I. Introduction
Malware are malicious software programs deployed by cyber attackers to compromise computer [1] systems by exploiting their security vulnerabilities. These are motivated by extraordinary financial or political rewards, malware owners are exhausting their energy to compromise as many networked computers as they can in order to achieve their malicious goals. Malware are malicious software programs deployed by cyber attackers to compromise on computers. These Malwares are being created at an alarming rate in order to gain political and financial rewards. These malwares are sent to infect the whole network and gain confidential information. The systems that are affected by these Malwares are called as bots. A malware programmer writes a program, known as bot or agent, and then installs the bots at compromised computer systems at the Internet the usage of various community virus-like techniques. All of his bots form a botnet, that is managed by using its proprietors to devote illegal responsibilities, which include launching DDoS assaults, sending junk mail emails, appearing phishing activities, and accumulating touchy statistics. There is a command and control (C&C) server(s) to talk with the bots and acquire records from bots. In order to cover himself from prison forces, the botmaster modifies the url of his command and control often, e.g., weekly. An outstanding explanation about this can be determined in [1].