In recent years,script programs have been widely used in the field of computer science.Script programs are increasing-ly being used in the current network environment due to their powerful functionality and high execution efficiency,simpler writing and smaller file size than binary programs.Currently,the main types of script obfuscation techniques include encoding obfusca-tion,structural obfuscation,and encryption obfuscation.However,existing script obfuscation methods have obvious features and are at risk of being deobfuscated.Once a script is deobfuscated,its functionality can be easily analyzed and understood.To address this issue,an anti-semantic analysis script fusion technique is proposed.By deeply merging camouflage code with the target code that needs to be protected after dividing them into blocks,the fused code contains the code from both scripts,and the semantics and logic of different scripts are intertwined and interdependent,making semantic analysis more difficult.Understanding and ana-lyzing the fused code requires stronger semantic reasoning and contextual understanding capabilities.Experimental results on PowerShell scripts show that the control flow complexity of the fused script programs is increased by 81.51％on average,and the obfuscation strength of the code is greatly enhanced.This technique effectively blurs the script's semantics,alters control flow characteristics,and performs well in the face of semantic analysis by ChatGPT.
Code protectionObfuscationCode divisionFuseScript program
万方数据
维普
