Blonde Rosita Kohzina posted the video a few minutes after the attempted carjacking, in which she said the man had tried to force open the doors to her car at a traffic light.
She said: "I am really seething. And I don't want anybody to tell me I'm making this up and that it never happened."
She said that after fighting off the bag-snatcher and an attacker who tried to grope her breasts, a man tried to carjack her but could not get in - he had rolled on the roof and then had attacked a completely random woman who was walking down the street, shoving her over before running off.
After parking further down the street she decided to vent her rage in an online rant saying: "Listen ladies, I've just recently been forced to make the acquaintance of some of these non-Austrians.
"First of all I've had to defend my handbag and my iPad. Fortunately I managed to defend myself, but I still don't find the whole experience cool.
"And just now, somebody tried to get into my car which fortunately I had locked from the inside.
"He was so annoyed about it that he then trampled on the roof, and it was difficult for me to control myself. Fortunately I managed to keep my common sense, and stayed seated inside the vehicle.
"He however was clearly not content to sit still, and a completely innocent woman who had nothing to do with the incident ended up being flattened. That was just because he was angry that he couldn't get into my vehicle.
"I have to say that was too much - even for me."
She said that as result of seeing the incident and after claiming to have fought off a groper, she had decided to warn other women.
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She said: "Ladies, I would urge everyone to do a self-defence course, there's a lot being offered at the moment. It is not the last-chance saloon anymore, at least not for us women. There are now people like this out there that are stealing handbags and groping us and it's not funny at all, and sadly I am not talking about an isolated case."
She said that she had even noticed that her son and his friends felt forced to accompany their girlfriends when they were travelling at night making sure that they were escorted home safely in order to prevent them getting molested.
She said: "We are simply not safe anymore. I am sure that many of you don't realise you can help yourself, many of you are sitting at home worried about going out or travelling in the car. Some of you probably leave your handbags at home. So once again ladies, do a course to defend yourselves."