temp:winupd.exe file high cpu usage. HELP!!

I have been trying to get this resolved. I keep getting the high cpu usage. This file says it is located here. c:\users\denise\appdata\local\temp:winupd.exe.

 

When u try to locate the file, it is not there. Even looking for hidden and system files turn up no results.

This is getting real frustrating as I also am getting a Malicious pop up "Web Attack: Malicious Toolkit Website 9" on start up  as a result from thiis file.

 

 

Full Path: c:\users\denise\appdata\local\temp:winupd.exe
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Signature:
Not Available
Identified:
12/29/2011 at 2:17:51 PM
Last Used:
1/14/2012 at 5:06:53 PM
Start-up Item:
Yes
Version Number:
Not Available
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Many Users
Thousands of users in the Norton Community have used this file.
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Very New
This file was released less than 1 week  ago.
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Good
Norton has given this file a favorable rating.
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Origin

Source File:
temp:winupd.exe
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Performance Alert
Time:
 1/14/2012 5:06:48 PM

Process ID 4412
CPU  100% of at least one CPU.
Memory  Normal
Handles Count  Normal
Disk Read Activity  Normal
Disk Write Activity  Normal
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File Thumbprint - SHA:
0000000000000000000000000000000000000000000000000000000000000000
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File Thumbprint - MD5:
00000000000000000000000000000000
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