CAPTCHA
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Blog
Malicious ads push Lumma infostealer via fake CAPTCHA pages
A large-scale malvertising campaign distributed the Lumma Stealer info-stealing malware through fake CAPTCHA verification pages that prompt users to run PowerShell commands to verify they are not a bot. The campaign leveraged the Monetag ad network to propagate over one million ad impressions daily across three thousand websites. The malicious operation, dubbed “DeceptionAds” by Guardio Labs and Infoblox researchers, is believed…
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Blog
Researchers Develop AI Model That Can Fool CAPTCHA With 100% Accuracy
There’s no doubt that CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) puzzles can get super annoying, especially if you’re trying to book that last-minute plane ticket or are simply trying to log into a website. Yes, the ones where you have to mark stairs, bikes, buses, and crosswalks from a series of grids. Well, that…
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Greasy Opal’s CAPTCHA solver still serving cybercrime after 16 years
A developer that researchers now track as Greasy Opal, operating as a seemingly legitimate business, has been fueling the cybercrime-as-a-service industry with a tool that bypasses account security solutions and allows bot-led CAPTCHA solving at scale. Greasy Opal has been active for more nearly two decades and tailors its tools based on customers’ targeting needs. Its software has been used…
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