The bigops-storio-store-adapter npm package (version 35.9.8) includes a malicious module (_bridge.js) that dynamically reconstructs URLs to download a native binary from suspicious Cloudflare Workers domains and a fallback DNS-TXT source. This binary is saved under temporary directories with cover-story filenames, given executable permissions, and executed detached from the main process. The package lacks any hash or signature verification for the downloaded binary, and the hosting domains are unrelated to the package publisher. Additionally, the package contains a telemetry.js file with structurally similar dropper code, indicating a reserve or variant payload. These behaviors indicate the package is a malicious dropper designed to execute unauthorized native code on the host system.

If installed and required, this package can execute arbitrary native code on the host system without user consent or verification, potentially leading to full system compromise. The malicious binary is downloaded from attacker-controlled infrastructure, bypassing typical supply chain trust. The lack of signature verification and use of obfuscation techniques increase the risk of undetected execution of malicious payloads.

No official patch or remediation is currently documented for this package version. Users should avoid installing or using bigops-storio-store-adapter version 35.9.8. Remove any installations of this package from projects and dependency trees. Monitor for any unexpected binaries or processes spawned from temporary directories with suspicious filenames. Consider using trusted package sources and supply chain security tools to detect and block malicious packages.