Summary
In this chapter, we delved into the fundamentals of Caesar’s simple permutation ciphers, exploring the practical applications of ROT13 and ROT47 in the development of malware. This chapter provided insightful examples, demonstrating how these basic ciphers can be employed to obfuscate malicious code.
Transitioning to a more advanced encryption technique, we learned about Base64
and explored its role in concealing suspicious strings from the scrutiny of malware analysts. Finally, we took a closer look at this book’s GitHub repository, where you can find additional examples showcasing the use of Base64
, such as encrypting payloads (such as RC4) and encoding them with Base64
.
In the next few chapters, we’ll cover more sophisticated algorithms and real-world malware examples to deepen your understanding of their application in cyberattacks.