Indeed.
I had a machine whose log did that, so I uninstalled Microsoft
Antispyware. I later reinstalled it, and it went for weeks with no issue,
so I stopped worrying about it. However, last weekend the symptom came
back (this was a production server.) Fortunately, both occurrences
happened on weekends, and it was easy to diagnose the problem remotely and
correct it.
I've uninstalled the product from that server--not worth the risk, and not
providing much value on a server not used for surfing anyway.