A botnet is a logical collection of Internet-connected devices, such as computers, smartphones or Internet of things (IoT) devices whose securityhave been breached and control ceded to a third party. Each compromised

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Botnet architecture has evolved over time in an effort to evade detection and disruption. Traditionally, bot programs are constructed as

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A botnet's originator (known as a "bot herder" or "bot master") controls the botnet remotely. This is known as the command-and-control (C&C). The

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Botnet command and control (C&C) protocols have been implemented in a number of ways, from traditional IRC approaches to more sophisticated versions.
Telnet
Telnetbotnets

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• Most botnets currently feature distributed denial-of-service attacksin which multiple systems submit as many requests as possible to a single

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The botnet controller community features a constant and continuous struggle over who has the most bots, the highest overall bandwidth, and the most

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Traditional
This example illustrates how a botnet is created and used for malicious gain.
1. A hacker purchases or builds a Trojan and/or exploit kit and uses it to start infecting users' computers, whose payload is a malicious

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