@UGBrazil has been defacing websites all weekend, and posting their loots on Twitter. They have now released a complete list of the sites they have compromised via Pastebin.
No country/origination was targeted, it looks to be random targets. But Some of the sites that have been breached seem to be repair sites for htc, ipad, samsung and other electronics.
Most of the defaces are not main page defacements with only a few being so. The hacks have left the sites defaced with a Nyan Cat style background and a few links to the UGBrazil member twitter accounts.