Board Thread:Support Requests - Community Management/@comment-5200993-20140218204704/@comment-1038387-20140218205649

In any case, it's not something that can be solved by Wikia. Make sure antivirus software is up to date, run a full check, clean it up and then change the password to something completely different.

And yeah, 4. happens a lot. Not as often as "it was my brother", but still, quite often.