Abstract
PE (portable executable) file has the characteristics of diversity, uncertainty of file size, complexity of file structure, and singleness of file format, which make it easy to be a carrier of information hiding, especially for that of large hiding capacity. This paper proposes an information-hiding algorithm based on PE file function migration, which utilizes disassembly engine to disassemble code section of PE file, processes function recognition, and shifts the whole codes of system or user-defined functions to the last section of PE file. Then it hides information in the original code space. The hidden information is combined with the main functions of the PE file, and the hidden information is coupled with the key codes of the program, which further enhances the concealment performance and anti-attack capability of the system.
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