Almost everyone today works withby computers. The massive use of this technology, unfortunately, has led to the emergence of pest programs that impede the operation of the PC. They are capable of destroying their file structure of disks, they can damage any information that people store on their laptops, tablets.
What is a virus on a computer?
A computer virus is a specially designeda program that can make its own copies and runs them into system resources. The user notices this when his equipment is broken, some applications are not started, the computer stops working. The world of these malicious programs has not yet been studied. New and more advanced pests are constantly appearing. Even experienced system administrators often do not know how they spread and what they are. Antivirus programs are trying to deal with them, they are also constantly improving. Each new virus is a new job for those programmers who help protect our computers.
Computer virus authors
Who writes such malicious applications, why does he / they ruin the lives of many people and entire companies? These "writers" are divided into several groups:
- Novice programmers, just mastering the wayprogramming. For some of them, making your computer virus is a reason to declare yourself, to become famous. As a rule, it is petty hooliganism. Usually schoolchildren and students write fairly simple viruses that are easily intercepted by antivirus programs.
- People involved in security, in order to check the weaknesses of protective programs.
- Public services, for example, the FSB, the army and other security forces.
- Thieves and scammers.They want to make money like this by blocking users from accessing the programs, then they ask to send a message to a certain number in order to return it. Steal passwords for free Internet access. Be careful, sometimes it is enough just to leave the page of the fraudster website, do not send SMS in such cases.
- Fraudsters of large scale.For them, the virus is a way to steal personal information about people. Steal can passport data, credit card numbers. They may be interested in any access codes to electronic money.
- The most dangerous are lone wolves, who were offended by the whole world with something. Their goal is to infect as many devices as possible to harm. It is difficult to understand their behavior.
The similarity of a computer virus with a biological
The pest by existencecan be compared with a normal biological virus. In the latent phase, it is not yet valid. The incubation period occurs when the virus begins to make copies and introduce them into the environment. After that, it goes into the active phase, multiplies and manifests itself. Like a normal virus, a pest program spreads quickly, it may even not cause inconvenience to anyone for a while, and then it begins to act. It is difficult to kill this outbreak, it is better to check your computer for viruses in time.
To protect your equipment from unwanted intrusion:
- Use only the official (licensed) antivirus program.
- Check if there are any viruses in the program before you start it.
- Bypassing sites that have a bad reputation.
Signs of infection
Consider the most characteristic signs:
- Strange messages or images on the screen.
- Arbitrary beeps that the computer makes.
- Letters are sent from you, but you do not know about it.
- Strange computer hangs.
- Occurs arbitrary launch programs.
- Frequent crashes when working with applications.
- Long loading of the operating system.
- The appearance in the computer of new files created not by you.
- Loud work of the winchester.
- Files disappear or are distorted.
As you can see, a virus program may appear in different ways.
What actions to take?
1. If you find a computer virus, do not try to search for an executable file, as this can only spread malicious code.
2. Disconnect the Internet.
3. Remove all drives that were connected, they will need to be scanned later to make sure that they are not infected.
4. Disable active applications.
5. From another PC, you need to download the latest anti-virus program.
It is important to do a full scan of your computer.then restart it. If you fail to eliminate the problem, contact the professionals for further diagnostics! Remember that the prevention of any virus is better than its treatment!
