![]() PIMAGE_EXPORT_DIRECTORY edt // export directory table (EDT)ĭWORD rva // relative virtual address of EDT PIMAGE_FILE_HEADER cfh // COFF file header PIMAGE_EXPORT_DIRECTORY GetExportDirectoryTable(HMODULE module) Printf("Check API Name %s on %d\n", (LPCSTR)(npt base), mid) ![]() ![]() Typedef UINT(CALLBACK* MessageBoxA_RioAsmara)(Ĭhar base46_map = Ĭhar* plain = (char*)malloc(strlen(cipher) * 3 / 4) Ĭmp = strcmp((LPCSTR)(npt base), proc) Thus, one cannot reliably import Windows API functions by their ordinals. For most Windows API functions, only the names are preserved across different Windows releases the ordinals are subject to change. It is common for internal functions to be exported by ordinal only. The ordinal represents the position of the function’s address pointer in the DLL Export Address table. Likewise, functions can be imported from a DLL either by ordinal or by name. it would give ideas for the malware analyst on how the malware would behave.Įach function exported by a DLL is identified by a numeric ordinal and optionally a name. If you specify the calls from your code, then the compiler will include the MessageBoxA or all the API’s needed in the import table in your PE. ![]() Usually, When you want to interact with the windows operating system, then you need to call windows API either from user32.dll or kernel32.dll from your code such as MessageBoxA, GetCurrentProcessId, memcpy or any other API. Today, I would like to share abit of my research regarding how you hide your windows API calls from static analysis.
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