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प्रश्न
What is a computer virus? Name some computer viruses that were popular in recent years.
उत्तर
A virus is a piece of software code created to perform malicious activities and hamper resources of a computer system like CPU time, memory, personal files, or sensitive information.
Mimicking the behaviour of a biological virus, the computer virus spreads on contact with another system, i.e. a computer virus infects other computer systems that it comes into contact with by copying or inserting its code into the computer programs or software (executable files). A virus remains dormant on a system and is activated as soon as the infected file is opened (executed) by a user.
Viruses behave differently, depending upon the reason or motivation behind their creation. Some of the most common intentions or motives behind viruses include stealing passwords or data, corrupting files, spamming the user’s email contacts, and even taking control of the user’s machine. Some well-known viruses include CryptoLocker, ILOVEYOU, MyDoom, Sasser and Netsky, Slammer, Stuxnet, etc.
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संबंधित प्रश्न
Which one of the following is also referred to as malicious software?
Code Red is a type of ______.
A ______ is a small malicious program that runs hidden on the infected system.
Which of the following would most likely NOT be a symptom of a virus?
What does DDoS Stand for?
Amit used a pen drive to copy files from his friend's laptop to his office computer. Soon his office computer started abnormal functioning. Sometimes it would restart by itself and sometimes it would stop functioning totally. Which of the following options, would have caused the malfunctioning of the computer. Justify the reason for your chosen option.
William Jones has got a file that is replicating itself in order to spread to other computers using a computer network on its own, relying on security failures on the target computer to access it. It is consuming a lot of network bandwidth also. Which of the following type category of infection will it be considered?
Identify the malware which does not replicate or clone through an infection.
A Computer Virus is a ______
Why is a computer considered to be safe if it is not connected to a network or the Internet?
How is a computer worm different from a virus?
How is Ransomware used to extract money from users?
How did a Trojan get its name?
How does adware generate revenue for its creator?
How is a Virtual Keyboard safer than an On-Screen Keyboard?
List and briefly explain different modes of malware distribution.
List some preventive measures against malware infection.
