使用WriteProcessMemory函数向指定进程写入数据

成功写入数据到进程 AA = 170 读取了1字节

源码

#include

#include

int main(int argc, PCHAR argv[]){

HANDLE handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, 23548);

if (handle == NULL){

printf("打开进程失败\n");

}

printf("打开进程成功,句柄为:%p\n", handle);

LPSTR buffer = 0;

BYTE wb[5] = { 0xaa, 0xaa, 0xaa, 0xa1,0x00 };

BYTE cd[4] = { 0 };

DWORD i = 0;

DWORD newprot, oldprot;

VirtualProtectEx(handle, (LPVOID)0x0040008, 4, PAGE_EXECUTE_READWRITE, &oldprot);

if (!ReadProcessMemory(handle, (LPVOID)0x0040008, &buffer, 4, &i)){

printf("读取进程内存失败 %d %d\n", GetLastError(), i);

}

printf("读取到的进程内存信息为: %p 读取数量 %d\n", buffer, i);

if (!WriteProcessMemory(handle, (LPVOID)0x0040008, wb, 4, &i)){

printf("写入进程内存失败 %d %d\n", GetLastError(), i);

}

printf("写入到的进程内存信息为: %d 写入数量 %d\n", wb[0], i);

VirtualProtectEx(handle, (LPVOID)0x0040008, 4, oldprot, &newprot);

CloseHandle(handle);

getchar();

return 0;

}