自己写的一段C语言HOOK汇编指令代码

waym · 发表于 2016-9-7 14:39

本帖最后由 waym 于 2016-9-7 16:49 编辑

测试环境 vs2013
注意如果自己测试的话请使用Rlease，因为DEBUG版会把函数名编译成跳转形式  不支持覆盖跳转类指令，具体情况读了代码就知道了
同样玩C语言的朋友可以联系我一起讨论

需要的朋友拿走。
不同用途自行修改。上面是带有一些调试信息的版本
下面是包装的比较干净的版本

修改：自定义的处理函数原型  void EditHook(const unsigned,const int,
void (*)(unsigned)); // 调用时传入hook_info_array[2000] 的当前下标这样容易处理一些事情  void func(unsigned index);

[C] 纯文本查看 复制代码

#include<Windows.h>
#include"F:\Projects\logbox\logbox\logBox.h"

#define MaxHookVec 2000 /*指定最大容器尺寸*/
#define HOOKINFOBUFFER 25
TCHAR buffer[1000];   // 调试输出缓冲
typedef void(*PF)();

typedef struct c_HookInfo{
        unsigned m_HookAddress;
        PF                 m_ownFunc;
        char         m_read_buffer[HOOKINFOBUFFER];                        // 恢复时用
        char         m_write_buffer[HOOKINFOBUFFER];
        unsigned m_real_over;
}HookInfo, *PHookInfo;
/* memory func */
void Zero_hook_info(PHookInfo);
void Unhook_and_free_memory();
PHookInfo g_pHookInfo_array[MaxHookVec];
unsigned  g_cntHook = 0;

void mod(){    // 中转代码块
        __asm{
                        mov edi, edi
                        mov edi, edi
                        pushfd
                        pushad
                        mov edx,[esp+0x24]

                        mov eax, [esp+0x20]
                        mov[esp+ 0x24],eax
                        mov eax, [esp + 0x1C]
                        mov[esp + 0x20], eax
                        mov eax, [esp + 0x18]
                        mov[esp + 0x1C], eax
                        mov eax, [esp + 0x14]
                        mov[esp + 0x18], eax
                        mov eax, [esp + 0x10]
                        mov[esp + 0x14], eax
                        mov eax, [esp + 0xC]
                        mov[esp + 0x10], eax
                        mov eax, [esp + 0x8]
                        mov[esp + 0xC], eax
                        mov eax, [esp + 0x4]
                        mov[esp + 0x8], eax
                        mov eax, [esp]
                        mov[esp + 0x4],eax
                        pop eax
        }
        int rAddress = -5;
        __asm add rAddress,edx
        for (unsigned i = 0; i != g_cntHook;++i)
                if (g_pHookInfo_array[i]->m_HookAddress == rAddress){
                        rAddress = i;
                        break;
                }
        g_pHookInfo_array[rAddress]->m_ownFunc();
        unsigned read_i = (unsigned)g_pHookInfo_array[rAddress]->m_read_buffer;
        __asm{
                popad
                popfd
                jmp read_i

        }
}


void HookAddress(const unsigned addr,                // 目标地址
        const int length,                                        // 实际覆盖的指令长度
        PF pfunc)                                        // 自己的函数地址
{
        log_print(L"HookAddress() exec ..\n");
        g_pHookInfo_array[g_cntHook]
                = VirtualAlloc(NULL, sizeof(HookInfo), MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);
        

        switch ((unsigned)g_pHookInfo_array[g_cntHook]){
        case NULL:
                /* 自定义处理 内存分配失败.. */
                return;

        default:
                Zero_hook_info((PHookInfo)g_pHookInfo_array[g_cntHook]);
                break;
        }

#define hk (*g_pHookInfo_array[g_cntHook])
        hk.m_HookAddress = addr;
        hk.m_real_over = length;
        hk.m_ownFunc = pfunc;
        HANDLE proc_hand = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetProcessId(GetCurrentProcess()));
        ReadProcessMemory(proc_hand, (char*)addr, hk.m_read_buffer, length, NULL);
        
        hk.m_read_buffer[length] = 0xE9;
        *(unsigned*)(hk.m_read_buffer + length + 1) = hk.m_HookAddress + hk.m_real_over
                - (unsigned)(hk.m_read_buffer + length) - 5;
        unsigned mod_offset = 0;
        for (int i = 0; i < 50; ++i){
                if ( *(unsigned*)(((char*)mod)+i) == 0xff8bff8b){
                        mod_offset = (unsigned)mod + i + 4 - addr - 5;
                        break;
                }
                /* 内存标记未找到 */
                if (i == 49)MessageBox(NULL, L".49.", L"..", MB_OK);
        }
        hk.m_write_buffer[0] = (char)0xE8;
        ((unsigned*)(hk.m_write_buffer + 1))[0] = mod_offset;
        WriteProcessMemory(proc_hand, (char*)addr, hk.m_write_buffer, length, NULL);
        
