![]() ![]() Though simple and easy to deploy, the centralized C&C mechanism of such botnets has made them prone to being detected and disabled. The first generation of botnets typically employ IRC (Internet Relay Chat) channels as their command and control (C&C) centers. As detection and mitigation techniques against botnets have been stepped up in recent years, attackers are also constantly improving their strategies to more ยป operate these botnets. ![]() With an army of bots at the scale of tens of thousands of hosts or even as large as 1.5 million PCs, the computational power of botnets can be leveraged to launch large-scale DDoS (Distributed Denial of Service) attacks, sending spamming emails, stealing identities and financial information, etc. Botnets, which are networks of compromised machines that are controlled by one or a group of attackers, have emerged as one of the most serious security threats on the Internet. ![]()
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