  We construct a model of decaying, TeV-scale scalar dark matter motivated by
data from the PAMELA and Fermi-LAT experiments. By introducing an appropriate
Abelian discrete symmetry and an intermediate scale of vector-like states that
are responsible for generating lepton Yukawa couplings, we show that
Planck-suppressed corrections may lead to decaying dark matter that is
leptophilic and has the desired lifetime. The dark matter candidate decays
primarily to lepton/anti-lepton pairs, and at a subleading rate to final states
with a lepton, anti-lepton and standard model Higgs boson. We show that the
model can reproduce the observed positron flux and positron fraction while
remaining consistent with the bounds on the cosmic ray antiproton flux.
