I bought a used Note 3 running 4.3 / MJE. It has never been rooted as far as I can tell. It has a clean ESN according to Swappa. I never activated it, never connected it to a Wifi network, and never put my sim in it. It was factory reset and the first thing I wanted to do was root it.
So, I downloaded Kingo 1.1.6 from the first link that Google provided (I don't know if I can reference the site) and I ran the program. Root was successful! I then installed SafeStrap, and finally flashed SuperSU from recovery. Everything looked great, but...next to SuperSU in my app drawer was an app that I never saw before. It was a green icon with what looked like two white letter P's in it. Stupidly, I clicked on the app and it opened some sort of Chinese thing. I immediately backed out of the app and uninstalled it. I then factory reset the device. Root and recovery are maintained. And now there is no sign of the mysterious app. But I'm still freaked out about it. Was it some Chinese spyware? Keylogger? Or something more innocent? Do you think it's completely gone or is it possible that it has hidden files somewhere on the device?
I've uninstalled Kingo from my PC and ran several scans of the computer which have turned up nothing unusual. But I still haven't connected the phone to any Wifi or cell networks nor have I entered any personal information on the device. I'm itching to use the device, but I'm nervous about any malware on it.
So, does anyone have any thoughts on the safety of the phone?