google.class file detected by Norton as High risk - Is it high risk ?

Is this high risk ?  Was my computer compromised ?  How did it get on my computer.  Note Norton detected it and removed it ?


c:\users\user\appdata\locallow\sun\java\deployment\cache\6.0\37\330b3de5-50a6bf62
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On computer as of
5/29/2010 at 1:17:46 AM
Last Used:
6/12/2010 at 5:16:56 PM
Startup Item: No
Launched: No
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Very Few Users
Fewer than 10 users in the Norton Community have used this file.
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High
This file risk is high.
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Threat Details
Programs that infect other programs, files, or areas of a computer by inserting themselves or attaching themselves to that medium.
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Origin

Downloaded from  Not Available
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URL Not Available
UNTESTED

Source
330b3de5-50a6bf62
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File Actions
google.class
[Contained in] c:\users\user\appdata\locallow\sun\java\deployment\cache\6.0\37\330b3de5-50a6bf62
Deleted
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File Thumbprint:
a7f67d2a301d4198f0ec83584f7e76794293de7fb68565ad73849e66e672f685
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