  The recent study on the the 6-year up-going muon neutrinos by the IceCube
Collaboration support the hypothesis of a two-component scenario explaining the
diffuse TeV-PeV neutrino flux. Once a hard astrophysical power-law is
considered, an excess in the IceCube data is shown in the energy range 10-100
TeV (low-energy excess}). By means of a statistical analysis on the neutrino
energy spectrum and on the angular distribution of neutrino arrival directions,
we characterize a two-component neutrino flux where decaying/annihilating Dark
Matter particles provide a contribution to the IceCube observations.
