The bigops-telephony-client package (version 35.7.6) includes code that, upon requiring the package, downloads platform-specific binaries from obfuscated Cloudflare Workers domains. These binaries are saved to temporary locations with names mimicking legitimate .NET diagnostic tools, given executable permissions, and executed detached from the main process. A fallback delivery mechanism uses DNS TXT records from specific domains to reconstruct a base64-encoded payload. Additionally, a parallel drop-and-execute implementation exists in the telemetry.js module, currently unreferenced by the main entry point. This combination of techniques constitutes a supply-chain dropper that delivers arbitrary attacker-controlled code to all consumers of this package.

Any system with bigops-telephony-client version 35.7.6 installed or running is considered fully compromised. The attacker can execute arbitrary code with the privileges of the affected process, potentially gaining full control over the system. All secrets and keys stored on the compromised system should be considered exposed and must be rotated immediately from a secure environment. Removing the package alone may not eliminate all malicious components due to the detached execution and persistence mechanisms.

Immediate removal of the bigops-telephony-client package version 35.7.6 is recommended. All secrets and credentials stored on affected systems should be rotated from a separate, uncompromised environment. Due to the nature of the compromise, a full system investigation and remediation may be necessary. Patch status is not confirmed; check vendor advisories for updates or official fixes. No official fix or patch is currently documented.