同样的代码,在XP下面随便你怎么整,WIN7的话是相当纠结的,具体哪些错误就不解释了 ~~
gg点了二十多页,在韩国某大牛的博客上总算找到一点思路(虽然看不懂韩文,但代码还算勉强看得懂吧)
原来是要用动态调用ntdll.dll >> NtCreateRemoteThreadEx ,于是over~~
说明:
1、InjectDll.exe 是注入DLL的EXE
2、dummy.dll 是一个普通DLL,加载后弹出MessageBox
下面是一个XP中远程线程注入DLL的代码,在WIN7 + OD调试的例子:
看看错误信息:
杯具了,接着看! 重新运行OD调试,bp CreateRemoteThread :
看看CreateRemoteThread 中的几个参数:
上图重要标记的几个参数:
(1) svchost.exe (PID: 3184) 句柄
(2) kernel32.dll ! LoadLibarayA
(3) 在svchost中为C://Work//dummy.dll字符串所分配的首地址
进入CreateRemoteThread :
我们发现,实际上是调用kernelbase >> CreateRemoteThreadEx 函数。
(GG了这个DLL,原来是它是继VISTA/WIN7之后额外的DLL,负责协助Kernel32.dll的调用!)
那我们看看这个函数调用栈中的参数吧:
发现与kernel32.dll >> CreateRemoteThread 参数一模一样!
OK ! 我们再继续跟进kernelbase.dll >> CreateRemoteThreadEx :
那我们看看这个函数调用栈中的参数吧:
OK,这算到底儿了,因为ntdll.dll >> ZwCreateThreadEx 已经运行到了内核代码,我们的OD没办法再调试了!
于是请google sysenter吧!
特别说明,kernelbase.dll >> CreateRemoteThreadEx 是对 ntdll.dll >> ZwCreateThreadEx 的补充扩展!
那我们都得到这样的结果 :
ntdll.dll >> ZwCreateThreadEx 是未公开的API,MSDN、GG也很难找到相关资料!
下面是看看这个结构体伪代码:
typedef DWORD (WINAPI *PFNTCREATETHREADEX) ( PHANDLE ThreadHandle, ACCESS_MASK DesiredAccess, LPVOID ObjectAttributes, HANDLE ProcessHandle, LPTHREAD_START_ROUTINE lpStartAddress, LPVOID lpParameter, BOOL CreateSuspended, DWORD dwStackSize, DWORD dw1, DWORD dw2, LPVOID Unknown );
OK ,那剩下的我们只需要重写CreateThreadEx 函数即可!
为了保证XP的兼容,所以需要判断一下OS版本,下面是完整的测试代码:
#include "windows.h" #include "stdio.h" #include "tchar.h" #pragma comment(lib,"Advapi32.lib") BOOL SetPrivilege(LPCTSTR lpszPrivilege, BOOL bEnablePrivilege) { TOKEN_PRIVILEGES tp; HANDLE hToken; LUID luid; if( !OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken) ) { _tprintf("OpenProcessToken error: %u/n", GetLastError()); return FALSE; } if( !LookupPrivilegeValue(NULL, lpszPrivilege, &luid) ) { _tprintf("LookupPrivilegeValue error: %u/n", GetLastError() ); return FALSE; } tp.PrivilegeCount = 1; tp.Privileges[0].Luid = luid; if( bEnablePrivilege ) tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; else tp.Privileges[0].Attributes = 0; if( !AdjustTokenPrivileges(hToken, FALSE, &tp, sizeof(TOKEN_PRIVILEGES), (PTOKEN_PRIVILEGES) NULL, (PDWORD) NULL) ) { _tprintf("AdjustTokenPrivileges error: %u/n", GetLastError() ); return FALSE; } if( GetLastError() == ERROR_NOT_ALL_ASSIGNED ) { _tprintf("The token does not have the specified privilege. /n"); return FALSE; } return TRUE; } typedef DWORD (WINAPI *PFNTCREATETHREADEX) ( PHANDLE ThreadHandle, ACCESS_MASK DesiredAccess, LPVOID ObjectAttributes, HANDLE ProcessHandle, LPTHREAD_START_ROUTINE lpStartAddress, LPVOID lpParameter, BOOL CreateSuspended, DWORD