        CloseHandle(proc_hand);
#undef hk
        ++g_cntHook;
        return;
}

void test(){
/*通信代码*/
        log_print(L"test() 我们的处理函数\n");
}


BOOLEAN WINAPI DllMain(
IN HINSTANCE hDllHandle,
IN DWORD     nReason,
IN LPVOID    Reserved
)
{
        //  Perform global initialization.
        switch (nReason)
        {
        case DLL_PROCESS_ATTACH:
                LogBoxInit();
                log_print(L"DLL_PROCESS_ATTACH exec..\n");
                //  For optimization.
                DisableThreadLibraryCalls(hDllHandle);
                HookAddress(0x401245, 7, test);
//                Unhook_and_free_memory();
                break;

        case DLL_PROCESS_DETACH:
                log_print(L"DLL_PROCESS_DETACH exec..\n");
                break;
        }


        return TRUE;

}

void Zero_hook_info(PHookInfo hk_info)
{
#define hk hk_info
        hk->m_HookAddress = 0;
        hk->m_ownFunc = NULL;
        int i = 0;
        for (; i < HOOKINFOBUFFER; ++i)
                hk->m_read_buffer[i] = hk->m_write_buffer[i] = 0x90;
        hk->m_real_over = 0;
#undef hk
        return;
}

void Unhook_and_free_memory()
{
        HANDLE proc_hand = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetProcessId(GetCurrentProcess()));
        for (unsigned i = 0; i != g_cntHook; ++i){
                WriteProcessMemory(proc_hand, (void*)g_pHookInfo_array[i]->m_HookAddress,
                        g_pHookInfo_array[i]->m_read_buffer,
                        g_pHookInfo_array[i]->m_real_over, NULL);
                VirtualFree(g_pHookInfo_array[i], 0, MEM_RELEASE);
        }
        return;
}

[C] 纯文本查看 复制代码

[/i][/i][/i][/i][/i][/i][/i][i][i][i][i][i][i][i][i][i][i][i][i][i][i]#include<Windows.h>
[/i][/i][/i][/i][/i][/i][/i][/i][/i][/i][/i][/i][/i][/i][i][i][i][i][i][i][i][i][i][i][i][i][i][i]typedef struct c_HookInfo{
        unsigned m_HookAddress;
        void        (*m_ownFunc)(unsigned);
        char         m_read_buffer[25];                        // 恢复时用
        char         m_write_buffer[25];
        unsigned m_real_over;
}HookInfo, *PHookInfo;
/* memory func */
///>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 
void mod();                //// 中转代码块
void Unhook_and_free_memory();
void Zero_hook_info(PHookInfo hk_info);
void EditHook(const unsigned,const int,void (*)(unsigned));
///<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

struct CHook_Member{
        void (*Unhook_and_free_memory)();                // 恢复代码和释放内存
        void (*Edit_hook)(const unsigned,                                // HOOK 地址
                const int,                                                                        // 实际损坏的指令长度
                void(*)(unsigned));                                                                        // 自定义的处理函数
        PHookInfo hook_info_array[2000];                //hook信息结构容器
        unsigned  cnt_hook;                                                // 存在的hook数量
}h_m ={ Unhook_and_free_memory ,EditHook,0,0,};



void mod(){    
        __asm{
                mov edi, edi
                        mov edi, edi
                        pushfd
                        pushad
                        mov edx, [esp + 0x24]

                        mov eax, [esp + 0x20]
                        mov[esp + 0x24], eax
                        mov eax, [esp + 0x1C]
                        mov[esp + 0x20], eax
                        mov eax, [esp + 0x18]
                        mov[esp + 0x1C], eax
                        mov eax, [esp + 0x14]
                        mov[esp + 0x18], eax
                        mov eax, [esp + 0x10]
                        mov[esp + 0x14], eax
                        mov eax, [esp + 0xC]
                        mov[esp + 0x10], eax
                        mov eax, [esp + 0x8]
                        mov[esp + 0xC], eax
                        mov eax, [esp + 0x4]
                        mov[esp + 0x8], eax
                        mov eax, [esp]
                        mov[esp + 0x4], eax
                        pop eax
        }
        int rAddress = -5;
        __asm add rAddress, edx
        for (unsigned i = 0; i != h_m.cnt_hook; ++i)
                if (h_m.hook_info_array[i]->m_HookAddress == rAddress){
                        rAddress = i;
                        break;
                }
        h_m.hook_info_array[rAddress]->m_ownFunc(rAddress);
        unsigned read_i = (unsigned)h_m.hook_info_array[rAddress]->m_read_buffer;
        __asm{
                popad
                        popfd
                        jmp read_i

