Summary
In this chapter, we have learned how we can add advanced functionalities to our basic malware. First, we added support for file transfer from the victim to the client, and then we added additional features, such as taking a screenshot from the victim's machine and sending it back to the hacker. Finally, we built our own keylogger. Every day, thousands of pieces of malware are written and antivirus programs try to keep up with them for detection. The advantage of writing your own malware is that it will not be easy and detect them programs to detect this malware since it is written by you and does not yet exist in antivirus databases. This gives you the opportunity for a more successful attack. Using the tools we developed in this chapter will give you an understanding of how you can build more advanced malware and how you can add more features to it as you wish. The skills gained by writing your custom malware will give you opportunities for more stealth attacks and less...