Botnets are artificial networks created by malware, which can be controlled by the virus author remotely. Being a member of a botnet means the infected devices are kept running as usual, as the virus authors are not interested in data destruction in the device itself. Botnets designed to gather as much zombie devices to its fold, using their aggregate CPU resources as an instrument to magnify the effect of its DDoS attacks, computing for hashes and other nefarious actions. 4 Most Memorable Botnets In History: 3ve (pronounced eve) used a large pool of their trusted IP addresses to hide fraud.”]
Source: https://hackercombat.com/4-most-memorable-botnet-in-history/