计算机网络安全技术实验

计算机网络安全技术实验案例名称：操作注册表程序名称：#includestdio.h#includewindows.hmain(){HKEYhKey1;DWORDdwDisposition;LONGlRetCode;//创建lRetCode=RegCreateKeyEx(HKEY_LOCAL_MACHINE,SOFTWARE\\Microsoft\\WindowsNT\\CurrentVersion\\IniFileMapping\\WebSecurity,0,NULL,REG_OPTION_NON_VOLATILE,KEY_WRITE,NULL,&hKey1,&dwDisposition);//如果创建失败，显示出错信息if(lRetCode!=ERROR_SUCCESS){printf(ErrorincreatingWebSecuritykey\n);return(0);}//设置第一个键值lRetCode=RegSetValueEx(hKey1,Hack_Name,0,REG_SZ,(byte*)sixage,100);//设置第二个键值lRetCode=RegSetValueEx(hKey1,Hack_Hobby,0,REG_SZ,(byte*)Running,100);//如果创建失败，显示出错信息if(lRetCode!=ERROR_SUCCESS){printf(ErrorinsettingSection1value\n);return(0);}printf(注册表编写成功！\n);return(0);}案例名称：判断是否中了“冰河”程序名称：proj3_13.cpp#includestdio.h#includewindows.hmain(){HKEYhKEY;LPCTSTRdata_Set=txtfile\\shell\\open\\command;longret0=(RegOpenKeyEx(HKEY_CLASSES_ROOT,data_Set,0,KEY_READ,&hKEY));if(ret0!=ERROR_SUCCESS)//如果无法打开hKEY，则终止程序的执行{return0;}//查询有关的数据LPBYTEowner_Get=newBYTE[80];DWORDtype_1=REG_EXPAND_SZ;DWORDcbData_1=80;longret1=RegQueryValueEx(hKEY,NULL,NULL,&type_1,owner_Get,&cbData_1);if(ret1!=ERROR_SUCCESS){return0;}if(strcmp((constchar*)owner_Get,%systemroot%\\system32\\notepad.exe%1)==0){printf(没有中冰河);}else{printf(可能中了冰河);}printf(\n);}编译运行会有下面结果然后在注册表中HKEY_CLASSES_ROOT主键下的“txtfile\shell\open\command”将值改为其他的，然后再运行。会有下面结果。案例名称：更改系统登录用户程序名称：proj3_14.cpp#includestdio.h#includewindows.hmain(){HKEYhKey1;LONGlRetCode;lRetCode=RegOpenKeyEx(HKEY_LOCAL_MACHINE,SOFTWARE\\Microsoft\\WindowsNT\\CurrentVersion\\Winlogon,0,KEY_WRITE,&hKey1);if(lRetCode!=ERROR_SUCCESS){printf(Errorincreatingappname.inikey\n);return(0);}lRetCode=RegSetValueEx(hKey1,DefaultUserName,0,REG_SZ,(byte*)Hacker_sixage,20);if(lRetCode!=ERROR_SUCCESS){printf(ErrorinsettingSection1value\n);return(0);}printf(已经将登录名该成Hacker_sixage);return(0);}文件系统编程非常的重要，可以在DOS命令行下执行的操作都可以使用程序实现。在DOS命令行下使用命令“netuserHacker/add”添加一个用户，同样可以在程序中实现，如程序proj3_15.cpp所示。案例名称：添加系统用户程序名称：proj3_15.cpp#includestdio.h#includewindows.hmain(){char*szCMD=netuserHacker/add;BOOLbSuccess;PROCESS_INFORMATIONpiProcInfo;STARTUPINFOInfo;Info.cb=sizeof(STARTUPINFO);Info.lpReserved=NULL;Info.lpDesktop=NULL;Info.lpTitle=NULL;Info.cbReserved2=0;Info.lpReserved2=NULL;bSuccess=CreateProcess(NULL,szCMD,NULL,NULL,false,NULL,NULL,NULL,&Info,&piProcInfo);if(!bSuccess)printf(创建进程失败！);return1;}案例名称：系统时间程序名称：proj3_17.cpp#includewindows.h#includestdio.hmain(){SYSTEMTIMEsysTime;GetLocalTime(&sysTime);printf(%d年%d月%d日%d时%d分%d秒\n,sysTime.wYear,sysTime.wMonth,sysTime.wDay,sysTime.wHour,sysTime.wMinute,sysTime.wSecond);return1;}案例名称：定时器编程程序名称：proj3_18.cpp#includewindows.hWNDCLASSwc;HWNDh_wnd;MSGmsg;/*消息处理函数wndProc的声明*/longWINAPIWindowProc(HWND,UINT,WPARAM,LPARAM);/*winMain函数的声明*/intPASCALWinMain(HINSTANCEh_CurInstance,HINSTANCEh_PrevInstance,LPSTRp_CmdLine,intm_Show){/*初始化wndclass结构变量*/wc.lpfnWndProc=WindowProc;wc.hInstance=h_CurInstance;wc.