This is a virus.
There are several variations circulating.
I had the list of the files they create, but I can not find it.
(I wrote it down on paper instead of filing it on the PC hard disk. What a mistake!)
Your antivirus software provider should be of help.
If not, the files have some very strange extensions, and are hidden.
One of them is usually in the root directory, start there.
Then right click the Icon.
Select, properties.
Copy info, and then search the Registry.
Delete the entry(ies)for the virus.
There usually will be a total of three or four virus files, including the one in the root.
Regards, Chris