Thwarting Stack-Frame Analysis
Advanced disassemblers can analyze the instructions in a function to deduce the construction of its stack frame, which allows them to display the local variables and parameters relevant to the function. This information is extremely valuable to a malware analyst, as it allows for the analysis of a single function at one time, and enables the analyst to better understand its inputs, outputs, and construction.
However, analyzing a function to determine the construction of its stack frame is not an exact science. As with many other facets of disassembly, the algorithms used to determine the construction of the stack frame must make certain assumptions and guesses that are reasonable but can usually be exploited by a ...
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