dwStackSize, DWORD dw1, DWORD dw2, LPVOID Unknown ); BOOL IsVistaOrLater() { OSVERSIONINFO osvi; ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); GetVersionEx(&osvi); if( osvi.dwMajorVersion >= 6 ) return TRUE; return FALSE; } BOOL MyCreateRemoteThread(HANDLE hProcess, LPTHREAD_START_ROUTINE pThreadProc, LPVOID pRemoteBuf) { HANDLE hThread = NULL; FARPROC pFunc = NULL; if( IsVistaOrLater() ) // Vista, 7, Server2008 { pFunc = GetProcAddress(GetModuleHandle("ntdll.dl"), "NtCreateThreadEx"); if( pFunc == NULL ) { printf("MyCreateRemoteThread() : GetProcAddress(/"NtCreateThreadEx/") 调用失败!错误代码: [%d]/n", GetLastError()); return FALSE; } ((PFNTCREATETHREADEX)pFunc)(&hThread, 0x1FFFFF, NULL, hProcess, pThreadProc, pRemoteBuf, FALSE, NULL, NULL, NULL, NULL); if( hThread == NULL ) { printf("MyCreateRemoteThread() : NtCreateThreadEx() 调用失败!错误代码: [%d]/n", GetLastError()); return FALSE; } } else // 2000, XP, Server2003 { hThread = CreateRemoteThread(hProcess, NULL, 0, pThreadProc, pRemoteBuf, 0, NULL); if( hThread == NULL ) { printf("MyCreateRemoteThread() : CreateRemoteThread() 调用失败!错误代码: [%d]/n", GetLastError()); return FALSE; } } if( WAIT_FAILED == WaitForSingleObject(hThread, INFINITE) ) { printf("MyCreateRemoteThread() : WaitForSingleObject() 调用失败!错误代码: [%d]/n", GetLastError()); return FALSE; } return TRUE; } BOOL InjectDll(DWORD dwPID, char *szDllName) { HANDLE hProcess = NULL; LPVOID pRemoteBuf = NULL; FARPROC pThreadProc = NULL; DWORD dwBufSize = strlen(szDllName)+1; if ( !(hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, dwPID)) ) { printf("[错误] OpenProcess(%d) 调用失败!错误代码: [%d]/n", dwPID, GetLastError()); return FALSE; } pRemoteBuf = VirtualAllocEx(hProcess, NULL, dwBufSize, MEM_COMMIT, PAGE_READWRITE); WriteProcessMemory(hProcess, pRemoteBuf, (LPVOID)szDllName, dwBufSize, NULL); pThreadProc = GetProcAddress(GetModuleHandle("kernel32.dl"), "LoadLibraryA"); if( !MyCreateRemoteThread(hProcess, (LPTHREAD_START_ROUTINE)pThreadProc, pRemoteBuf) ) { printf("[错误] CreateRemoteThread() 调用失败!错误代码: [%d]/n", GetLastError()); return FALSE; } VirtualFreeEx(hProcess, pRemoteBuf, 0, MEM_RELEASE); CloseHandle(hProcess); return TRUE; } int main(int argc, char *argv[]) { SetPrivilege(SE_DEBUG_NAME, TRUE); // InjectDll.exe <PID> <dllpath> if( argc != 3 ) { printf("用法 : %s <进程PID> <dll路径>/n", argv[0]); return 1; } if( !InjectDll((DWORD)atoi(argv[1]), argv[2]) ) { printf("InjectDll调用失败!/n"); return 1; } printf("InjectDll调用成功!/n"); return 0; }
DLL就不贴了吧,有兴趣的友友可以参考一下~~
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