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neuroradiology/InsideReCaptcha

View on GitHub ↗ ★ 1,050 Python

Reverse-engineering the new “captchaless” ReCaptcha system...

9 mentions on Hacker News by 8 people: 2 stories, 7 comments · first 2014-12-24 · latest 2025-04-21

Mentions per year 9 mentions · busiest year 2019 (4)
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  1. …since forever for recaptcha. And, to be fair, it seems to be fairly effectively for bot detection. https://github.com/neuroradiology/InsideReCaptcha > bots seem to be going a very different route If the "very different route" means running…
    comment by rfoo · 2025-04-21 · in Reverse engineering the obfuscated TikTok VM
  2. …would massively cut down on abuse.) [1] https://vmpsoft.com/ [2] https://jscrambler.com/ [3] https://github.com/neuroradiology/InsideReCaptcha [4] https://www.zenrows.com/blog/bypass-cloudflare#_qEu5MvVdnILJ...
    comment by supriyo-biswas · 2025-04-21 · in Reverse engineering the obfuscated TikTok VM
  3. …for automated captchas, do push the boundaries of whatever JS engine they're executed inside. See https://github.com/neuroradiology/InsideReCaptcha#the-analys... and note that this analysis is 8 years old. While there's minimal risk if…
    comment by btown · 2022-09-10 · in YouTube-dl has an interpreter for a subset of JavaScript in 870 lines of Python
  4. …if it's the same team that did ReCaptcha 2.0, this is a team that pulls out all the stops. Per https://github.com/neuroradiology/InsideReCaptcha ... they implemented a freaking VM in Javascript to obfuscate the code that combines various…
    comment by btown · 2019-06-27 · in Google’s new reCAPTCHA has a dark side
  5. The answer is not just fluff. It for example links to https://github.com/neuroradiology/InsideReCaptcha where you can read more.
    comment by KajMagnus · 2019-02-14 · in Why can’t a bot tick the 'I'm not a robot' box?
  6. One of the more interesting references linked here was https://github.com/neuroradiology/InsideReCaptcha — apparently the reCAPTCHA JavaScript snippet uses an encrypted bytecode format running on a custom-built VM, which one intrepid…
    comment by dylanpyle · 2016-04-09 · in I’m not a human: Breaking the Google reCAPTCHA [pdf]
  7. Actual info about the new ReCAPTCHA at https://github.com/neuroradiology/InsideReCaptcha (original discussion: https://news.ycombinator.com/item?id=8722846 )
    comment by vld · 2014-12-24 · in Sorry Google, No CAPTCHA ReCAPTCHA Doesn’t Stop Bots