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Diagram of a DDoS attack. Note how multiple computers are attacking a single computer. In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to a network.
The following other wikis use this file: Usage on af.wikipedia.org Botnet; Usage on ast.wikipedia.org Ataque de denegación de serviciu; Usage on az.wikipedia.org DoS-hücum; Botnet; Usage on bar.wikipedia.org Attacke zua Deanstblockade; Usage on bn.wikipedia.org ডিনাইয়াল অব সার্ভিস; বটনেট
A botnet is a group of Internet-connected devices, each of which runs one or more bots. Botnets can be used to perform distributed denial-of-service (DDoS) attacks, steal data, [1] send spam, and allow the attacker to access the device and its connection. The owner can control the botnet using command and control (C&C) software. [2]
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Stacheldraht (German for "barbed wire") is malware which performs a distributed denial-of-service (DDoS) attack. It was written by "Thomas Stacheldraht", a member of the Austrian hacker group TESO . It was first released in 1999.
The distributed denial-of-service (DDoS) attack was accomplished through numerous DNS lookup requests from tens of millions of IP addresses. [6] The activities are believed to have been executed through a botnet consisting of many Internet-connected devices —such as printers , IP cameras , residential gateways and baby monitors —that had ...
Nevertheless, DDoS attacks on the root zone are taken seriously as a risk by the operators of the root nameservers, and they continue to upgrade the capacity and DDoS mitigation capabilities of their infrastructure to resist any future attacks.
Zombie computers often coordinate together in a botnet controlled by the hacker, and are used for activities such as spreading e-mail spam and launching distributed denial-of-service attacks (DDoS attacks) against web servers. Most victims are unaware that their computers have become zombies.