alakhnors-post-thumb

a mail i recieved from my host:

please forward to your sysadmin.
thanks,
Justin

There’s slow log entries that look like this when the load goes high:

# Time: 080907 10:49:03
# User@Host: hayadan_press[hayadan_press] @ localhost []
# Query_time: 7 Lock_time: 0 Rows_sent: 1693 Rows_examined: 3386
SELECT * FROM wp_pt_post ORDER BY post_id DESC;
# User@Host: hayadan_press[hayadan_press] @ localhost []
# Query_time: 8 Lock_time: 1 Rows_sent: 1693 Rows_examined: 3386
SELECT * FROM wp_pt_post ORDER BY post_id DESC;

Many more of this in a very short time. Probably an attack that wouldn’t
work without a specific code.

The code is in /wp/wp-content/plugins/alakhnors-post-thumb/post-thumb.php
at line 114:
$select = ” SELECT * FROM “.$this->table_pt_post.” ORDER BY post_id DESC”;

I uncommented the follow line just below that code
// To limit memory usage, uncomment the following line.
$select .= ” LIMIT “.$this->LoadPostLimit;

and change the value of LoadPostLimit from 200 to 20.

If this plugin is causing such problem, maybe it needs to be removed
or upgraded.