  We propose a dark matter explanation to simultaneously account for the excess
of antiproton-to-proton and positron power spectra observed in the AMS-02
experiment while having the right dark matter relic abundance and satisfying
the current direct search bounds. We extend the Higgs triplet model with a
hidden gauge symmetry of $SU(2)_X$ that is broken to $Z_3$ by a quadruplet
scalar field, rendering the associated gauge bosons stable weakly-interacting
massive particle dark matter candidates. By coupling the complex Higgs triplet
and the $SU(2)_X$ quadruplet, the dark matter candidates can annihilate into
triplet Higgs bosons each of which in turn decays into lepton or gauge boson
final states. Such a mechanism gives rise to correct excess of positrons and
antiprotons with an appropriate choice of the triplet vacuum expectation value.
Besides, the model provides a link between neutrino mass and dark matter
phenomenology.
