كيف يمكن حقن تعليمه القفز مع العنوان [jump + address] داخل Process أخر بشكل صحيح ؟

[aijundi]

int addr = 0x0048DA03;
int jumpFarToAddr = 0x0048A512;
unsigned char hex[5];
const unsigned char command = 0xE9;
*hex = command;
int offset = jumpFarToAddr - addr - sizeof(hex);
memcpy(&hex[1], &offset, sizeof(offset));
VirtualProtectEx(hProcess, (void*)addr, 20, PAGE_READWRITE, &oldProtect);
WriteProcessMemory(hProcess, (void*)addr, (void*)hex, sizeof(hex), NULL);
VirtualProtectEx(hProcess, (void*)addr, 20, oldProtect, &oldProtect);