  The recent study on the the 6-year up-going muon neutrinos by the IceCube
Collaboration and the multi-messenger analyses support the hypothesis of a
two-component scenario explaining the diffuse TeV-PeV neutrino flux. Depending
on the steepness of the astrophysical power-law, an excess in the IceCube data
is shown in the energy range 10-100 TeV (low-energy excess) or at PeV
(high-energy excess). In both cases, we characterize a two-component neutrino
flux where decaying Dark Matter particles provide a contribution to the IceCube
observations.
