It's a response to the faulty DAT release that went out 10 days ago. The later DAT releases have corrected most of the changes but you need MVT to reset some of the (presumably registry) settings.
This is part of McAfee's belated attempt to put things right. It's not a bug, it's not a malware attack. I gather an email has gone out to many users explaining what needs to be done, although I haven't seen it myself. But then, I wasn't affected by 6807, so perhaps I won't get it.
The DAT problem wasn't bad coding, but an unexpected side-effect of tightening certificate security (reading between the lines of some of the business forum posts). I presume they've rolled back to the status quo ante so they can test the changes all over again to work out what went wrong.
I've moved this into the MVT section for now. It was posted to the Consumer section : are the affected machines running McAfee Consumer or Enterprise? The answer's relevant to both, but the Corporate versions have their own section and there are discussions a-plenty about all this over there. I can move the thread if you've got McAfee Enterprise.
Running the Consumer versions.
Then I'll leave it where it is.
You might get some enlightenment from browsing the threads in the Business section - start with
Do you know if McAfee is planning to release an update to correct the issue, or is it best to run MVT on the affected machines to fix it?
Thanks for the help,
DAT releases after 6808 corrected most of the issues; MVT was updated to fix any remaining problems, so you should run MVT. It works for at least 80% of affected PC's but a few people need to uninstall and re-install McAfee.
If you've got 150+ users you may need to find some way of pushing the MVT fix to affected PCs but that's not something I can advise you about. It may be you have to run it yourself on a per-machine basis rather then leaving it to each user to do it themselves, but that's an operational decision. We mostly deal with single standalone systems or small networks in the Consumer sections, this is bigger-scale than we usually see.