October 2018
Beginner to intermediate
436 pages
9h 36m
English
Content preview from Mastering Reverse Engineering
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Dynamic library loading
During static analysis, we can immediately see imported functions that are available for the program's use. It is possible to only see two API functions in the import table, but have the program use dozens of APIs. In Windows, these two API functions are LoadLibrary and GetProcAddress, while in Linux, these are dlopen and dlsym.
LoadLibrary only requires the name of the library where the desired API function name is located. GetProcAddress is then responsible for retrieving the address of the API function from the library with that API name. With the library loaded, a program can call the API function using the API's address.
The following code snippet demonstrates how dynamic library loading is done. The code eventually ...
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