Occupy Underground

However, being paranoid and not educating and protecting yourself from your fears is plain silly.

1 - Get some anti-virus software. There are many fine ones to choose from, I like Avast.

2 - Get a good mal-ware scanner. Again, there are many fine ones available, I like Malwarebytes.

It is important to keep them both updated, updates happen all the time and the software will prompt you to update it. With these basic safety precautions you will be protected and know if your computer tries to send or receive unknown data.

or... You could simply remain afraid to download anything because it might be someone spying on you.