I am an Australian travelling on an Australian passport with 9 years to expiry - do I need any visas when spending 10 days in Penang?
This is from the web site of the High Commission of Malaysia:
"Australian passport holders do not need a visa to enter Malaysia for a visit of up to three months provided their passports are valid for at least six months on arrival and they have a return air ticket or onward ticket to another international destination. A single entry air ticket is not accepted without a confirmed date and exit from Malaysia."
So no, it looks like you don't. almost 7 years ago