A computer worms is a special type of computer virus that spread malicious codes. This program can spread without human will. A virus requires some human action in order to infect a computer, but a worm can spread with any human interaction. Worms can spread in multiple ways.
. Removable media
. Internet downloads
. E-mail attachment
. Downloading software from malicious sites
. Online Ads published on social media
Computer worms make use of the internet to send copies of the original codes to other nodes on internet. It can also go to extent of sending documents utilizing the email of the others users. Computers worms can run itself.