On the source of the Kehagias-Sfetsos black hole
  By assuming that the Kehagias-Sfetsos black hole is an exact solution of the
standard Einstein equations, we investigate the properties of its source that
generates the curvature. The anisotropic fluid has $p_{r} = - \rho$ as equation
of state and fulfills the WEC and NEC. The gravitational field is repulsive
inside the horizon and attractive outside, becoming of Schwarzschild type at
large distances. The Misner-Sharp energy equals the black hole mass
asymptotically.
