Spam from personal email account-- "aebcc.com"

[Lissy]

I've got a friend whose email account has started sending spam
messages from aebcc.com. I've received two of them so far. Both
different messages actually.

Does anyone have any idea how to get rid of this? I tried a google
search for aebcc.com. It brought back on interesting link for windows
live help-- but there wasn't any help, just people with the same issue
(link: http://windowslivehelp.com/community/t/30150.aspx). Looks like
it happened end of last year also (http://www.avforums.com/forums/
operating-systems-software/960753-my-first-virus.html). But still no
answers on how to stop it/get rid of it.

Any ideas? He's asked me, and I'm asking you... Let me know what you
find out... Thanks!!