I made a quick search on that virus, found this:
http://www3.ca.com/securityadvisor/v....aspx?id=43004

Since it only affects HTML files it must be one of those virus that can come embedded with the html pages that MJ12 crawls, but we know that no code is executed, so it can't harm you.
And you get rid of it as soon as you upload the barrel back to HQ. Or even earlier maybe, as the content analyzing process should strip out the useful text from all the rest of the garbage and HTML that compose the page.