pum.disabled.securitycenter alert in MB

NIS 2011 18.1.0.37
XP Pro + SP3 + updates

 

Yesterday (12/1) I ran an NIS full scan on this computer.  Found nothing.

Today (12/2) I ran an NIS quick scan, found nothing.

 

Then I ran a full scan with MalwareBytes 1.50 and it found two registry entries:  pum.disabled.securitycenter.

MB's website doesn't say a whole lot about it.
"First seen 12/1/10"

 

And I just ran a MB quick scan, and their quick scan finds it also.

 

Anyone heard of this?