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they duplicate, hide and spoil the documents and makes the whole system to be slow.
A computer virus is a program that spreads malicious code by copying itself and infecting host computers. Although some viruses are latent, others can corrupt data or impede system performance. The term is specific, distinguished by how viruses are distributed (through downloads, email attachments, or removable media such as CDs, DVDs, or USB drives), but is often used as a catchall, much like the word “malware.” It should be noted that adware and spyware are actually not viruses as they do not have the same reproductive ability.
Many viruses attach themselves to legitimate executable files on a host computer that allow the virus to be loaded when the user opens the file. A virus generally will be activated when it is loaded into a computer’s memory, and then it may continue to spread its viral code into a number of other programs and files stored on the host computer. The computer’s programs may still continue to work normally, but also spread the virus’ code to other machines on the same network, or machines that use the same storage devices. Some viruses use polymorphic code to avoid detection by antivirus software, modifying their decryption modules so that the virus changes each time it infects a new host. Software developers that produce programs with large numbers of bugs are prime targets for viruses because they exploit these bugs in order to spread. Since viruses are built to avoid detection, antivirus software can create bait files that get the virus to infect it in order to study the virus or to discover and remove it. It is always a good idea to keep antivirus software up to date for protection against new viruses.
Technically Viruses just change the specific portion of coding of a particular program of your computer due to which it starts behaving unexpectedly. It can also encrypt your personal files or make them garbage.
Corrupt Files, Remove Exes Files from the software setups, Slow your computers performance,
Viruses bascially infects your computers based upon their nature .. it can infect your systems files .. or rename your documents files.. or self copied them on your folders .... or even delete your important data .. or not the least infect your computer bios as well
it depends on the nature of the virus. Some steal data from computers while some tend to destroy data.
A Virus is a code that is written in order to be steathly and perform certain malicious actions. It can do many things like corrupt your system file, over take your computer resources for a third party, install a keylogger, compromise your security and data, hijack your computer, lock your computer (ransomware) and there are so many other things a virus can do. It would make your system very slow and prone to crashes and/or malfunctions.
Always use a realiable anti virus as well as a malware protection program, make sure all the latest system updates are installed in order to close any loop holes or entry points.
The term VIRUS in computer language means self replicating application which can spread by copying itself by getting itself inserted to other documents, programs etc. once the VIRUS file gets executed, it could have harmful effects on the system such as slow down, deleting of files randomly etc.
Please upvote if you find my answer relevant. Would help a lot.
virus is a program that spreads malicious code by copying itself and infecting host computers
The viruses can destroy your personal data. It can leak your personal information to someone you are not familiar with or even lock your hard drive fro ransom.
Computer Virus is nothing but a small application or software which is intended to disturb the system performance or take control of the entire system or steal data or combination of these.
