From TechSono Engineering:
Download files from newsgroups, which is much faster than any file-sharing program. The program can be used with two connections when it is un-registered, and unlimited connections after registration.
What's new in this version:
"Force File Decode" command added to "Commands" menu.
Techsono has provided absolutely superior technical and customer service. They have been extremely fair to deal with, and I would be completely comfortable using their products again. SuperNZB saves me a ton of time and works with minimum effort from the user.
You realize the infection came from the (likely pirated) content you downloaded, not the utility (supernzb) that you used to download it... right? If not, then you know zero about computers, and were probably infected anyway...