Well, I'm not well versed with these kind of things. I'm just an average PC user, so I can't answer your question.
However, if you would like, you can use the tool that Sophos released to the public that can protect your PC from being exploited. Or at least it claims to do so.
Here's the link: http://www.sophos.com/security/topic/shortcut.html
Or you can search 'Sophos lnk tool' on Google (that's what I did) if you'd rather not use my url.