The bigops-telephony npm package version 35.8.4 contains malicious code that downloads and executes opaque binaries from remote hosts, disguising them as telemetry components. This behavior results in full system compromise, allowing attackers to gain control over the affected computer. The package uses environment variables and marker files to evade detection and mimic legitimate telemetry. Removal of the package alone does not guarantee eradication of the malicious payloads. Immediate secret and key rotation is advised for compromised systems.