Posts Tagged: ReCaptcha


Google’s reCAPTCHA under automatic fire from a newly launched reCAPTCHA-solving/breaking service

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It can be easily argued, that CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart), is the modern day’s ‘guardian of the Web’, in the context of preventing the mass, systematic, and efficient abuse of virtually each and every Web property there is. Over the years, CAPTCHA developers continued to strike a balance between the actual usability and sophistication/resilience to attacks, while excluding the beneath the radar emergence of a trend, which would later on prove to successfully exploit a fundamental flaw in the very concept of the CAPTCHA process. Namely, the fact that, the very same humans […]

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Research: Google’s reCAPTCHA under fire

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Who needs automated bots solving CAPTCHAs, when you have teams of low-waged humans recognizing them for pennies? In an underground cybercrime ecosystem dominated by managed services and countless outsourcing opportunities, it’s fairly logical to assume that Google’s reCAPTCHA is under constant fire. Just how easy is it to recognize reCAPTCHA images for malicious account registration and service abuse purposes? Let’s find out.

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Botnet malware targets MyYearbook

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The team here at Webroot has picked up on a Trojan that appears to target a relatively new social networking site: MyYearbook.com. The site caters to the high-school-age crowd with activities that include various kinds of person-to-person challenges, streaming TV, and a kind of virtual matchmaker service for the tween-and-above set. We’re calling the malware that targets the site Trojan-Myblot. We received our copy via a malicious BitTorrent download, which purportedly distributed a Windows utility. Instead, we received a file that downloaded several payloads, eventually landing our infected system firmly in the clutches of Myblot. So what does it do? The trojan, […]

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