Just to let you know this appears to have been an automated attack on a flaw in the bulletin software which allowed use of the default background template to redirect to the hacker’s webpage.
The logs show no retrieval of user data so your emails/pws etc… should be safe.
How did you finish the battle?
If he can’t hack you again you get a ‘minor victory’
If you have disciplined him to the point where he can no longer make ‘little hackers’ you get a ‘major victory’, and a matching set of steak knives…