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Author: BuilderDemo7

process.c

@@ -0,0 +1,107 @@
+#define WIN32_LEAN_AND_MEAN
+#include <Windows.h>
+#include <luart.h>
+//using namespace std;
+
+// process.FindWindow(windowName) method
+// returns a userdata and the ID of the of the process
+LUA_METHOD(process, FindWindow)
+{
+  if (LUA_TSTRING == lua_type(L, 1)) {
+  const char *windowName = lua_tostring(L, -1); // lua string to char
+  
+  HWND win = FindWindowA(windowName,NULL); // find the window
+  DWORD pID = 0; // the window ID
+  GetWindowThreadProcessId(win, &pID); // get the window ID
+
+  lua_pushlightuserdata(L, win); // returns the userdata
+  lua_pushinteger(L, pID); // and the ID
+  return 2;
+  }
+}
+
+// process.WriteProcessMemory(processID,address,string)
+LUA_METHOD(process, WriteProcessMemory)
+{
+  if (LUA_TNUMBER == lua_type(L, 1) && LUA_TNUMBER == lua_type(L, 2) && LUA_TSTRING == lua_type(L, 3)) {
+  const int pID = lua_tonumber(L, -1);
+  const int address = lua_tonumber(L,-2);
+  const char* bytes = lua_tostring(L,-3);
+  //char memory[sizeof(bytes)];
+  
+  HANDLE pHandle = OpenProcess(PROCESS_VM_WRITE, 0, pID);
+
+  WriteProcessMemory(pHandle, (LPVOID)address, (LPCVOID)bytes, sizeof(bytes), NULL);
+  //ReadProcessMemory(pHandle, (LPVOID)address, &memory, sizeof(bytes), NULL);
+  
+  CloseHandle(pHandle);
+
+  /*
+  if (memory == bytes) {
+	  lua_pushboolean(L,1); // returns true if the bytes were written correctly
+	  return 1;
+  }
+  else {
+      lua_pushboolean(L,0); // returns false if the bytes wasn't written correctly
+      return 1;
+  }
+  */
+  return 0;
+  //lua_pushboolean(L,1);
+  //return 1; // returns nothing
+  }
+}
+
+// process.ReadProcessMemory(processID,address,size)
+// return the readed memory
+LUA_METHOD(process, ReadProcessMemory)
+{
+  if (LUA_TNUMBER == lua_type(L, 1) && LUA_TNUMBER == lua_type(L, 2) && LUA_TNUMBER == lua_type(L, 3)) {
+  const int pID = lua_tonumber(L, 1);
+  const int address = lua_tonumber(L,2);
+  const int size = lua_tonumber(L,3);
+  char memory[size];
+  
+  HANDLE pHandle = OpenProcess(PROCESS_ALL_ACCESS, 0, pID);
+
+  ReadProcessMemory(pHandle, (LPVOID)address, &memory, size, NULL);
+  
+  CloseHandle(pHandle);
+
+  lua_pushstring(L,memory);
+  return 1; // returns nothing
+  }
+  else {
+	  luaL_error(L,"Bad argument at method ReadProcessMemory");
+  }
+}
+
+
+
+//--------------- The finalizer function called when the module is garbage collected
+int process_finalize(lua_State *L)
+{
+  //--- finalizer functions returns nothing
+  return 0;
+}
+
+
+        
+static const luaL_Reg process_properties[] = {
+  {NULL, NULL}
+};
+
+static const luaL_Reg processlib[] = {
+      {"FindWindow",		process_FindWindow}, // FindWindow method 
+	  {"WriteProcessMemory", process_WriteProcessMemory}, // WriteProcessMemory method
+	  {"ReadProcessMemory", process_ReadProcessMemory}, // ReadProcessMemory
+      {NULL, NULL}
+};
+
+
+
+int __declspec(dllexport) luaopen_process(lua_State *L)
+{
+    lua_regmodulefinalize(L, process);
+    return 1;
+}

useprocess.lua

@@ -0,0 +1,11 @@
+local process = require "process"
+
+local dpldata,ID = process.FindWindow("notepad++")
+--local written = process.WriteProcessMemory(ID,10824828,"Hacked!")
+local memory = process.ReadProcessMemory(ID,10824828,121)
+
+print("Process -: "..tostring(dpldata)..", "..ID)
+print("Process -: "..memory..", size of "..#memory.." bytes")
+--print("Process written memory -; "..tostring(written))
+print("Done")
+--print(0x23E82498)