Android root sandbox?

On Windows I would use a sandbox to easily see file-changes made by shady programs to see how it would affect my system. What are easy methods (except decompiling and looking at the actual program code) for that on android? Background: I ran the app 'stubborn trojan remover' showing me I'm infected with ghost push, a trojan for android. I looked up more information, but it seems there is very little. 'Stubborn trojan remover' gives also very little info, it doesn't even say where it removes the trojan from or where it found it.