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This article mainly introduces the harm of malicious software in the computer network, which has a certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article. Let's take a look at it.

Malware includes all the software that will cause harm, including: 1, stealing passwords, forcing pop-up ads; 2, spreading yourself to all people in the address book through the e-mail address book of infected users; 3, downloading malicious code to the computer; 4, planting all kinds of advertisements in the system at will.

Malware is malicious program code, or software secretly installed in the system, which can affect the security, integration or usability of data or programs on the network. Malware may cause serious damage or disconnection to the network, which requires a lot of efforts to restore the security of the system and the trust of users.

"malware" includes all software that can cause harm.

How much do you know about the harm of malware

1. Virus

A virus is malware that replicates itself and infects other files, just like biological viruses, which infect cells and then use them to multiply.

Viruses can do a lot of things. For example, it can hide itself, steal passwords, force pop-up ads, and restart the computer. These alone are not enough to call it a virus. Viruses are called viruses because of their ability to reproduce. When a virus runs in a computer, it infects programs in the machine. If the infected program is run on another computer, the machine will also be infected. For example, a virus may infect a U disk, and when the U disk is plugged into a computer and runs the infected program, the virus will be transmitted to the computer, and then it will infect more program files, so the infection will go on indefinitely.

2. Worm virus

Worms are very similar to viruses, except that they spread differently. Worms spread through the network, while viruses spread by infecting files or by artificially moving virus files. Although worms are rare now that there is a default firewall in Windows systems, there are other ways they can spread. For example, the worm can spread itself to all people in the address book through the email address book of the infected user.

Like a virus, once a worm successfully infects a computer, it can achieve many purposes. Its main purpose is to continue to replicate and spread.

3. Trojan Horse

A Trojan horse can disguise itself as a normal file. When someone downloads it and tries to open it, the Trojan runs in the background and opens an entrance that allows third parties to access it. Trojans can do more tasks, such as monitoring the computer and downloading malicious code to the computer. It can also download a large number of malicious software to the computer.

4. Spyware

Spyware is also malware that monitors users without their knowledge. Different spyware collects different data. Malware can be thought of as spyware. For example, a Trojan horse is malicious spyware that can monitor a user's keyboard to steal financial data.

5. Advertising software

Mandatory ads are often stored in spyware. Any type of software may contain ads and pop up prompts from time to time. Software that contains advertisements in a program is generally not called malware. Malicious adware always inserts all kinds of advertisements into the system at will. They can generate pop-up ads so that users can't do anything else. They can even put ads on the web page that users are browsing.

6. Keylogger

The malware keylogger also runs in the background, and it can record all keyboard actions. These operations include user name, password, credit card number and other sensitive data. After that, all kinds of data will be sent to the hacker's server for analysis to find useful data.

7. Botnet

Botnet is a relatively large network, and the computers in the network are under the control of network developers. Every computer is infected with a zombie program by a special kind of malware.

Once the zombie software infects the computer, it establishes a channel between the computer and the control server and waits for the controller to issue instructions. For example, it can carry out DDoS attacks. If the controller wants to attack a website, then all zombie computers will attack that site immediately, and these tens of thousands of attacks can paralyze the server immediately.

Botnet makers sell access to the network to other manufacturers, and hackers can use it to make a profit.

8. Root access tool

The Root access tool is a kind of malware designed to obtain the highest privileges of the system and to evade the inspection of security programs and users. For example, the tool can be loaded into the depths of the system before the system is run, and the function of the system can be modified to avoid detection of security programs. And it can also be hidden in the task manager.

The core of the root access tool is that once it is running, it can be hidden.

9. Blackmail software

Blackmail software is a malicious software that hijacks computers or files. After resources are hijacked, users are generally required to pay a certain ransom. Some blackmail software makes the computer unusable and then pops up asking for money before it can continue to be used. But this kind of software is easy to find by antivirus software.

Thank you for reading this article carefully. I hope the article "what are the dangers of malware in computer network" shared by the editor will be helpful to everyone? at the same time, I also hope that you will support and pay attention to the industry information channel. more related knowledge is waiting for you to learn!

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