Starkiller Phishing Kit: Why MFA Fails Against Real-Time Reverse Proxies β Technical Analysis + Rust PoC for TLS Fingerprinting
25 February 2026 at 06:15
Author here. Starkiller got my attention this week β Abnormal AI's disclosure of a PhaaS platform that proxies real login pages instead of cloning them. I wrote a technical breakdown of the AitM flow, why traditional defences (including MFA) fail, and concrete detection strategies including TLS fingerprinting. I also released ja3-probe, a zero-dependency Rust PoC that parses TLS ClientHello messages and classifies clients against known headless browser / proxy fingerprints.
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