[原]VC++信息安全编程（8）分析程序实现自我删除
很多时候，我们制作自动安装程序，安装完成以后自动删除，软件仅仅安装一次就自动删除，以保护软件知识产权。软件自动删除的代码是如何实现的呢，我们来看下
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CSelfDelDlg dialog
CSelfDelDlg::CSelfDelDlg(CWnd* pParent /*=NULL*/)
: CDialog(CSelfDelDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CSelfDelDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CSelfDelDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CSelfDelDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CSelfDelDlg, CDialog)
//{{AFX_MSG_MAP(CSelfDelDlg)
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_Delete_1, OnDelete1)
ON_BN_CLICKED(IDC_Delete_2, OnDelete2)
ON_BN_CLICKED(IDC_Any, OnAny)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CSelfDelDlg message handlers
BOOL CSelfDelDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 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 TRUEunless you set the focus to a control
}
// 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 CSelfDelDlg::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 CSelfDelDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CSelfDelDlg::OnDelete1()
{
/*char name;
char *ptr=::GetCommandLine();
strncpy(name,ptr,255);
for(int i=1;i<256;i++)if(name=='\"')break;
char path;
for(int j=0;j<i;
*/
HMODULE module = GetModuleHandle(0);
CHAR buf;
GetModuleFileName(module, buf, sizeof(buf));
if(DeleteFile(buf))AfxMessageBox("自我删除成功!");
else MessageBox("自我删除失败!","直接用 DeleteFile",MB_OK|MB_ICONEXCLAMATION);
}
void CSelfDelDlg::OnDelete2()
{
HMODULE module = GetModuleHandle(0);
CHAR buf;
GetModuleFileName(module, buf, sizeof buf);
CloseHandle(HANDLE(4));
__asm {
lea eax, buf
push 0
push 0
push eax
push ExitProcess
push module
push DeleteFile
push UnmapViewOfFile
ret
}
}
void CSelfDelDlg::OnAny()
{
OSVERSIONINFO ver;
ver.dwOSVersionInfoSize=sizeof(ver);
GetVersionEx(&ver);
//if(ver.dwPlatformId==VER_PLATFORM_WIN32_WINDOWS){//Is win95 or 98
AfxMessageBox("98");
HMODULE h = GetModuleHandle(0);
CHAR buf;
GetModuleFileName(h, buf, sizeof buf);
FILE *fp;
if(!(fp=fopen("c:\\anyexe.bat","wb")))return;
CString in;
in="del ";
in+=buf;
in+="\r\n";
in+="del ";
in+="c:\\anyexe.bat";
fwrite(in.GetBuffer(0),in.GetLength(),1,fp);
fclose(fp);
AfxMessageBox(in);
::ShellExecute(0,NULL,"command.exe","c:\\anyexe.bat",NULL,0);
/*
}
else if(ver.dwPlatformId==VER_PLATFORM_WIN32_NT)//Is Nt or 2000
{
//AfxMessageBox("2000");
HMODULE module = GetModuleHandle(0);
CHAR buf;
GetModuleFileName(module, buf, sizeof buf);
CloseHandle(HANDLE(4));
__asm {
lea eax, buf
push 0
push 0
push eax
push ExitProcess
push module
push DeleteFile
push UnmapViewOfFile
ret
}
*/
//}
//else{
//}
}
作者：yincheng01 发表于2011-12-14 23:42:51 原文链接
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