Need help identifying hack.

I get this error:

PHP Code:

Invalid SQL: UPDATE thread SET lastpost=1061497481,replycount=0,postusername='caron4butler', postuserid='10', lastposter='caron4butler',attach= WHERE threadid=1149 

Can't remember which one it was...

something to do with the addition of "postusername".

[lifesourcerec]

By the way, the file modified is admin/misc.php

[filburt1]

Please read the sticky thread: https://vborg.vbsupport.ru/showthrea...threadid=54118

[lifesourcerec]

Trying to figure out which hack it came from.