Updated MySQL from 5.1 to 5.5, Intermittent Error

[mscottralston]

Hi folks,

I've since updated my forums to 4.2.3, deleted and reinstalled plugins, and so forth, and things were quiet until this morning. I just want to check if the following rapid series of errors (I've gotten over a hundred in an hour) look like hacking to you. Lots of IPs and usernames are attached, though 'JDAntoine' is always the unknown column. Checking in on the username, this is an existing user who was banned some time ago, if that matters.

Database error in vBulletin 4.2.3:

Invalid SQL:

SELECT COUNT(*) AS threads

FROM thread AS thread


WHERE thread.forumid = 2
AND sticky = 0

AND visible = 1
AND thread.postuserid NOT IN (JDAntoine);

MySQL Error : Unknown column 'JDAntoine' in 'where clause'
Error Number : 1054
Request Date : Wednesday, December 21st 2016 @ 11:08:27 AM
Error Date : Wednesday, December 21st 2016 @ 11:08:27 AM
Script : http://REDACTED/forumdisplay.php?2-REDACTED-Discussion
Referrer :
IP Address : 63.239.33.129
Username : MysticTemplar
Classname : vB_Database
MySQL Version :


Database error in vBulletin 4.2.3:

Invalid SQL:

SELECT post.postid, post.attach
FROM post AS post

WHERE post.threadid = 265851
AND post.visible = 1
AND post.userid NOT IN (JDAntoine)

ORDER BY post.dateline
LIMIT 440, 40;

MySQL Error : Unknown column 'JDAntoine' in 'where clause'
Error Number : 1054
Request Date : Wednesday, December 21st 2016 @ 11:08:28 AM
Error Date : Wednesday, December 21st 2016 @ 11:08:28 AM

Thanks for your time, I really appreciate it!