The malicious npm package bnpl-blocks-atom-bnpl-card (version 35.9.4) loads a secondary script that constructs Cloudflare Workers hostnames from fragmented strings and falls back to DNS TXT records from attacker-controlled domains. It downloads an opaque native binary, writes it to temporary directories under misleading names, sets executable permissions, and executes it detached from the main process. The code uses obfuscation techniques such as dynamic string assembly and indirect child process invocation to evade static analysis. This execution occurs immediately upon requiring the package, regardless of any telemetry or analytics flags, effectively giving an attacker full control over the compromised system.

Any system with this package installed or running is considered fully compromised. The attacker gains the ability to execute arbitrary native code with the privileges of the user running the package. This compromises all secrets and keys stored on the system. Removal of the package alone does not guarantee eradication of the malicious payload or persistence mechanisms.

Immediate removal of the bnpl-blocks-atom-bnpl-card package version 35.9.4 is required. All secrets, credentials, and keys stored on the compromised system should be rotated from a separate, trusted device. Due to the nature of the compromise, a full system investigation and potential rebuild is recommended to ensure complete removal of malicious components. No official patch or fix is available; the package itself is malicious.