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Proposed definitions will be considered for inclusion in the Economictimes.com Definition: A computer virus is a malicious software program loaded onto a user’s computer without the user’s knowledge and performs malicious actions. Description: The term 'computer virus' was first formally defined by Fred Cohen in 1983. Computer viruses never occur naturally. They are always induced by people. Once created and released, however, their diffusion is not directly under human control. After entering a computer, a virus attaches itself to another program in such a way that execution of the host program triggers the action of the virus simultaneously. It can self-replicate, inserting itself onto other programs or files, infecting them in the process. Not all computer viruses are destructive though. However, most of them perform actions that are malicious in nature, such as destroying data. Some viruses wreak havoc as soon as their code is executed, while others lie dormant until a particular event (as programmed) gets initiated, that causes their code to run in the computer. Viruses spread when the software or documents they get attached to are transferred from one computer to another using a network, a disk, file sharing methods, or through infected e-mail attachments. Some viruses use different stealth strategies to avoid their detection from anti-virus software. For example, some can infect files without increasing their sizes, while others try to evade detection by killing the tasks associated with the antivirus software before they can be detected. Some old viruses make sure that the "last modified" date of a host file stays the same when they infect the file.
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What is a computer program that can copy itself and infect a computer?Share to Facebook Share to Twitter. Definition(s): A computer program that can copy itself and infect a computer without permission or knowledge of the user. A virus might corrupt or delete data on a computer, use e-mail programs to spread itself to other computers, or even erase everything on a hard disk.
What is the name of the software that can infect a computer without user allowing it to do Mcq?Malware is an unwanted software that an unauthorized person wants to run on your computer. These are known as security threats. It includes computer viruses, worms, trojan horses, rootkits, spyware, adware etc.
What type of malware can copy itself and spread itself without human interaction?Worms. Computer worms are a type of standalone malware program that can duplicate itself in order to jump to other computers. It uses the computer network to spread itself. Unlike a computer virus, it does not need to attach itself to an existing program.
Which computer program can copy and run itself without attaching itself to a legitimate program?A worm is a malicious software which similar to that of a computer virus is a self-replicating program, however, in the case of worms, it automatically executes itself. Worms spread over a network and are capable of launching a cumbersome and destructive attack within a short period.
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Which of the following is the program which can infect the computer and copy itself without user knowledge?
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