FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -An antivirus is a utility software that helps to keep the computer virus-free. Moreover, it notifies when any malicious file is detected and removes such files. In addition, it scans any new device attached to the computer and discards any virus if there.

Detailed explanation-2: -Antivirus software is an example of a security utility program. It is a program or set of programs that are designed to prevent, search for, detect and remove software viruses and other malicious software like worms, Trojans, adware, etc.

Detailed explanation-3: -Antivirus software, originally designed to detect and remove viruses from computers, can also protect against a wide variety of threats, including other types of malicious software, such as keyloggers, browser hijackers, Trojan horses, worms, rootkits, spyware, adware, botnets and ransomware.

Detailed explanation-4: -Hence, the correct answer is Mydoom.

Detailed explanation-5: -Other well-known antivirus programs include Norton antivirus and McAfee, and popular free antivirus programs include Avast and AVG. See the link below for a full list of links and comparisons.