Difference Between Virus vs. Worms

Main Difference

The difference between virus and worms is that the virus replicates as the user runs the infected file whereas worms do not any human action to replicate.

Virus vs. Worms

There is a malicious program that gets into your computer system; these malicious programs infect our computer system. The damaged is done to our computer system, and files get infected. In this case, our computer system can stop working, and we can lose our important data and information. There are two types of malicious programs that are virus and worms. Virus and worms enter through CD’S; Pen drives, email attachments and whenever se download anything from the unknown source our computer can get infected. A virus is a malicious software program that duplicates itself, and it can enter the system in many ways like pen drives, disk drives, email attachments and USB. Downloading is one of the most known ways of getting the virus to your system. When you download anything from an unknown source, your computer gets a virus. There are many ways virus can harm your computer system, virus harm our computer by using disk space. It also harms our computer by completely erasing our hard disk drive; it also harms our computer by modifying personal data file and text files. Worms are malicious software that are self-replicating files that are there in the memory of infected file. The important thing about the virus is that it makes itself look the same as other files this is the reason it gets difficult to find the worms. The worm is the subclass of the virus.

If we talk about the main difference, then the main difference between virus and worms is that the virus replicates as the user runs the infected file whereas worms do not any human action to replicate. The most important thing is that is can even bring the computer to a halt. There must be a host for a virus that attaches to our computer and spread throughout the system. The virus can easily link to the system, but it requires a host. If one system has a virus and an email is sent from that system to another system then the computer it gets the email will also get infected by the virus. The virus is man-made, and it harms our computer in all possible ways.

Comparison Chart

VirusWorm
The virus replicates as the user runs the infected fileWorms do not any human action to replicate
Human Action
Human action is needed in the virusHuman action is not needed in worm
Speed
The virus is slow as compared to wormThe worm is fast as compared to virus
Protection
Antivirus is protection against virusA firewall is a protection against worm

What is a Virus?

A virus is a malicious software program that duplicates itself, and it can enter the system in many ways like pen drives, disk drives, email attachments and USB. Downloading is one of the most known ways of getting the virus to your system. When you download anything from an unknown source, your computer gets a virus. There are many ways virus can harm your computer system, virus harm our computer by using disk space. It also harms our computer by completely erasing our hard disk drive; it also harms our computer by modifying personal data file and text files. The most important thing is that is can even bring the computer to a halt. There must be a host for a virus that attaches to our computer and spread throughout the system. The virus can easily link to the system, but it requires a host. If one system has a virus and an email is sent from that system to another system then the computer it gets the email will also get infected by the virus. The virus is man-made, and it harms our computer in all possible ways.

Protection

An antivirus protects against the internal attack like malicious files. Antivirus is extremely good application software for virus protection. It is very important that we should protect our system from the virus as it is hard to prevent all the virus in the world. There are three processes of an antivirus that are detection, identification and removal of virus. In detection process software is aware of the malware attack and in this process, the infected file is located. In the identification process, it recognizes which type of file is there, and in removal, it removes the infected file, and it also restores the original file. There are generations of antivirus that are 1st generation antivirus, 2nd generation antivirus and 3rd generation antivirus. 1st generation antivirus had simple scanners, and it scans the virus. 2nd generation antivirus uses a heuristic approach to detecting the virus.

What is a Worm? Worms are malicious software that are self-replicating files that are there in the memory of infected file. The important thing about the virus is that it makes itself look same as other files this is the reason it gets difficult to find the worms. The worm is the subclass of the virus.

Protection

A firewall is a standard approach that protects computer systems from external threats. There are IP packets that come from the other computer network to our computer. The work of a firewall is to filter out the IP packets. These IP packets come from another system that infects our system. A firewall is one of the most important ways to protect the local system against the virus by using a firewall you can access the internet. The role of a firewall is to make sure that all the traffic that is going out and in the system go through the system. And if firewall check that some unauthorized traffic is coming then is protected our system making us warn. There are types of firewall that are packet filters that are also known as screening router and screening filters. The job of pocket filters is to apply some rules that provide security of our system by detecting the virus and break the virus into tiny fragments. An application gateway is one other form of firewall that is also known as a proxy server. It decides the flow of the application-level traffic. Then comes the circuit gateway, it detects the virus in new connections and a remote host. There are also some limitations of the firewall that is internal attacks are not blocked, and it cannot protect against malicious attack.

Key Differences

  1. The virus replicates as the user runs the infected file whereas Worms do not any human action to replicate.
  2. Human action is needed in the virus whereas Human action is not needed in the worm.
  3. The virus is slow as compared to worm whereas Worm is fast as compared to a virus.
  4. Antivirus is protection against virus whereas Firewall is protection against worm

Comparison Video

Posted in: IT

Author:

Harlon Moss

Harlon currently works as a quality moderator and content writer for Turpy Media. He graduated from the University of California in 2010 with a degree in Computer Science. Follow him on Twitter @HarlonMoss or on Pinterest @HarlonMoss

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