Yarra Ranges Crime Investigation Unit detectives are appealing for public assistance following a burglary in Mooroolbark on Friday 12 July.
Police have been told an unknown man forced entry to the rear door of a house on Kalimna Street just before midday.
It is believed the offender, armed with a jemmy bar, knocked over a security camera and ran from the house empty-handed.
He was wearing a surgical mask and a black hooded jumper at the time of the burglary.
No-one was home at the time.
Detectives have released images of a man that may be able to assist with their enquiries.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au