This is an old virus must have been revamped.
Old thread on it
Try running a scan in safe mode and from what I read best to delete all restore points and disable autorun as they are infected or be used by the virus. Usually restoring to a point before the virus is a good 1st try but several posts online imply not to.
and run Getsusp
You can also find support for it in that group and provide feedback. The actual download is available
Please read this McAfee article: Required Reading - Home User Assistance, Malware Troubleshooting
Add your email address to the preferences Your will be notified of any fixes for any suspect files that are sent automatically to Mcafee
If you can isolate the malware that isn't being detected you can try submitting it to McAfee Laboratories.
There are some other tools online but as Mcafee did not detect it it might be a new detection