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# unCaptcha
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unCaptcha is an automated system that can solve reCaptcha's most difficult auditory challenges with high success rate.
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[Website](http://uncaptcha.cs.umd.edu/) | [GitHub](https://github.com/ecthros/uncaptcha2) | [Paper](http://uncaptcha.cs.umd.edu/papers/uncaptcha_woot17.pdf)
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## Introduction
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unCaptcha combines free, public, online speech-to-text engines with a novel phonetic mapping technique, demonstrating that it requires minimal resources to mount a large-scale successful attack on the reCaptcha system.
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Since reCaptcha was updated to counter the use of Selenium, a browser automation engine, unCaptcha2 uses [PyAutoGUI](https://pyautogui.readthedocs.io/) to move to certain pixels on the screen and move around the page like a human.
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Briefly, unCaptcha works in the following steps:
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1. Navigate to Google's reCaptcha Demo site
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2. Navigate to audio challenge for reCaptcha
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3. Download audio challenge
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4. Submit audio challenge to speech-to-text
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5. Parse response and type answer
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6. Press submit and check if successful
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## Installation
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Start by cloning the repository:
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```sh
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$ git clone git@github.com:ecthros/uncaptcha2.git
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```
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Since unCaptcha2 has to go to specific coordinates on the screen, you'll need to update the coordinates at the top of `run.py` based on your setup. On Linux, you can use the following command to find the coordinates of your mouse:
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```sh
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$ xdotool getmouselocation --shell
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```
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Next you'll need to configure credentials for whichever speech-to-text API you choose. Google's, Microsoft's, and IBM's speech-to-text systems are already included in `queryAPI.py` (set the username and password as required).
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For Google's API, you'll have to set the `GOOGLE_APPLICATION_CREDENTIALS` environment variable to the name of a file containing your Google application credentials.
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Finally, install the dependencies:
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```sh
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$ pip install -r dependencies.txt
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``` |
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\ No newline at end of file |
