内容来源于:易道云信息技术研究院VIP课
上一个内容:游戏菜单文字资源读取的逆向分析-CSDN博客
码云地址(master分支):https://gitee.com/dye_your_fingers/sro_-ex.git
码云版本号:55358fb135a0c821d8e80a931f33640494b54b9d
代码下载地址,在 SRO_EX 目录下,文件名为:SRO_Ex-文字资源读取类的C++还原.zip
链接:https://pan.baidu.com/s/1W-JpUcGOWbSJmMdmtMzYZg
提取码:q9n5
--来自百度网盘超级会员V4的分享
HOOK引擎,文件名为:黑兔sdk.zip
链接:https://pan.baidu.com/s/1IB-Zs6hi3yU8LC2f-8hIEw
提取码:78h8
--来自百度网盘超级会员V4的分享
以 游戏菜单文字资源读取的逆向分析-CSDN博客 它的代码为基础进行修改
效果图:
GameEx.cpp文件的修改,修改了 ExitGame函数,上方效果图里的代码只能通过重新登录才能修改好按钮的名字,通过ExitGame函数,可以让游戏在按钮初始化之前把字符串给修改了
#include "pch.h"
#include "GameEx.h"
#include "htdHook2.h"
#include "GameProtect.h"
#include "extern_all.h"extern int client;
extern GameProtect* _protect;
extern unsigned _stdcall GetFunctionAddress(int index);
htd::hook::htdHook2 hooker;#include <windows.h>
#include<stdio.h>
#include<TlHelp32.h>/**声明要拦截的函数地址
*/
auto h = GetModuleHandle(NULL);
DWORD address = (DWORD)h;
DWORD addRExit = address + 0x88C77E;size_t 被拦截修改的函数的地址 = (size_t)addRExit;LONG NTAPI 异常回调(struct _EXCEPTION_POINTERS* Excep)
{printf("异常回调1\n");/**判断出异常的地方是否为 我们修改的地方*/if ((size_t)Excep->ExceptionRecord->ExceptionAddress == 被拦截修改的函数的地址) {//const char* szStr = "nei Rong Bei Xiu Gai";//*(DWORD*)(Excep->ContextRecord->Esp + 0x8) = (DWORD)szStr;//szStr = "biao Ti Bei Xiu Gai";//*(DWORD*)(Excep->ContextRecord->Esp + 0xC) = (DWORD)szStr;AfxMessageBox(L"游戏退出!");DWORD* _esp = (DWORD*)Excep->ContextRecord->Esp;DWORD _val = _esp[1];if (_val == 0x1035D0C) {AfxMessageBox(L"游戏退出2!");auto hMuls = OpenSemaphore(SEMAPHORE_ALL_ACCESS, FALSE, L"system_seamp");if (hMuls) ReleaseSemaphore(hMuls, 1, 0);ExitProcess(0);}Excep->ContextRecord->Eip = *(DWORD *) Excep->ContextRecord->Esp;Excep->ContextRecord->Esp += 8;return EXCEPTION_CONTINUE_EXECUTION;}else {/**防止被其它地方修改了函数地址*/Excep->ContextRecord->Dr0 = 被拦截修改的函数的地址;Excep->ContextRecord->Dr7 = 0x405;return EXCEPTION_CONTINUE_SEARCH;}}VOID 设置线程的dr寄存器(HANDLE 线程句柄) {printf("设置线程的dr寄存器1\n");CONTEXT ctx;ctx.ContextFlags = CONTEXT_ALL;GetThreadContext(线程句柄, &ctx);ctx.Dr0 = 被拦截修改的函数的地址;ctx.Dr7 = 0x1;SetThreadContext(线程句柄, &ctx);printf("设置线程的dr寄存器2\n");
}VOID 使用dr寄存器拦截修改函数() {printf("使用dr寄存器拦截修改函数1\n");HANDLE 线程快照句柄 = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, GetCurrentProcessId());if (线程快照句柄 == INVALID_HANDLE_VALUE) {printf("线程快照创建失败");return;}THREADENTRY32* 线程结构体 = new THREADENTRY32;线程结构体->dwSize = sizeof(THREADENTRY32);/**Thread32First获取快照中第一个线程返回值bool类型*/// Thread32First(线程快照句柄, &线程结构体);HANDLE 线程句柄 = NULL;printf("使用dr寄存器拦截修改函数2\n");/**Thread32Next获取线程快照中下一个线程*/while (Thread32Next(线程快照句柄, 线程结构体)){if (线程结构体->th32OwnerProcessID == GetCurrentProcessId()) {printf("使用dr寄存器拦截修改函数3\n");线程句柄 = OpenThread(THREAD_ALL_ACCESS, FALSE, 线程结构体->th32ThreadID);printf("使用dr寄存器拦截修改函数4\n");设置线程的dr寄存器(线程句柄);printf("使用dr寄存器拦截修改函数5\n");CloseHandle(线程句柄);}}
}bool AutoHelper(HOOKREFS2) {bool vip = false;if (vip)return false;else return true;
