Explain the difference between the following terms:-
1. Resident viruses and Direct Action viruses
2. Overwrite viruses and Boot viruses
3. Directory viruses and File Infectors
4. Worms and Trojans
5. Computer virus and Antivirus
Answers
Answer:
However, while a direct action virus requires the user to install or execute the infected file for the virus to be activated, a resident virus installs themselves on the computer and are therefore considered more dangerous and trickier to eradicate. of first...
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Worms spread from computer to computer, but unlike a virus, it has the capability to travel without any help from a person. ... A Trojan horse is not a virus. It is a destructive program that looks as a genuine application. Unlike viruses, Trojan horses do not replicate themselves but they can be just as destructive.of 4 th....
Virus is a computer program that has the ability of copying itself and infecting your computer. Antivirus is a computer software used in preventing, detecting and removing malware, like computer viruses, worms, spyware, Trojan horses, adware and spyware. of 5 th....
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Answer:
Explanation:
Definition of Computer virus:
A computer virus is a program that can damage our system and data and infect them without allowing us to utilize them again. A virus program replicates itself by altering other computer program and instead inserting its own coding when it is run. This malware corrupts a file or software, and if it spreads widely, it could eventually cause the device to crash.
Definition of Anti virus:
An anti-virus is a piece of software that includes a program or group of programs that can find and get rid of any hazardous or malicious malware on your computer. This anti-virus program is made to scan through a computer's files and identify any that are significantly or very slightly contaminated by a virus.
Types of virus:
Boot Sector Virus: This particular form of virus affects the Master Boot Record (MBR) of hard drives as well as the boot sector of floppy discs. All of the files necessary to launch the computer's operating system are contained in the boot sector. Either by overwriting the current software or by copying itself to another area of the disc, the virus.
Non-Resident Virus: .exe or.com files that a virus attaches to directly and enters the device when the file is being executed are referred to as direct action viruses. It keeps itself concealed if it is put in the memory.
Resident virus: A virus known as a resident virus stores itself in the computer's memory and spreads after its original software is no longer running, infecting other files and programs. Because it is concealed in the memory and is challenging to remove from the system, this virus can readily infect other files.
Multipartite Virus: A virus is referred to as a multipartite virus if it has the ability to attack both the boot sector and the executable files of a machine that has already been infected. Your system could be compromised by a multipartite malware, putting you at danger of a cyberattack.
Overwrite virus: One of the most dangerous viruses is the overwrite virus, which overwrites the program in order to entirely delete it and replace it with malicious code. The destructive code can eventually entirely replace the host's programming code.
Polymorphic virus: The sophisticated and difficult-to-detect polymorphic virus is a type of file infector that spreads via spam and compromised websites. They infect the system with a modified or mutated version of the existing program while keeping the original code.
File Infector Virus: As its name implies, this virus infects only one file initially before moving on to infect other executable files and programs. Word processors and video games are the main sources of this infection.
Space filler virus: A uncommon sort of virus called a "space filler virus" inserts more viruses into blank spaces in a file. It's called the cavity virus. Neither the size of the file nor its easy detection will be impacted.
Macro virus: A virus that infects a computer when a word processing file is accessed and is written in the same macro language as the software program. Email is primarily where these viruses are spread.
Worms and Trojans is not a type of computer virus.
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