在Delphi中隐藏程序进程

在开发某些软件的时候,为了保护程序自身,就需要用到隐藏程序进程。以下通过实例来讲解隐藏程序进程的方法:

1、创建一个新的项目   Project1
选择File,New   Application。在表单Form1上放一Memo组件,一个OK按钮组件,改变OK按钮组件的Cation属性为   CreateProcess。再放一个timer组件。设置timer组件的Interval值为1000,每秒检查一次进程是否终止。

2、在Unit1   Use节的Type后定义一个过程
procedure   EstablishProcess;
在Unit1   Use节的Var后定义一个变量:
piProcInfoGPS:PROCESS_INFORMATION;

3、在Unit1   implementation节中编写EstablishProcess过程的实现代码如下:
procedure   EstablishProcess;
Var
  siStartupInfSTARTUPINFO;
  saProcess,saThread:SECURITY_ATTRIBUTES;
  fSuccess:boolean;
begin
  fSuccess:=false;
  ZeroMemory(@siStartupInfo,sizeof(siStartupInfo));
  siStartupInfo.cb:=sizeof(siStartupInfo);
  saProcess.nLength:=sizeof(saProcess);
  saProcess.lpSecurityDescriptor:=PChar(nil);
  saProcess.bInheritHandle:=true;
  saThread.nLength:=sizeof(saThread);
  saThread.lpSecurityDescriptor:=PChar(nil);
  saThread.bInheritHandle:=true;
  fSuccess:=CreateProcess(PChar(nil),'c:\sr350\Sr350buff',@saProcess,@saThread,false,
  CREATE_DEFAULT_ERROR_MODE,Pchar(nil),Pchar(nil),siStartupInfo,piProcInfoGPS);
  if(   not   fSuccess)then
    Form1.Memo1.Lines.Add('Create   Process   Sr350buff   fail.')
  else
    Form1.Memo1.Lines.Add('Create   Process   Sr350buff   success.')
end;
4、在CreateProcess按钮的OnClick事件中调用过程
EstablishProcess;
5、为Timer1的OnTimer事件编写代码:
Procedure   TForm1.Timer1Timer(Sender:   TObject);
Var
  dwExitCode:DWORD;
  fprocessExit:boolean;
Begin
  dwExitCode:=0;
  fprocessExit:=false;
  fprocessExit:=GetExitCodeProcess(piProcInfoGPS.hProcess,dwExitCode);
  if(fprocessExit   and   (dwExitCode<>STILL_ACTIVE))then
  begin
    Memo1.Lines.Add('SR350buff.exe进程终止');
    CloseHandle(piProcInfoGPS.hThread);
    CloseHandle(piProcInfoGPS.hProcess);
    EstablishProcess;
  end;
End;
6、程序中设可执行文件名为c:\sr350\sr350buff.exe,所以c:盘\sr350目录下需有sr350buff.exe文件。
7、编译联接,运行project1,单击CreateProcess可见c:\sr350\sr350buff.exe启动。关掉sr350buff.exe进程,可见sr350buff.exe自动再启动。


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