This discussion has (belatedly) been moved into Top Threats. All useful solutions to removing this malware should be kept in the same discussion area for reference.
Also, see the blog post in this section with links to Microsoft for the Malware Protection Center
Yesterday my system was attacked by this virus. by using malware i was able to remove this virus, but now most of my files (word, jpeg, excel etc) on my computer are prefixed with Locked and some wired extension (i.e locked-New master timesheet.xlsx.cyan). i cant open these files, is there any way i can repair these files ?