Recursos para evadir CAPTCHAs

Quizás seas un malévolo spammer y quieras evitar esos molestos CAPTCHAs para que tu bot pueda automatizar cierto proceso, o quizás sólo por placer.

A continuación os dejo una lista de recursos cortesía de Karl Groves con distintas técnicas y software para evadir CAPTCHAs. Aviso que algunos de los métodos descritos ya no funcionan, pero tenéis delante un excelente recopilatorio (en inglés) que demuestra la continua batalla contra la Prueba de Turing pública y automática para diferenciar máquinas y humanos (sí, lo he dicho):

• Breaking a Visual CAPTCHA
• Breaking CAPTCHA without OCR
• Breaking the Paypal.com CAPTCHA
• Breaking e-banking CAPTCHAS
• Breaking the ASP Security Image Generator
• PWNtcha – CAPTCHA Decoder
• aiCaptcha – Using AI to beat CAPTCHA and post comment spam
• Arstechnica – Gone in 60 seconds: Spambot cracks Live Hotmail CAPTCHA
• Slashdot – Yahoo CAPTCHA Hacked
• Slashdot Gmail CAPTCHA Cracked
• Slashdot – Google’s Audio CAPTCHA Falls to Automated Attack
• Computerworld – How CAPTCHA got trashed
• How Spam is Improving AI discusses that even photo-based CAPTCHA is being cracked
• Spammers’ bot cracks Microsoft’s CAPTCHA: (possibly reporting duplicate info from #8)
• NY Times: Spammers Pay Others to Answer Security Tests
• BeatCAPTCHAS.com – a service which solves CAPTCHAs for you at a rate of $8.00 per 1000 CAPTCHAs solved
• CAPTCHA Cracker site which sells a program to beat CAPTCHAs
• CAPTCHA Sniper program to solve CAPTCHAs
• Decaptcha beats CAPTCHAs
• Death By CAPTCHA (bypass service, has API for use. $1.39 for 1000 solved CAPTCHAs
• Stanford researchers crack CAPTCHA codes
• Decaptcha: Breaking 75% of eBay audio CAPTCHAs
• Breaking Weak CAPTCHA in 26 Lines of Code
• Machine Learning Attacks Against the Asirra CAPTCHA
• PC Mag: Deep-Sixing CAPTCHA
• Breaking CAPTCHA with automated humans
• Breaking Audio CAPTCHAs [PDF]
• Computerworld.com: Repetition Breaks Google Audio CAPTCHA

Fuente: Hackplayers

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