer resources even when a user visits a site on the Internet.

How to determine if a computer is infected with a virus or not

Among all viruses, a personal computer does not show signs of infection only if it implements a program that steals personal data. Other types of viruses cause serious damage to the system. A person may find that his documents have stopped opening, signs appear on the screen with a proposal to transfer funds to decrypt the files, and sometimes, the computer simply starts to slow down.

With a significant decrease in performance, any user, first of all, will check the technical specifications and find out which process consumes computer resources. If at the time of loading, the machine does not convert the or other resource-intensive tasks, and in the processes you can see unknown applications, then you need to suspect the virus. You can see the running processes and the resources consumed by them in the Windows task manager.

How a Virus Can Appear on a Computer

To start the task manager, right-click on the taskbar and select “Task Manager”.

To be sure of this, a person can simply enter the name of the process in the search system and make sure that this is not a system process.

Self Virus Removal

To get rid of all viruses for sure, a person can simply format (clean) the computer’s hard drive, but at the same time, he will lose all the information stored on it. Formatting only the system partition will not do anything, because after reinstalling the system, viruses will safely get over from one local drive to another.

Thus, in addition to full formatting, a person will not be able to remove malicious applications without third-party software.

If you suspect an infection, first of all, the person must install anti-virus software, moreover, more or less reliable. At the moment, NOD32 and Kaspersky are considered one of the most high-quality anti-virus programs.

However, all such programs work on a similar principle and you can give an example on the NOD32 program. This antivirus is paid, but you can try it for free within 30 days after installation.

During installation, you must switch to a custom installation, and then select the parameters of interest to the user. In the virus detection section, you must specify “Enable Unwanted Software Detection”, And in the next paragraph, select the option”Interactive mode”, Due to which, NOD32 will detect suspicious processes and files, but the decision to delete or move to quarantine will be offered to the user.

After installing and starting the application, in the program window, you should find the section “Scanning”And select the mode”Scan all local drives”.

Upon completion of the scan, the antivirus will offer the user to decide what to do with the detected threats, delete or quarantine them.

If the threats include useful data, for example, a text file with passwords, then of course it can be quarantined for further information extraction.

We can say that the user’s computer is like a house, it is necessary to monitor its security, close the door to the lock and not let suspicious persons inside.

According to unwritten rules, it is necessary to install antivirus software immediately after installing the operating system. The antivirus program will work in real time, checking every file that the user and the system access.

If for some reason you do not want to pay money for antivirus software, then there are free antiviruses, the most famous and well-established, are Avast and Kaspersky Free.