How do I do a virus scan on my computer

I just installed a ClamXav on my computer because I was told I had opened something in my mailbox. It is now showing 14
Filename
Infection Name
Status
/Users/auntiefox/Library/Mail Downloads/Postal.Document 2.exe
BC.Heuristic.Trojan.SusPacked.BF-6.A
Now what do I do with it when I am done?

mende1 wrote:
That's a Windows virus.
Well, it probably is and then again, it might be nothing at all.  The word "Heuristics" is the key that it was identified as being suspicious by a special heuristics scan engine, not by matching it against a specific signature. The scan spotted something and feels you need to be cautions with it.
The ".exe" would normally signal a Windows executable, but it could also be a self-extracting zip file, in which case it can be manually extracted by a Mac.
You are correct about items in Mail Downloads being OK to trash, but attachments are also embedded in the raw e-mail.  Normally the only time they show up in Mail Downloads is if it has been viewed (such as an image) or saved.  In these cases the user will normally see the same infection for both the original e-mail and the attachment.  My guess is that the original e-mail had already been trashed or moved to the junk/spam folder.
From the attachment name, it almost certainly is one of the many Trojan's disguised as a delivery notice that made the rounds during the holidays, so I think all the right decisions were made. Just wanted to clarify a few things in case users jump to the wrong conclusion about the next attachment.

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