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| 1. |
Difference between worm and virus |
| Answer» \tComputer VirusComputer WormA computer virus is a program, wherein a code copies itself and replicates itself to other programs/files on a device and may result in corrupting or damaging the deviceA computer worm is an independent malicious program, which when enters a system can start causing harm/damage to the deviceAn initiation is required by the host, i.e., a virus spreads only when an infected program is executed in a deviceA worm only needs to enter the device, then it can automatically affect the other files and programs. No execution is neededFew different types of computer viruses include: Boot sector virusDirect Action virusPolymorphic virusMacro virusSpacefiller virusOverwrite virusFile Infector virusFew of the different types of computer worms are as follows: Internet wormsInstant messaging wormsEmail wormsFile sharing wormsInternet relay chat (IRC) wormsA virus may spread when a file is open and then the same malicious code is copied and spread around whenever other files are opened in the host computerA worm only requires a medium to enter the device. This may be through the internet, email, online messaging applications, etc.\xa0Time taken by a virus to spread in the system is lesser in comparison to a wormA worm can quickly spread through a deviceA virus corrupts the files or deletes them automaticallyOn the other hand, a worm also affects the bandwidth and network connections of the deviceExamples of computer virus include Creeper, Blaster, Slammer, etc.Examples of computer worm include Morris worm, storm worm, etc.\t | |