        }
}





void Zero_hook_info(PHookInfo hk_info)
{
#define hk hk_info
        hk->m_HookAddress = 0;
        hk->m_ownFunc = NULL;
        int i = 0;
        for (; i < 25; ++i)
                hk->m_read_buffer[i] = hk->m_write_buffer[i] = 0x90;
        hk->m_real_over = 0;
#undef hk
        return;
}

void Unhook_and_free_memory()
{
        HANDLE proc_hand = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetProcessId(GetCurrentProcess()));
        for (unsigned i = 0; i != h_m.cnt_hook; ++i){
                WriteProcessMemory(proc_hand, (void*)h_m.hook_info_array[i]->m_HookAddress,
                        h_m.hook_info_array[i]->m_read_buffer,
                        h_m.hook_info_array[i]->m_real_over, NULL);
                VirtualFree(h_m.hook_info_array[i], 0, MEM_RELEASE);
        }
        return;
}
void EditHook(const unsigned addr,const int length,void (*pfunc)(unsigned))
{
        h_m.hook_info_array[h_m.cnt_hook]
                = VirtualAlloc(NULL, sizeof(HookInfo), MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE);


        switch ((unsigned)h_m.hook_info_array[h_m.cnt_hook]){
        case NULL:
                /* 自定义处理 内存分配失败.. */
                return;

        default:
                Zero_hook_info((PHookInfo)h_m.hook_info_array[h_m.cnt_hook]);
                break;
        }

#define hk (*h_m.hook_info_array[h_m.cnt_hook])
        hk.m_HookAddress = addr;
        hk.m_real_over = length;
        hk.m_ownFunc = pfunc;
        HANDLE proc_hand = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetProcessId(GetCurrentProcess()));
        ReadProcessMemory(proc_hand, (char*)addr, hk.m_read_buffer, length, NULL);

        hk.m_read_buffer[length] = 0xE9;
        *(unsigned*)(hk.m_read_buffer + length + 1) = hk.m_HookAddress + hk.m_real_over
                - (unsigned)(hk.m_read_buffer + length) - 5;
        unsigned mod_offset = 0;
        for (int i = 0; i < 50; ++i){
                if (*(unsigned*)(((char*)mod) + i) == 0xff8bff8b){
                        mod_offset = (unsigned)mod + i + 4 - addr - 5;
                        break;
                }
                /* 内存标记未找到 */
                if (i == 49)MessageBox(NULL, L".49.", L"..", MB_OK);
        }
        hk.m_write_buffer[0] = (char)0xE8;
        ((unsigned*)(hk.m_write_buffer + 1))[0] = mod_offset;
        WriteProcessMemory(proc_hand, (char*)addr, hk.m_write_buffer, length, NULL);
#undef hk
        CloseHandle(proc_hand);
        ++h_m.cnt_hook;
        return;
}

waym · 发表于 2016-9-7 17:02

寒枫雨雪发表于 2016-9-7 16:56
数组中的是怎么写啊？能不能给个范例

char ia[] = { 0xE9, 0x00, 0x10, 0x40, 0x00 };
反汇编： 013C4018 >- E9 00104000 jmp 017C501D

寒枫雨雪 · 发表于 2016-9-7 16:56

waym 发表于 2016-9-7 16:44
用那样的形式嵌入代码中的方法我不清楚，只会写到数组中

数组中的是怎么写啊？能不能给个范例

最初的习惯 · 发表于 2016-9-7 14:46

不觉明历，看见楼主这么辛苦的份上给个好评！

waym · 发表于 2016-9-7 14:53

。。。。。。。。。

LeiSir · 发表于 2016-9-7 15:11

谢谢分享，代码看的不是很明白，好吧！基本上都是不懂的。

waym · 发表于 2016-9-7 15:15

LeiSir 发表于 2016-9-7 15:11
谢谢分享，代码看的不是很明白，好吧！基本上都是不懂的。

没怎么注释。。

寒枫雨雪 · 发表于 2016-9-7 16:00

有没有另一种写法啊? 类似易语言的置入代码 {0xE9 ,0x00 ,0x10 ,0x40 ,0x00};

waym · 发表于 2016-9-7 16:06

寒枫雨雪发表于 2016-9-7 16:00
有没有另一种写法啊? 类似易语言的置入代码 {0xE9 ,0x00 ,0x10 ,0x40 ,0x00};

你指的是？

yuan815 · 发表于 2016-9-7 16:11

支持一下

微若清风 · 发表于 2016-9-7 16:28

楼主厉害

寒枫雨雪 · 发表于 2016-9-7 16:37

waym 发表于 2016-9-7 16:06
你指的是？

C语言的汇编写法

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