"Are you racking your brains on your school work? Do you worry about spending $3000 retaking tuition on the failing subject? Leave your worries to MyMaster and make your study easier!," one flyer posted on a toilet door at the University of Technology, Sydney, read.

This pitch has seen Ms Dou's MyMaster company turn over at least $160,000 during 2014 and return more than 900 fraudulent assignments to students prepared to hand over up to $1000 for the work.

Her business ventures complement her expensive tastes, including designer handbags, which she has sold online for more than $3000.

Born in Chongqing in south-western China, Ms Dou attended high school at Pittwater House, a private school on Sydney's affluent northern beaches.

Since graduating from Macquarie University, Ms Dou has established herself as the director of two companies: MyMaster and coaching college Yingcredible Tutoring.