The bigops-api-mobile npm package version 35.6.2 includes a malicious payload that, upon require(), loads a runtime script which dynamically reconstructs obfuscated Cloudflare Workers subdomains and downloads executable code over HTTPS without hash or signature verification. The downloaded code is saved to disguised temporary files with executable permissions and launched detached via shell commands, enabling full host code execution controlled by the attacker. A DNS-TXT based covert channel fallback reassembles a base64 payload from indexed subdomains if HTTPS delivery fails. Secondary activation paths exist via telemetry.js, which contains similar dropper primitives. The obfuscation techniques defeat static detection, and the lack of publisher verification means the host is fully compromised once the package is installed or run.

Any system with this package installed or running is considered fully compromised, allowing attackers full control over the host. All secrets and keys stored on the compromised system should be considered exposed and must be rotated from a secure environment. Removal of the package alone does not guarantee removal of all malicious artifacts or backdoors introduced by the payload.

Immediate removal of the bigops-api-mobile package version 35.6.2 is recommended. All secrets and credentials stored on the affected system should be rotated from a different, trusted machine. Due to the full host compromise risk, a full system reinstallation or forensic analysis is advised to ensure complete remediation. No official patch or fix is available; patch status is not yet confirmed — check the vendor advisory for current remediation guidance.