getoutputdlg.cpp

能够截获简单的输入数据, 但不能用来窃取密码哦

// getoutputDlg.cpp : implementation file
//

#include "stdafx.h"
#include "getoutput.h"
#include "getoutputDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGetoutputDlg dialog

CGetoutputDlg::CGetoutputDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGetoutputDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGetoutputDlg)
	m_Edit1 = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CGetoutputDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGetoutputDlg)
	DDX_Text(pDX, IDC_EDIT1, m_Edit1);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CGetoutputDlg, CDialog)
	//{{AFX_MSG_MAP(CGetoutputDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGetoutputDlg message handlers

BOOL CGetoutputDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CGetoutputDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CGetoutputDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CGetoutputDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CGetoutputDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
	/*
	typedef struct _SECURITY_ATTRIBUTES //sa
	{ 
           DWORD nLength;   //nLength是结构体的大小
           LPVOID lpSecurityDescriptor; //lpSecurityDescriptor是安全描述符(一个C-Style的字符串)
           BOOL bInheritHandle; //bInheritHandle他指出了安全描述的对象能否被新创建的进程继承
	} SECURITY_ATTRIBUTES*/

	SECURITY_ATTRIBUTES sa;
	HANDLE hRead,hWrite;//hWrite 向管道写数据,hRead从管道读数据
        
	sa.nLength = sizeof(SECURITY_ATTRIBUTES);
	sa.lpSecurityDescriptor = NULL; //使用系统默认的安全描述符
	sa.bInheritHandle = TRUE;       //一定要为TRUE，不然句柄不能被继承
	/*
	BOOL CreatePipe(
           PHANDLE hReadPipe, // 指向读端句柄的指针
           PHANDLE hWritePipe, // 指向写端句柄的指针
           LPSECURITY_ATTRIBUTES lpPipeAttributes, // 指向安全属性结构的指针
           DWORD nSize // 管道的容量,nSize一般指定为0,以便让系统自己决定管道的容量
	);*/
	if (!CreatePipe(&hRead,&hWrite,&sa,0)) 
	{
		MessageBox("Error On CreatePipe()");
		return;
	}


	STARTUPINFO si;
	PROCESS_INFORMATION pi; 
	si.cb = sizeof(STARTUPINFO);
	GetStartupInfo(&si); 
	si.hStdError = hWrite;
	si.hStdOutput = hWrite;
	si.wShowWindow = SW_HIDE;
	si.dwFlags = STARTF_USESHOWWINDOW | STARTF_USESTDHANDLES;
	/*BOOL CreateProcess(
           LPCTSTR lpApplicationName, // C-style字符串:应用程序的名称 
           LPTSTR lpCommandLine, // C-style字符串:执行的命令
           LPSECURITY_ATTRIBUTES lpProcessAttributes, // 进程安全属性
           LPSECURITY_ATTRIBUTES lpThreadAttributes, // 线程安全属性
           BOOL bInheritHandles, // 是否继承句柄的标志
           DWORD dwCreationFlags, // 创建标志
           LPVOID lpEnvironment, // C-Style字符串：环境设置
           LPCTSTR lpCurrentDirectory, // C-Style字符串：执行目录
           LPSTARTUPINFO lpStartupInfo, // 启动信息
           LPPROCESS_INFORMATION lpProcessInformation // 进程信息
	);*/
	if (!CreateProcess(NULL,"c:\\windows\\system32\\cmd.exe /C dir"
        ,NULL,NULL,TRUE,NULL,NULL,NULL,&si,&pi)) 
	{
        MessageBox("Error on CreateProcess()");
        return;
	}

	CloseHandle(hWrite);
        
	char buffer[4096] = {0};
	DWORD bytesRead; 
	while (true) 
	{
		if (ReadFile(hRead,buffer,4095,&bytesRead,NULL) == NULL)
			break;
	//	m_Edit1 += buffer;
		m_Edit1="hello world  \n  hello world";
		UpdateData(false);
		Sleep(200); 
		::AfxMessageBox("1111");
	} 
	::AfxMessageBox("fasd");

	
	
}