
Berserk Bear

Berserk Bear (aka Crouching Yeti, Dragonfly 2.0, DYMALLOY, Energetic Bear, Havex, IRON LIBERTY, or TeamSpy) is a Russian cyber espionage group, sometimes known as an advanced persistent threat.
Activities.
Berserk Bear specializes in compromising utilities infrastructure, especially that belonging to companies responsible for water or energy distribution. It has performed these activities in at least Germany and the U.S.
Berserk Bear has also targeted many state, local, and tribal government and aviation networks in the U.S., and as of October 1, 2020, had exfiltrated data from at least two victim servers. In particular, Berserk Bear is believed to have infiltrated the computer network of the city of Austin, Texas, during 2020.