There's no known tool to fix this infection at this time.
We can remove the infection but not the encryption.
Once encrypted you will not be able to access those encrypted files unless you pay a ransom and that doesn't always work.
Please be sure to backup your important files / data.
Cryptolocker Ransomware: What You Need To Know
http://blog.malwareb...u-need-to-know/
I would also suggest you add this tool Web of Trust for safer surfing.
http://www.mywot.com/en/download