The npm package tinkoff-component-infopanel version 20.8.3 contains malicious code that downloads and executes a platform-specific native binary from obfuscated Cloudflare Workers hosts without integrity verification. The binary is saved with disguised filenames and executed immediately upon requiring the package, resulting in full system compromise. The package impersonates the Tinkoff brand but lacks legitimate author and repository information. Removal of the package does not guarantee full remediation due to potential persistent compromise.