Malware (Malicious Software) is software that aims to infiltrate the system and damage the computer for many different purposes without the knowledge of the owner because they are considered from Trojans to spyware.
What is Malware Virus in Computer?
Malware is a common term used by computer experts to describe a variety of hostile and intrusive code software or programs.
Many computer users are not yet familiar with this term, and others have never used it. However, the term computer virus is most often used to identify all kinds of malware in everyday language and often in the media.
It should be considered that the attack of the malware on this vulnerability could be directed towards an application, computer, operating system, or network.
Although they are the most common, there are many types of malware, such as viruses, worms, trojans, spyware, adware programs, and bots.
Viruses and computer worms have the ability to self-replicate in common, that is, they can contaminate the computer with their copies and sometimes mutate.
The difference between a worm and a computer virus lies in the way it spreads, a worm runs over a network, and a virus does it over the files it is attached to.
Computer viruses use various carriers. Their common goals are executable files that are part of the applications, documents containing macros, and the boot sectors of hard drives.
In the case of executable files, the virus procedure is executed when the virus infection code is executed, and the virus code is executed first. Normally, the infected application works properly.
Some viruses overwrite other programs with their own copies, infection between computers occurs when infected software or documents move from one computer to another and are executed.
When a software produces economic losses to the user of the equipment, it is also classified as criminal software or criminal, a term created to distinguish it from other types of malware.
The financial aspects of these programs are examples of fraud or misuse of the information in order to obtain account numbers and identities, official records and personal data by identifying keystrokes or mouse movements or by impersonating identity and spying by creating fake pages of banks or recruitment and employment companies.
Pseudo-social engineering is also used by e-mail, which involves obtaining the user’s confidential information through cheats, for example, where the user is asked to send private information through cheats or enter a fake Internet page to do so.
What Are Its Aims?
Some of the oldest infectious programs, including the first Internet worm and some MS-DOS viruses, were experiments and jokes to avoid serious damage to computers. In some cases, the programmer did not realize how much damage his creation could do.
Some teens who have learned about viruses have created them just to prove that they can do this, or just to see how quickly they spread.
Even in 1999, the Melissa virus, which has spread around the world and devastated thousands of computers, seems to have been prepared as a joke.
Software designed to cause data loss or damage is often related to vandalism actions. Many viruses are designed to destroy files on hard drives or corrupt the file system by writing invalid data.
Some worms are designed to damage web pages, leaving the nickname of the author or group wherever they pass. These worms can look like the equivalent of the website look.
However, due to the increase in Internet users, malware is designed to take advantage of it legally or illegally.
Since 2003, most viruses and worms have been designed to take over computers for exploitation on the black market.
These infected computers (zombie computers) are used to send mass spam via e-mail, host illegal data such as child pornography, or participate in DDoS (Denial of Service Attack) attacks where thousands of users are running a program that is constantly trying.
As a form of extortion, among other things, the server is unable to service by connecting to the victim’s website to slow down access by other users.
There are more types of malicious malware, such as spyware, intrusive adware, and pirated software that attempt to display unwanted ads or redirect ads for the benefit of the creator.
This type of malware does not spread like viruses, it is often installed using vulnerabilities or legitimate software such as P2P applications.