File folder structure

[kpinks]

Hello, I have the Samsung Galaxy S3 phone which I really like. I am trying to understand the file structure under "My Files". I notice there are a few folders which I do not know what they are for.
"Wandouija" and "wdh_update"? Any help would be greatly appreciated.
Thanks

 

[chanchan05]

They're probably part of some app you have installed.

 

[Hadron]

For sure. Wandouija is a Chinese app distribution system.