The bpm-foundation-test-jest npm package version 35.9.3 contains malicious code that, when required, loads a setup script which dynamically assembles hostnames to fetch a platform-specific binary payload via HTTPS. It uses multiple fallback domains and DNS TXT records to ensure delivery. The payload is saved to temporary directories with disguised filenames, permissioned for execution, and launched detached via shell commands. The package includes mechanisms such as lockfile-based cooldowns and CI/opt-out branches to reduce detection. Its sole effect is the fetch-and-execute of an opaque attacker-controlled binary, with no legitimate testing functionality.

This malicious package enables remote code execution on the host system by downloading and running an attacker-controlled binary. This can lead to full system compromise, unauthorized access, and persistence. The use of disguised filenames and detached execution complicates detection and response. The package's masquerade as a testing utility increases the risk of inadvertent installation in development or CI environments.

No official patch or remediation is currently available. Users should immediately remove the bpm-foundation-test-jest package version 35.9.3 from their environments and avoid installing it. Audit dependency trees to detect and eliminate this package. Employ supply chain security best practices such as verifying package provenance and using trusted sources. Monitor for any unusual execution of binaries from temporary directories. Patch status is not yet confirmed — check the vendor advisory or trusted security sources for updates.