So before you download anything from internet be sure about it first. They can be hidden in a free/trial softwares or other files that you download. Viruses also enters through downloads on the Internet. Viruses can enter to your computer as an attachment of images, greeting, or audio / video files. A computer Virus is more dangerous than a computer worm as it makes changes or deletes your files while worms only replicates itself with out making changes to your files/data. A virus might corrupt or delete data on your computer. Virus is a program written to enter to your computer and damage/alter your files/data.

Worms spread by exploiting vulnerabilities in operating systemsĭue to its replication nature it takes a lot of space in the hard drive and consumes more cpu uses which in turn makes the pc too slow also consumes more network bandwidth. Unlike a virus, it does not need to attach itself to an existing program. It doesn’t harm any data/file on the computer. The only purpose of the worm is to reproduce itself again and again. Worms are malicious programs that make copies of themselves again and again on the local drive, network shares, etc. So wherever a malware term is used it means a program which is designed to damage your computer it may be a virus, worm or Trojan. Malware is designed to cause damage to a stand alone computer or a networked pc. 'Malware' is short for malicious software and used as a single term to refer to virus, spyware, worm etc.

How to remove a mbr virus