Hidden System APIs Based Code Obfuscation
Xiang Fei, Fen Lin Liu, Bin Lu, Dao Fu Gong · Applied Mechanics and Materials · 2015
For the problem that static disassembly can expose system API calls in programs, this paper proposes a kind of code obfuscation aimed at hiding system API calls from reverse analysis. The algorithm is implemented by creating a system API address table and constructing secret index variables. During execution, the program looks up the table for the correct API to call, thus keeping the semantic unchanged. Analysis and experiments show that the algorithm can effectively protect system API calls from static reverse analysis.