BotNet: Detection and Defense

Recent malicious attempts are intended to get financial benefits through a large number of compromised hosts, which are called software robots or simply bots. A group of such a bots, called as a botnet, is remotely controllable by a bot master and can be used for performing malicious activities like sending spam mails, stealing personal information, malware dissemination, phishing, click fraud, launching Distributed DOS attack etc. Among the various forms of malware, botnets are emerging as the most serious threat against cyber-security as they provide a distributed platform for several illegal activities. Basically botnets makes the use of command and control channels through which they can be updated and directed. Recently, botnet detection has been an interesting research topic related to cyber-threat and cyber-crime prevention.