botnet


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botnet

(roBOT NETwork) Also called a "zombie army," a botnet is a large number of compromised computers that are used to generate spam, relay viruses or flood a network or Web server with excessive requests to cause it to fail (see denial of service attack). The computer is compromised via a Trojan that often works by opening an Internet Relay Chat (IRC) channel that waits for commands from the person in control of the botnet. There is a thriving botnet business selling lists of compromised computers to hackers and spammers. See voluntary botnet, botcloud, spambot, zombie and spam 2.0.
References in periodicals archive ?
To detect this botnet in a network, look for communications between a bot and its C2 using a Snort rule provided in the advisory.
a botnet as a means of extortion, often successfully coercing a fee that
Microsoft said its Digital Crimes Unit on Wednesday successfully took down at least 1,000 of an estimated 1,400 malicious computer networks known as the Citadel Botnets.
But the touts with the most powerful botnets have hundreds of credit cards in different names, using them in rotation to buy a few tickets at a time.
After the raid," added Boscovich, "26% of Zeus botnets were under Microsoft control.
The leader of the gang, Anton Nikolaevich Korotchenko, made a crucial mistake by registering a domain using his personal e-mail address, and leaving it in the command-and-control structure of the botnet, which Dancho Danchev was monitoring at the time.
The ThreatSTOP Botnet Defense Cloud is a cloud service based on IP Reputation that delivers a blocklist to firewalls to block botnets and advanced malware traffic to and from networks.
A botnet is a group of infected PCs (known as bots or zombies) that can be mobilised by 'bat herders' to launch any number of malicious programmes or attacks (see below).
According to Christopher Schabel, solutions architect at CDW-G, which provides technology products and support for government and education agencies, computers taken over by a botnet are known as "zombie" computers, and the hacker can then gain access to certain programs or send out spam e-mails.
Trusteer, a provider of secure browser services, today announced that it has uncovered a Zeus botnet operated from Eastern Europe which is apparently being used to commit financial fraud in the UK.
In their presentation, Correll and Corrons will provide an unprecedented look into how a collaborative effort between international law enforcement officials and leading security vendors including Panda Security, successfully dismantled the Mariposa botnet in December 2009.