Well new to me anyway, this ones from China and compared with the usual favourites avast! and AVG it's a walloping great 54.1Mb download and doesn't seem to offer spyware coverage, though the phrase "other malicious programs" is a bit ambiguous and may cover it. Apart from that it appears fully featured and gets 4.5/5 stars at Snapfiles. Could be worth a look if you want an alternative.
avast free download .exe is 25.69Mb and AVG is 46.13Mb. Both now come with spy/malware coverage, so the Rising download is a bit top heavy. I'm currently trying it on an ancient W98 machine, but beyond an initial impression that it showed a few false positives and was slow, don't have enough time trialling it to make any definitive comments.
Well after a few weeks testing it out, I quite like it:- plenty of features, no nag screens and low on system resources. Only drawbacks are that the scan speed is a bit slow and I don't think the default settings are optimal, but it can be suitably tweaked once you find your way around the control menu, something which is well worth doing.