逆向实战 | 植物大战僵尸shellcode种植辣椒

参考视频：https://www.bilibili.com/video/BV1944y1y74f

先丢分析：

再丢代码：

int full_jalapeno(){
	// 辣椒清场
	/*
		火爆辣椒的id是0x14
		樱桃炸弹的id是0x02

  找对象基地址
  
	1E0A6A30
	=[edi(00AA9E08)+00000768]
	=[[6A9EC0]+00000768]
	=[[popcapgame1.exe+2A9EC0]+00000768]
	
	  种植函数的偏移
=popcapgame1.exe+D120

  */
	DWORD pid = GetPid("popcapgame1.exe");      // 获取进程pid
	//获取进程句柄
	HANDLE hProcess;
	hProcess = OpenProcess(PROCESS_ALL_ACCESS,FALSE,pid);
	printf("%x \n", hProcess);
	if (hProcess == NULL)
	{
		printf("fail to open process \n");
		CloseHandle(hProcess);
		return -1;
	}

	// 获取模块地址
	DWORD modaddr = NULL;
	MODULEENTRY32 modentry;
	HANDLE hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, pid);
	modentry.dwSize = sizeof(MODULEENTRY32); // 初始化一下
	Module32First(hSnapshot, &modentry);
	do{
		if (!strcmp(modentry.szModule, "popcapgame1.exe")){
			modaddr = (DWORD)(modentry.hModule);
			printf("Module Found, addr: %x \n", modaddr);
			CloseHandle(hSnapshot);
			break;
		}
		//遍历查找模块名
    }while (Module32Next(hSnapshot, &modentry));
	// ---------创建并调用shellcode
	BYTE shellcode[1024] = {
		0x60, 0xE8, 0x00, 0x00, 0x00, 0x00, 0x5D, 0x8D, 0x6D, 0x1D, 0x68, 0xFF, 0xFF, 0xFF, 0xFF, 0x6A,
			0x14, 0x8B, 0x45, 0x00, 0x8B, 0x4D, 0x04, 0x51, 0x8B, 0x55, 0x08, 0x52, 0x8B, 0x4D, 0x0C, 0xFF,
			0xD1, 0x61, 0xC3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00
	};
	// 数据
	DWORD x = 0;
	DWORD y = 0;
	DWORD pObj = modaddr;          // 对象地址获取
	ReadProcessMemory(hProcess, (LPCVOID)(0x6A9EC0), &pObj, 4, NULL);
	ReadProcessMemory(hProcess, (LPCVOID)(pObj + 0x768), &pObj, 4, NULL); 

	DWORD pFunc = modaddr + 0xD120;
	// 修改数据
	*(DWORD*)(shellcode + 0x23) = y;
	*(DWORD*)(shellcode + 0x27) = x;
	*(DWORD*)(shellcode + 0x2B) = pObj;
	*(DWORD*)(shellcode + 0x2F) = pFunc;


	// 分配一块空间
	LPVOID calladdr = VirtualAllocEx(hProcess, NULL, 1024, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
	// 写shellcode
	WriteProcessMemory(hProcess, calladdr, shellcode, 1024, NULL);

	while (1){
		// 修改shellcode数据
		WriteProcessMemory(hProcess, ((BYTE*)calladdr+0x23), &y, 4, NULL);
		//创建远程线程
		HANDLE hRemote = CreateRemoteThread(
			hProcess, NULL, NULL, (LPTHREAD_START_ROUTINE)calladdr,NULL,NULL,NULL
			);
		WaitForSingleObject(hRemote, INFINITE);
		CloseHandle(hRemote);
		y++;
		if (y==5){
			break;
		}
		Sleep(100);
	}
	CloseHandle(hProcess);
	return 1;
}