Legal and Illegal Botnets

Botnet term is used when several IRC bots have been connected and may possibly set channel modes on other bots while keeping IRC channels away from unwanted users. These bots used for Legal purposes. one type of these botnets are eggdrop.

Botnets consisted of computers whose security defenses has been breached and controlled by third party. This type of compromised device known as a "bot" which is created when a computer is breached by some malware. The controller of the botnet is able to direct the activities of these infected computers through communication channels.