Quote fromI unzipped it into a sandbox, avast doesn't showed anything after the scan, it contains a world folder, with usual chunk folders but some strange text/nonextension files:
Finished downloading mine,
Scanned with avast.
Avast crashed near the end when it was scanning those files, so i dont know, Dont wanna risk putting it into my minecraft saves folder. Might steal mah account D:
Confirmed that he's not the original creator though.
Heres a picture of files contained I dont like the way this is looking.