The protection system which prevents the multiple automatic registration of fraudulent accounts at GMail is cracked following the same breakage in Yahoo! and Microsoft Live webmail services. The example of spambot work is published by Russian security blog urs-molotoff.blogspot.com.

The bot goes wild with a trojan. After some user’s computer is infected, the bot grabs GMail captcha and sends it to a special server where the captcha is recognized and the result is send back to the bot, so it can register a new Gmail account and start spamming. The address of the spam server is hidden in this example but the authors of the security blog told Webplanet that the bot "is connected to Russian-speaking site". Russian spam bots crack Google Mail captcha | Вебпланета

Technorati Tags: Google Mail, Mail captcha, spam bots