According to Symantec Security Check:

Virus status: Infected!
…
Your computer is infected with at least one known virus or trojan horse.
…
….\Application Data\Sun\Java\Deployment\cache\javapi\v1.0\jar\javainstaller.jar-3c936701-7f0351a3.zip is infected with Download.Adware

Is this actually something I should be concerned about, or is Symantec just trying to "stick it" to Sun?

Thanks.