C++实现查壳程序代码实例

void CMyPeidDlg::OnBnClickedBtnOpen() 
{ 
    // 获取当前工作路径 
    CString strAppName;//当前工作目录 
    ::GetModuleFileName(NULL, strAppName.GetBuffer(_MAX_PATH), _MAX_PATH); 
    strAppName.ReleaseBuffer(); 
    int nPos = strAppName.ReverseFind('//'); 
    strAppName = strAppName.Left(nPos + 1); 
 
    // AfxMessageBox(strAppName); 
 
 
    // 文件扩展名过滤器 
    LPCTSTR szFilter = "EXE Files (*.EXE)|*.EXE|DLL Files (*.DLL)|*.DLL|All Files (*.*)|*.*||"; 
 
    //初始目录是c:/windows, 初始选择的文件名是test，初始后缀过滤器是 Chart Files (*.xlc) 
    CFileDialog dlg(TRUE,NULL ,strAppName.GetBuffer(_MAX_PATH) ,OFN_ENABLESIZING ,szFilter,NULL); 
    if(dlg.DoModal() == IDOK) 
    { 
        CString strFile = dlg.GetPathName(); // 全路径 
        GetDlgItem(IDC_EDT_FILE)->SetWindowText(strFile.GetBuffer(_MAX_PATH)); 
 
        TRACE("/n&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&/n"); 
        TRACE(strFile); 
        TRACE("/n&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&/n"); 
    } 
} 
 
void CMyPeidDlg::OnBnClickedBtnOk() 
{ 
    GetDlgItem(IDC_EDT_FILE)->SetWindowText("c:\\1.exe"); 
 
    char buf[_MAX_PATH]; 
    ZeroMemory(buf, _MAX_PATH); 
    GetDlgItemText(IDC_EDT_FILE, buf, _MAX_PATH-1); 
    HANDLE hFile = CreateFile(buf, GENERIC_READ,FILE_SHARE_READ, NULL, OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,NULL); 
    if (!hFile) 
    { 
        MessageBox("createFile failed.."); 
        return; 
    } 
    HANDLE hMap = CreateFileMapping(hFile, NULL, PAGE_READONLY, 0, 0,NULL); 
    if (!hMap) 
    { 
        MessageBox("hMap failed.."); 
        return; 
    } 
    LPVOID lpBase = MapViewOfFile(hMap, FILE_MAP_READ, 0, 0, 0); 
    if (!lpBase) 
    { 
        MessageBox("lpBase failed.."); 
        return; 
    } 
 
    DWORD dwOEP; 
    IMAGE_DOS_HEADER *pDosHeader = (IMAGE_DOS_HEADER*)lpBase; 
    IMAGE_NT_HEADERS *pNtHeader = (IMAGE_NT_HEADERS*)((char*)lpBase + pDosHeader->e_lfanew); 
    dwOEP = pNtHeader->OptionalHeader.AddressOfEntryPoint; 
 
    PIMAGE_SECTION_HEADER pSectionHeader = IMAGE_FIRST_SECTION(pNtHeader); 
     
    CString strTemp; 
    strTemp.Format("%0x",dwOEP); 
    SetDlgItemText(IDC_EDT_OEP, strTemp.GetBuffer(4)); 
 
    DWORD FileOffset; 
    for(int i=0; i<pNtHeader->FileHeader.NumberOfSections;i++) 
    { 
        if (dwOEP >= pSectionHeader->VirtualAddress &&  
            dwOEP < pSectionHeader->VirtualAddress + pSectionHeader->SizeOfRawData) 
        { 
            FileOffset = dwOEP - pSectionHeader->VirtualAddress + pSectionHeader->PointerToRawData; 
        } 
        pSectionHeader++; 
    } 
 
    strTemp.Empty(); 
    strTemp.Format("%0x",FileOffset); 
    SetDlgItemText(IDC_EDT_FILEOFFSET, strTemp.GetBuffer(4)); 
 
    //从文件偏移开始读特征码 
    CString strBuf; 
    DWORD dwReaded; 
    SetFilePointer(hFile, FileOffset,0, FILE_BEGIN); 
    ReadFile(hFile, strBuf.GetBuffer(16), 16, &dwReaded,NULL); 
    MessageBox(strBuf.GetBuffer(16)); 
 
    char code[] = "\x60\xE8\x03\x00\x00\x00\xE9\xEB\04\x5D\x45\x55\xC3\xE8\x01"; 
    char fileBuf[16]; 
    memcpy(fileBuf, strBuf.GetBuffer(16),16); 
    char ctype[20]; 
    for (int i=0;i<16;i++) 
    { 
        if (code[i]!=fileBuf[i]) 
        { 
            StrCpy(ctype,"not found"); 
            break; 
        } 
        else if (i==15) 
        { 
            StrCpy(ctype, "aspack"); 
        } 
    } 
    SetDlgItemText(IDC_EDT_SHELLTYPE, ctype); 
}