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In the last lecture, we saw different types of denial of service or distributed denial of service attacks

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in this lecture.

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We will see what is a botnet?

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A botnet refers to a group of computers which have been infected by malware and have come under the

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control of a malicious actor or hacker.

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The term botnet is a portmanteau from the words robot network, and each infected device is called the

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bot.

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Mortensen's can be designed to accomplish illegal or malicious tasks, including sending spam, stealing

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data, ransomware, fraudulently clicking on ads are distributed in a service that its leaders attacks.

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While some malware, such as ransomware, will have a direct impact on the owner of the device, the

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botnet malware can have different levels of visibility.

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Some malware is designed to take control of the device, while other malware then silently as a background

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process while waiting silently for the instructions from the attacker or bot handler, self-propagating

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botnet recruit additional bots through a variety of different channels.

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Pathways for infection include the exploitation of website vulnerabilities, Trojan horse malware and

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cracking big authentication to gain remote access once access has been obtained.

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All of these methods for infection result in the installation of the malware on the target device,

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allowing remote control by the operator of the botnet.

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Once the device is infected, it may attempt to self-propagating the malware by recruiting other hardware

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devices in the surrounding network.

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While it's invisible to pinpoint the exact numbers of the bots in a particular botnet, estimations

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for total number of partners in a sophisticated botnet have ranged in size from a few thousand to greater

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than a million.

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While Bawdiness created reasons for using a botnet ranges from activism to state sponsored disruption,

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with many attacks being carried, simply for profit or characteristics of a botnet is the ability to

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receive updated instructions from the bot handler.

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The ability to communicate with each board in the network allows the attacker to alternate attack vectors,

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genes, a targeted IP address, terminate an attack and other customized actions.

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Botnet DNS Mavity.

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But the control structures can be broken down into Pugin categories, the client server botnet model

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and the peer to peer.

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But this is all for this lecture.

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In next lecture, we will see how to create a spectacle on a system or a targeted website.