Pro Decrypting VBScript Viruses

The purpose of this book is to propose a teaching approach to understand how viruses are encrypted (encoded – we use the two words interchangeably), and how to reverse-engineering the process of encrypting, it also introduced some techniques you can use in any program most importantly Scripts like in Perl, VBScript, JavaScript or web frameworks like ASP.

The first look at an encrypted virus might be not easy, but knowing what’s going inside really will give you the best vision about those viruses and how they works, in fact the VBScript viruses decrypt them selves before they can be executed, so that hackers must include the logic of decryption with their virus, and here comes the weakest point in those viruses.