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ccevtmgr.exe

What Is It?
Norton Security - ccEvtMgr.exe

What Does ccevtmgr.exe Do?
This is one of MANY processes that are used by Norton Security (AV + Net Security) If its under the appropriate directory you'll have nothing to worry about. If you're experiencing slowdowns you'll want to upgrade your hard drive and/or your RAM. Norton is a resource hog.
This particular process is the event log manager which monitors the virus scanning process and will trigger the alert process as needed.

Virus Precautions:
The normal location of ccevtmgr.exe is: C:PROGRAM FILESCOMMON FILESSYMANTEC SHAREDccevtmgr.exe