Fake CAPTCHA IRSF Scam and Keitaro Abuse Findings Report
🔍 Cybersecurity researchers from Infoblox disclosed an international revenue‑share fraud campaign that uses multi‑step fake CAPTCHA pages to trick users into sending premium SMS messages. The scheme leverages traffic distribution systems and JavaScript back‑button hijacking to force multiple prefilled SMS sends to dozens of international numbers, with charges often appearing weeks later. Operators also repurpose Keitaro TDS instances and compromised licenses to scale cloaking, tracking, and delivery of scams and malware.
