1) Explain briefly about the following
a.) Computer Virus
b.) Malware
c.) Trojans
d.) Computer worms.
and drawings of those
Answers
Answer:
a)computer virus is a malicious software program loaded onto a user's computer without the user's knowledge and performs malicious actions. ... It can self-replicate, inserting itself onto other programs or files, infecting them in the process. Not all computer viruses are destructive though.
b)Malware is the collective name for a number of malicious software variants, including viruses, ransomware and spyware. Shorthand for malicious software, malware typically consists of code developed by cyberattackers, designed to cause extensive damage to data and systems or to gain unauthorized access to a network.
c)In computing, a Trojan horse, or trojan, is any malware which misleads users of its true intent. The term is derived from the Ancient Greek story of the deceptive Trojan Horse that led to the fall of the city of Troy. One form of Trojan malware has targeted Android devices specifically. Called Switcher Trojan, it infects users' devices to attack the routers on their wireless networks. The result? Cybercriminals could redirect traffic on the Wi-Fi-connected devices and use it to commit various crimes.
d)Where a worm differs from a virus is that it typically doesn't infect or manipulate files on its own. Instead, it simply clones itself over and over again and spreads via a network (say, the Internet, a local area network at home, or a company's intranet) to other systems where it continues to replicate itself.A worm virus is a computer virus that can self-replicate, mostly without human intervention. ... The ILOVEYOU, Michelangelo, and MSBlast worms are famous examples. It is best to protect against a worm virus by installing antivirus software right away, rather than waiting to get infected before installing an antivirus tool.An important distinction between computer viruses and worms is that viruses require an active host program or an already-infected and active operating system in order for viruses to run, cause damage and infect other executable files or documents, while worms are stand-alone malicious programs that can self-replicate ...The three main worm phyla are flatworms, roundworms, and segmented worms.
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