Trojan Detected ... Removal advice?

This evening, I put a disk into my computer to load some things… I got a notification that a Trojan was detected and was asked to restart the computer.

Note: I run Avast Free, but McCaffe is loaded on the computer (inactive).

I restarted and immediately ran a scan… both a quick scan and a full scan.

I got a message that a “JS:ScriptIP-inf[Trj]” was present.

Avast moved it to the Virus Chest, but what do I do now??

I am handy at computer work, but not so much on the technical end.

Please attach your logs. (AdwCleaner, MBAM, OTL and aswMBR…!!)
Instructions: http://forum.avast.com/index.php?topic=53253.0

Note: I run Avast Free, but McCaffe is loaded on the computer (inactive).
McAfee must be uninstalled

General: Uninstalling a third-party antivirus software. http://www.avast.com/faq.php?article=AVKB11