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| Malicious software |
If you want to do any work on the computer, it has to be done through programming. Computers generally have two types of programs or sets of programs. One is system software and the other is application software. System software ensures proper use of computer hardware.On the other hand, application software performs a specific task. We are familiar with all these software. Such as office management software (Microsoft Office or Open Office or Libra Office), database software (Oracle or MySQL), website viewing browser (Mozilla Firefox or Google Chrome) etc. Whenever a software works, some of it resides in the computer's main memory and the rest performs other tasks with the help of the operating system.
Again, it is possible to write such programming code, which can disrupt the work of all these software, destroy the software interface of different hardware, and even destroy the performance of the entire computer. Since such programming code or programs are harmful to the computer, such software can be called malicious software or malicious software. And this malicious software is called Malware in short. Malware is a type of software that interferes with other software's intended performance. And this barrier can be either for operating system software or application software. Not only that, but some malware steals data stored on the user's computer. Sometimes the user gains access to his computer system without his knowledge. Malware can appear as programming code, scripts, active databases or other software. In other words, malware is the common name for various types of harmful software that infiltrates a computer.Malware includes computer viruses, worms, trojan horses, bootkits, keyloggers, dialers, spyware, adware etc. Experience has shown that Trojan horses or worms outnumber viruses among malicious software. Although the development and publication of malware is prohibited through cyber laws in different countries of the world, numerous malwares have already been created around the world and are constantly being developed. Users try to get rid of malware through different types of antivirus, anti-malware or firewall. Most malware is initially created experimentally or as a hobby. The Morris Worm, the world's first internet worm, was also created purely as a hobby. However, many unscrupulous programmers create malware for nefarious purposes.
