An illegal immigrant in Australia (overstayed a visa) getting married and getting a legal status without leaving the country?

Hello, I'm in Australia for awhile now and I came on a valid visa and overstayed, so that makes me an illegal immigrant. I met someone and I'd like to marry her, will that grant me a residency without a problem? since I entered legally with a visa at the first place? I know that in the US, if someone overstays his visa he can still get a Green Card there if he gets married. However, he will have to leave the country and re apply if he entered illegally through the Mexican border. If I leave Australia I'll get a 10 years ban and I'll will have to apply for an "amnesty" to come back and live with my future wife on a resident status? Or I could just adjust my status from Australia after getting married without having to leave the country?