jwgkvsq.vmx virus

I'm not at all familiar with worms or viri, but are you running Windows (because this is a Windows virus)? Here is an article on how to get rid of it (assuming you have Windows):

http://www.techiebubble.com/security/how-to-remove-the-jwgkvsqvmx-worm-virus/

As I said, I'm not at all familiar with this type of thing; from the article I linked to it appears that it usually comes from a USB thumb drive or maybe someone with Windows had it and it was contained within an email they sent to you? Obviously it's more than annoying even though it can't do any harm. And, because of my lack of knowledge, my only suggestion would be a complete erase and install. I wouldn't use Migration Assistant either in case that file was backed up along with the regular backups, so I'd just copy over my most important files manually and only older emails (with a date before the worm showed up). Hopefully someone will be able to chime in with a less radical solution. If you're still under warranty, you could call Apple to see if they have a better idea.

/user/.Trash/jwgkvsq.vmx. - followed by a steam of numbers (presumably the amount of copies) Worm .Kido-99 FOUND

Kido, another name for Conficker, is a worm that affects Windows computers only. You cannot be infected unless you are running Windows, so the only reason to bother finding it is to ensure you don't accidentally pass it on to a Windows user.

Is ClamXav scanning any hard drives that are also used on Windows machines, Windows network shares or the like? Do you have any files copied from Windows machines? Isn't ClamXav telling you where the infected files are found?

Bottom line, you can probably remove ClamXav... see my [Mac Virus guide|http://www.reedcorner.net/thomas/guides/macvirus> for information about the threats that you need to worry about on a Mac, then make your choice about whether you want to keep it or not.