Hell, I noticed it almost a month after the Store Debuted.
As I said in the AV is Dead Article, I tell our customers "Don't download or install anything" and I mean it. The windows store is like the wild west. They do no QA on the content and refuse to remove obvious scam acts. Hell, MS in many cases doesn't even host the files, they post a button that says "Get App From Publisher" that leads to a third party site where you can "download" the file. That's just stupid.
The other thing that really needs to get drilled home from this is that Open Source Software is getting totally Hosed by scammers forking Code or distributing installers and the community needs to find a solution that is acceptable with OSS Practices. 77zip (not 7zip. 7zip is the legitimate one. 77zip is the adware infested one.) is an excellent example of what happens when OSS and Scams collide. VLC media player has been ripped off so much it's downright scary to do searches for it. Libreoffice and Openoffice (as well as VLC, 7zip, ETC) are constantly installer repackaged to install Adware garbage. Hell, even SourceForge is doing it to Filezilla and other OSS Apps hosted on their site. There's a ton of malware infested fake chrome's out there. Hell, It's getting to the point where I'm seeing chromium installed on PC's and all it does is download and execute rogue apps in the background with no user intervention whatsoever. They're just using it as a specifically coded malware platform which can be installed even on guest level accounts.