Code Obfuscation by Using Floating Points and Conditional Statements

摘要

Code obfuscation is one of the trickiest methods for software code transformation, and proves to be one of the major sources for malwares as well as legitimate software. There are many techniques for code obfuscation, which can be used to manipulate the source code, so that it becomes hard to analyze for the adversary. In this paper, the conditional code obfuscation using floating point arithmetic and control statements is discussed, where the ‘if condition’ has been used several times in place of ‘if-else if’ conditions. The objective of the proposed conditional code obfuscation method is to keep the code simple, without major modification, so that the adversary will be unable to identify the difference between the original code and the obfuscated code, but the code will be highly obfuscated.