If So, make sure you have legally purchased your software as you more than likely will have this virus now.
OSX.RSPlug.A
Head directly to ClamXAV, Intego and look for a file called DNSChangerRemovalTool.dmg in google.
Also check out:
http://www.boygeniusreport.com/2009/...as-20000-macs/
If you would like to know more and you are a mac user, PM me