During full system scan with NIS2010 on August 11th, it discovered and quarantined email.class (Trojan.gen) found at c:\users\...\appdata\locallow]sun\java\deployment\cache\6.0\9\58097cc9-64f00af3.
The NIS2010 file insight details are Startup Item:No and Launched:No
Since discovered, I have run Malwarebytes and Superantispyware in safe mode and nothing was found.Subsequent scans with NIS2010 are okay also.
I confirmed that I was already using Java version 6 update 20, and subsequently updated to 21 and also deleted all temp files for Java
Should I still be concerned or consider problem resolved ?