Question : Event ID: 33002 Access blocked because signature is not valid

This morning during backup, these errors started popping up:

Event Type:      Error
Event Source:      MSSQL$MICROSOFT##SSEE
Event Category:      (2)
Event ID:      33002
Date:            10/12/2009
Time:            8:39:37 AM
User:            NT AUTHORITY\NETWORK SERVICE
Computer:      SBSServer
Description:
Access to module dbo.spConfiguration is blocked because the signature is not valid.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: ea 80 00 00 10 00 00 00   ê€......
0008: 17 00 00 00 42 00 41 00   ....B.A.
0010: 52 00 54 00 45 00 52 00   R.T.E.R.
0018: 5c 00 4d 00 49 00 43 00   \.M.I.C.
0020: 52 00 4f 00 53 00 4f 00   R.O.S.O.
0028: 46 00 54 00 23 00 23 00   F.T.#.#.
0030: 53 00 53 00 45 00 45 00   S.S.E.E.
0038: 00 00 06 00 00 00 53 00   ......S.
0040: 55 00 53 00 44 00 42 00   U.S.D.B.
0048: 00 00

Event Type:      Error
Event Source:      MSSQL$MICROSOFT##SSEE
Event Category:      (2)
Event ID:      33002
Date:            10/12/2009
Time:            8:23:00 AM
User:            NT AUTHORITY\SYSTEM
Computer:      SBSServer
Description:
Access to module dbo.spReturnStateMachineTransitionEventLogEntriesFromError is blocked because the signature is not valid.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: ea 80 00 00 10 00 00 00   ê€......
0008: 17 00 00 00 42 00 41 00   ....B.A.
0010: 52 00 54 00 45 00 52 00   R.T.E.R.
0018: 5c 00 4d 00 49 00 43 00   \.M.I.C.
0020: 52 00 4f 00 53 00 4f 00   R.O.S.O.
0028: 46 00 54 00 23 00 23 00   F.T.#.#.
0030: 53 00 53 00 45 00 45 00   S.S.E.E.
0038: 00 00 06 00 00 00 53 00   ......S.
0040: 55 00 53 00 44 00 42 00   U.S.D.B.
0048: 00 00                     ..      
     
The module varies, but seems to be related to error reporting.  Error is showing up continually since it started about 1am.  I also saw this in the the System Log about 3:30am

Event Type:      Warning
Event Source:      W3SVC
Event Category:      None
Event ID:      1011
Date:            10/12/2009
Time:            3:28:07 AM
User:            N/A
Computer:      SBSServer
Description:
A process serving application pool 'WsusPool' suffered a fatal communication error with the World Wide Web Publishing Service. The process id was '13344'. The data field contains the error number.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 6d 00 07 80               m..€    

Answer : Event ID: 33002 Access blocked because signature is not valid

1. Select Start>Run & type in Services.msc
2. Scroll Down to Windows Internal Database (Microsoft ##SSEE)
3. Right Click on it & select Restart (or Start if it isn't running)

This fixed that error, but I also had a 2nd related error with WSUS (Windows Update Services) not working properly.  I fixed that by Restarting Update Services using the same method above.