}bool ExitGame(HOOKREFS2) {auto read = _pgamebase->SRO_Res->ReadTitle((wchar_t*)0xEBC968);CString txt;txt.Format(L"------ %s", read->wcstr());read->Ptitle = L"自动助手 [VIP] (%s)";AfxMessageBox(txt);// if (_protect->CheckDebugByNT())AfxMessageBox(L"检测到了DEBUG程序的存在");// AfxMessageBox(L"游戏退出2222!");DWORD* _esp = (DWORD*)_ESP;DWORD _val = _esp[1];if (_val == 0x1035D0C) {// AfxMessageBox(L"游戏退出!");auto hMuls = OpenSemaphore(SEMAPHORE_ALL_ACCESS, FALSE, L"system_seamp");if (hMuls) ReleaseSemaphore(hMuls, 1, 0);client--;ExitProcess(0);}return true;
}GameEx::GameEx()
{// AfxMessageBox(L"注册hook!");// auto h = GetModuleHandle(NULL);// DWORD address = (DWORD)h;// DWORD* addRExit = (DWORD*)(address + 0x88C77E);/**addRExit = 0;*/// CString txt;// txt.Format(L"addRExit[0]D:%d,addRExit[0]X:%X,addRExit:%X", addRExit[0], addRExit[0], addRExit);// AfxMessageBox(txt);// hooker.SetHook((LPVOID)addRExit, 3, ExitGame);//AddVectoredExceptionHandler(1, 异常回调);//设置线程的dr寄存器(GetCurrentThread());
}void GameEx::InitInterface()
{unsigned addr_cps = GetFunctionAddress(0);hooker.SetHook((LPVOID)(addr_cps + 0x30 - 2), 0x3, ExitGame);hooker.SetHook((LPVOID)(addr_cps + 0x51 - 2), 0x3, ExitGame);unsigned addr_autohelper = GetFunctionAddress(1);hooker.SetHook((LPVOID)(addr_autohelper), 0x03, AutoHelper, (LPVOID)(addr_autohelper + 0x90));
}
新加extern_all.h文件
#pragma once
#include "GameBase.h"extern GameBase* _pgamebase;
htdMfcDll.h文件的修改,新加 引入GameBase头文件、game_base变量
// htdMfcDll.h: htdMfcDll DLL 的主标头文件
//#pragma once#ifndef __AFXWIN_H__#error "在包含此文件之前包含 'pch.h' 以生成 PCH"
#endif#include "resource.h" // 主符号
#include "CUI.h"
#include "GameProtect.h"
#include "GameEx.h"
#include "GameBase.h"// ChtdMfcDllApp
// 有关此类实现的信息,请参阅 htdMfcDll.cpp
//class ChtdMfcDllApp : public CWinApp
{
public:ChtdMfcDllApp();// 重写
public:virtual BOOL InitInstance();CUI* wndMain{};DECLARE_MESSAGE_MAP()
protected:GameProtect protect;GameEx game_ex;GameBase game_base;
};
新加Res.cpp文件
#include "pch.h"
#include "Res.h"
// 这里为了给 _ReadTitle 默认值,防止编译不通过
Res::PROC_WCHAR1 Res::_ReadTitle{};
psro_string Res::ReadTitle(wchar_t* index)
{/**获取按钮文字通过逆向分析,看出是一个thiscall在调用获取文字函数时给ecx赋值了,这是典型的thiscall方式下方(this->*_ReadTitle)(index)写法翻译成汇编就会是mov ecx,thismov eax, [ecx+xxx];push indexcall eax大概就会变成上方四行代码,也就是一个thiscall如果穿插汇编代码,会很lou,这样用c++写就很优雅*/return (this->*_ReadTitle)(index);
}
新加Res.h文件
#pragma once
// sro_string通过逆向分析,文字获取方式得到的一个结构体
typedef class sro_string {
public:int un1;union {wchar_t title[0x4];wchar_t* Ptitle;};int un2[0x2];unsigned lenth;unsigned size;public:wchar_t* wcstr() {if (size < 0x8) {return title;}else {return Ptitle;}}
}*psro_string;typedef class Res
{// 定义一个函数指针typedef psro_string(Res::* PROC_WCHAR1)(wchar_t*);
public:// 给函数指针声明一个变量static PROC_WCHAR1 _ReadTitle;// 封装 _ReadTitle 使用时比较好用psro_string ReadTitle(wchar_t* index);}*PRes;
新加GameBase.h文件
#pragma once
#include "Res.h"
class GameBase
{void Init();void InitClassProc(LPVOID proc_addr, unsigned value);
public:GameBase();PRes SRO_Res;
};
新加GameBase.cpp文件
#include "pch.h"
#include "GameBase.h"GameBase* _pgamebase;void GameBase::Init()
{SRO_Res = (PRes)0x1036518;InitClassProc(&Res::_ReadTitle, 0x9A46C0);
}void GameBase::InitClassProc(LPVOID proc_addr, unsigned value)
{unsigned* uWrite = (unsigned*)proc_addr;uWrite[0] = value;
}GameBase::GameBase()
{_pgamebase = this;Init();// 初始化机制,完成游戏与我们dll的对接
}