uniuploader.exe, and it's process, UniUploader, are not spyware or viruses and are safe to have on your PC.

Malware and viruses sometimes use the same filename as important files, so it is a good idea to scan your PC to be sure.

The best way to avoid problems with malware and other types of malware is to scan your PC for free and get rid of all the unimportant files right now.