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);wc.lpszClassName=TheMainClass;/*注册WndClass结构变量*/RegisterClass(&wc);/*创建窗口*/h_wnd=CreateWindow(TheMainClass,OurfirstWindow,WS_OVERLAPPEDWINDOW,0,0,400,500,0,0,h_CurInstance,0);/*显示窗口*/ShowWindow(h_wnd,SW_SHOWMAXIMIZED);/*消息循环*/while(GetMessage(&msg,NULL,0,0))DispatchMessage(&msg);return(msg.wParam);}#defineID_TIMER1/*定义消息处理函数*/longWINAPIWindowProc(HWNDh_wnd,UINTWinMsg,WPARAMw_param,LPARAMl_param){staticBOOLfFlipFlop=FALSE;HBRUSHhBrush;HDChdc;PAINTSTRUCTps;RECTrc;switch(WinMsg){caseWM_CREATE:SetTimer(h_wnd,ID_TIMER,1000,NULL);return0;caseWM_TIMER:MessageBeep(-1);fFlipFlop=!fFlipFlop;InvalidateRect(h_wnd,NULL,FALSE);return0;caseWM_PAINT:hdc=BeginPaint(h_wnd,&ps);GetClientRect(h_wnd,&rc);hBrush=CreateSolidBrush(fFlipFlop?RGB(255,0,0):RGB(0,0,255));FillRect(hdc,&rc,hBrush);EndPaint(h_wnd,&ps);DeleteObject(hBrush);return0;caseWM_DESTROY:KillTimer(h_wnd,ID_TIMER);PostQuitMessage(0);return0;}returnDefWindowProc(h_wnd,WinMsg,w_param,l_param);}案例名称：内存驻留程序的编写程序名称：proj3_19.cpp#includewindows.hWNDCLASSwc;HWNDh_wnd;MSGmsg;/*消息处理函数wndProc的声明*/longWINAPIWindowProc(HWND,UINT,WPARAM,LPARAM);/*winMain函数的声明*/intPASCALWinMain(HINSTANCEh_CurInstance,HINSTANCEh_PrevInstance,LPSTRp_CmdLine,intm_Show){/*初始化wndclass结构变量*/wc.lpfnWndProc=WindowProc;wc.hInstance=h_CurInstance;wc.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);wc.lpszClassName=TheMainClass;/*注册WndClass结构变量*/RegisterClass(&wc);/*创建窗口*/h_wnd=CreateWindow(TheMainClass,OurfirstWindow,WS_OVERLAPPEDWINDOW,0,0,400,500,0,0,h_CurInstance,0);/*显示窗口*/ShowWindow(h_wnd,SW_HIDE);/*消息循环*/while(GetMessage(&msg,NULL,0,0))DispatchMessage(&msg);return(msg.wParam);}#defineID_TIMER1/*定义消息处理函数*/longWINAPIWindowProc(HWNDh_wnd,UINTWinMsg,WPARAMw_param,LPARAMl_param){staticBOOLfFlipFlop=FALSE;HBRUSHhBrush;HDChdc;PAINTSTRUCTps;RECTrc;switch(WinMsg){caseWM_CREATE:SetTimer(h_wnd,ID_TIMER,1000,NULL);return0;caseWM_TIMER:MessageBeep(-1);fFlipFlop=!fFlipFlop;InvalidateRect(h_wnd,NULL,FALSE);return0;caseWM_PAINT:hdc=BeginPaint(h_wnd,&ps);GetClientRect(h_wnd,&rc);hBrush=CreateSolidBrush(fFlipFlop?RGB(255,0,0):RGB(0,0,255));Fill