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A botnet is a logical collection of Internet -connected devices, such as computers, smartphones or Internet of things (IoT) devices whose security have been breached and control ceded to a third party. Each compromised device, known as a "bot," is created when a device is penetrated by software from a malware (malicious software) distribution.
Antivirus / Anti-malware software. Anti-malware (sometimes also called antivirus) programs block and remove some or all types of malware. For example, Microsoft Security Essentials (for Windows XP, Vista, and Windows 7) and Windows Defender (for Windows 8, 10 and 11) provide real-time protection.
Zombie (computing) In computing, a zombie is a computer connected to the Internet that has been compromised by a hacker via a computer virus, computer worm, or trojan horse program and can be used to perform malicious tasks under the remote direction of the hacker. Zombie computers often coordinate together in a botnet controlled by the hacker ...
Mirai (malware) Mirai (from the Japanese word for "future", 未来) is malware that turns networked devices running Linux into remotely controlled bots that can be used as part of a botnet in large-scale network attacks. It primarily targets online consumer devices such as IP cameras and home routers. [1] The Mirai botnet was first found in ...
Conficker, also known as Downup, Downadup and Kido, is a computer worm targeting the Microsoft Windows operating system that was first detected in November 2008. [2] It uses flaws in Windows OS software (MS08-067 / CVE-2008-4250) [3] [4] and dictionary attacks on administrator passwords to propagate while forming a botnet, and has been unusually difficult to counter because of its combined use ...
The Sybil attack in computer security is an attack wherein a reputation system is subverted by creating multiple identities. [4] A reputation system's vulnerability to a Sybil attack depends on how cheaply identities can be generated, the degree to which the reputation system accepts inputs from entities that do not have a chain of trust linking them to a trusted entity, and whether the ...
Increasingly, spammers use networks of malware-infected PCs to send their spam. Zombie networks are also known as botnets (such zombifying malware is known as a bot, short for robot). In June 2006, an estimated 80 percent of email spam was sent by zombie PCs, an increase of 30 percent from the prior year.
Emotet. Emotet is a malware strain and a cybercrime operation believed to be based in Ukraine. [1] The malware, also known as Heodo, was first detected in 2014 and deemed one of the most prevalent threats of the decade. [2][3][4] In 2021, the servers used for Emotet were disrupted through global police action in Germany and Ukraine and brought ...