Self-modifying code identification method based on hardware emulator
An identification method and simulator technology, applied in the field of self-modifying code identification based on hardware simulators, can solve the problems of static analysis method analysis capability constraints, static binary representation inconsistency, static analysis powerlessness, etc., to resist detection and improve transparency. , the effect of improving analysis efficiency
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[0026] The technical content of the present invention will be further described below in conjunction with the accompanying drawings.
[0027] refer to figure 1 , the present invention expands the translation code block of the hardware simulator system into a cache area of the translation code block, and adds a shadow memory in the hardware simulator; when the program is running, intercepts the virtual system command to obtain the data information of the analysis target. Perform dynamic analysis on executable files in the modified hardware simulator, and identify and extract codes that are dynamically released into memory and executed during program execution by monitoring information such as memory write operations and control transfer instructions during program execution. Finally, using the control jump and other information obtained during the dynamic analysis process, the extracted code is restored to the original executable file, and a complete binary file with the same...
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