XRumer was recently released putting another nail in the CAPTCHA Coffin.
"The decline in CAPTCHA efficacy has been an ongoing
story in 2008, as hackers and malware authors have steadily found ways
to chip away at the protection these security practices were once
thought to offer.
Now, new findings indicate that both Gmail and Windows Live Hotmail
have been compromised again, this time via a more-streamlined attack
process. With two of the largest webmail providers once again
vulnerable, CAPTCHAs clearly aren’t meeting the security needs of
either company, and it may be time to reevaluate the use of them
altogether.
" – arstechnica
There are some details XRumer at aghu.
"XRumer is a Windows program
that posts forum, blog, private message, and guestbook spam with the
aim of boosting search engine rankings. It is able to bypass techniques
commonly used by many websites to deter automated spam, such as account
registration, CAPTCHAs, and e-mail activation before posting, however
the older versions still had trouble with ‘fancier’ CAPTCHA. Not
anymore.
This
time those evil Russian bastards have not only managed to crack Googles
captcha, but they’ve also figure out how to beat those horrible ‘click
on the cutest cat’ style CAPTCHA tests. It’s amazing!" – aghu.st
Read more: http://arstechnica.com/news.ars/post/20081002-right-back-at-ya-captcha-bad-guys-crack-gmail-hotmail.html
Xrumer Features: http://agha.st/2008/10/xrumer-50a—google-captcha-cracked.php