Moorabool Crime Investigation Unit detectives are appealing for public assistance following a carjacking in Maddingley last month.
It is understood the victim was standing next to his vehicle on Griffith Street when an unknown man ran towards him and assaulted him from behind about 10.15pm on 19 January.
The man then took off in the victim's vehicle, which had the engine running at the time.
The victim, a 24-year-old Bacchus Marsh man, was not injured during the incident.
The vehicle, a white Toyota Hilux bearing registration PROCTR, was recovered by police on 20 January abandoned on Bald Hill, Darley.
Detectives have released vision of the incident in the hope someone who has information will come forward.
The offender is described having a medium build wearing dark pants and a dark hooded jumper.
Anyone with information or who witnessed the incident is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au
