This is a new feature, introduced in NTFS for Mac 15.
Menu Bar App automatically launches, when you install NTFS for Mac 15 and stays active unless you turn it off in NTFS for Mac 15 preferences.
Let’s take a closer look at NTFS for Mac 15 Menu Bar App:
General, HowTos, HowTos: Mac OS X, Know how: Mac OS X, KnowHow, NTFS for Mac OS X, Products for Mac OS X
Tags: bar, close, close bar, close menu, close menu bar, menu, menu bar ntfs 15, ntfs15