Conficker has received it's instructions and is starting to mutate. It is not only going to try to sell you virus removal software. It will OPEN up your computer to other bad things and disable your current anti-virus software.
How do I know if I have it?
Go here to get more info - Conficker Work Group
If you can read the chart you are not infected. If you are infected you need to get off the internet and get help to remove it.