A maniac is still on the loose after shoving a 58-year-old straphanger onto Brooklyn train tracks in a random and terrifying attack last month, police said.

The unsuspecting victim was waiting for a Manhattan-bound C train when a deranged woman crept up from behind and pushed her, sending her flying onto the tracks at the Lafayette Avenue station in Fort Greene on Jan. 8 around 10 p.m, according to officials.

A group of good Samaritans rescued the woman — who is homeless, according to sources — lifting her back onto the platform before a train rumbled into the station, police said.

She was taken by EMTs to One Brooklyn Health-Brookdale Hospital Medical Center with minor injuries.