I am in the process of cleaning up a PC that was infected by the fake antivirus program "Peak Protection 2010". I'm pretty sure I have removed all the associated files and registry entries, however I am getting a "Immunization Incomplete" message related to Windows Global (Hosts) (see screen shot attached). I've tried the undo & reimmunize as well as uninstell reinstall Spybot S&D.

I'm running Spybot S&D ver. 1.6.2.46 with a detection update dated 9/22/2010. OS is Win XP Pro SP3 w/ IE8. In addition to Spybot S&D, Mcafee Total Protection is currently installed. However, I have the same issue without Mcafee installed on the machine.

Any suggestions on what might be preventing a full immunization?

Thanks for your help.