This is a Legitimate Detection:JS/Exploit-Nuclearkit.b - Malware - McAfee Labs Threat Center
I recommend running the Latest Stinger also, you can obtain this Superb Tool and more in the Following Link.
Please read (How to use) : Anti-Spyware/Malware & Hijacker Tools
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Moved this to Malware Discussion> Home User Assistance-By Moderator
Was uncertain as to move to (Virus Scan) or not.