It seems to be a 'brazilian' worm, as when I search for solutions I only find pages in Portuguese.
This appears to be one solution, though it is on portuguese:
http://www.virushelp.org/Sections-article96-p1.html
Here's a word-lingo translation:
http://www2.worldlingo.com/SG57TOc3OQELz0XG7snuY3lxRzjIKdYC3/translate