A sophisticated analysis of EGRET data has found evidence for gamma-ray emission from the galactic halo .
I entertain the possibility that part of the EGRET signal is due to WIMP annihilations in the halo .
I show that a viable candidate with the required properties exists in a model with an extended Higgs sector .
The candidate has a mass of 2–4 GeV , a relic density \Omega \sim 0.1 ( for a Hubble constant of 60 km/s/Mpc ) , and a scattering cross section off nucleons in the range 10 ^ { -5 } – 10 ^ { -1 } pb .
The model satisfies present observational and experimental constraints , and makes strict predictions on the gamma-ray spectrum of the halo emission .