With one of my many honeypots actived around the world wide web, I discovered an interesting script written with the famous Perl programming language. This Perl script is a malware used to remotely control a machine, opening what is technically called backdoor. If this malicious program runs on multiple machines, there is a possibility that the attacker may have created a botnet. At first, a botnet is a network controlled by a bots master and composed of devices infected with specialized malware, called bots or zombies (“Computer zombie”). Devices connected to the Internet within which there are vulnerabilities in their infrastructure can sometimes become part of the botnet, even if they do not have the malware installed. Through the backdoor, the botmaster can control the system via remote access. Thus infected computers can launch attacks, named, Distributed Denial of Service against other systems or perform other illicit operations. How it works is relativ...