Yes I think I will check the site out with Zscaler as the Mcommon folder was re-installed at 1156 your time. Could you post the fix log this generates
Warning This fix is only relevant for this system and no other, using on another computer may cause problems
Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot
Run OTL
[*]Under the Custom Scans/Fixes box at the bottom, paste in the following
https://dl.dropbox.com/u/73555776/OTL_Fix.GIF
:OTL
[2013/06/05 11:56:49 | 000,000,000 | ---D | C] -- C:\Documents and Settings\Marwan\Application Data\MCommon
[*]Then click the Run Fix button at the top