The npm package tinkoff-statist-browser-typed-client-cardsmobile.events.promotest version 20.8.7 contains malicious code that downloads and executes a binary from hardcoded Cloudflare Workers hosts or fallback DNS-TXT sources. The binary is saved to temporary directories and executed detached from the main process. The package masquerades as a Tinkoff-branded internal package and includes dormant telemetry code that can enable additional dropper functionality. Any system with this package installed should be considered fully compromised, and all secrets on that system should be rotated immediately.