Here's ways to prevent future attacks if you ever plan on coming back (i've had it happen to me twice personally)
**stolen from WoW Forums**
1. Change your password now from another computer. Account Management Page Link.
https://www.worldofwarcraft.com/login/login...e-password.html
2. Scan hard drive with your Anti-virus software.
3. AVG Free Anti-virus http://free.grisoft.com/doc/2/
4. Trend Micro HouseCall http://housecall.trendmicro.com/ (free service scan)
5. Link Scanner http://linkscanner.explabs.com/linkscanner/default.asp (this will save you the v-scan sometimes.)
6. http://www.sarc.com Symantec Antivirus Research Center. Education. Education. Education. http://www.symantec.com/norton/security_re...lorer/index.jsp
7. Keyscramblers http://www.qfxsoftware.com (free and very powerful)
8. Most virus attack your system through security whole in the Operating System, so update on a regular basis.
Microsoft Windows Update
http://www.update.microsoft.com/windowsupd...t.aspx?ln=en-us
Apple Update
http://www.apple.com/downloads/
**Also if you don't have it already get a Blizzard Authenticator, it's $6.50 but well worth the price. (haven't been hacked since or worry about it)
http://www.blizzard.com/store/details.xml?id=1100000182