[Two-Shoes]

Where do I go/what do I search for to see if my pc has the trojan? Can’t I just look for a certain file rather than downloading a scanner?

Do a Google/Yahoo/Live search on "Win32/Alureon" and read the stuff available. For example, here's what one security vendor has to say:
http://www.ca.com/us/securityadvisor/virusinfo/virus.aspx?ID=50214

Also, I'd recommend using Malwarebytes' Anti-Malware. The personal version is free.

BUT DON'T JUST TAKE MY WORD and blithely follow my advice. Please research this yourself. For all you know, I could be someone trying to take advantage of you.

I specifically didn't make the URL to the CA website above a hyperlink so you'd have an opportunity NOT to click a link, but instead would have to copy and paste the URL into your browser. It's not a very good idea to be in the habit of clicking links served up by strangers.

Hope this helps.

[chilltherats]

Yes, it helps. Thank you very much. :)