Conficker Checker is a very simple Java application I wrote that tests whether or not you have the Conficker virus. Ironically I wrote this on a Linux machine.
It does not help you get rid of the virus. It simply tells you yes, or no. This was one of the first applications I ever wrote.
So, get it here and see if you're infected or not. Just save it and double click like any other file.
Note: file download misplaced.