MAL-2026-12482 Malicious code in tool-registry-scripts (npm)

package.json declares a preinstall hook that runs index.js on npm install. index.js collects host identifiers (os.hostname(), os.userInfo(), homedir, DNS servers, cwd, package.json contents) and reads /etc/passwd and /etc/hosts, then POSTs the resulting JSON over HTTPS to the hardcoded out-of-band collaborator subdomain lsh5x8dwumsekllw37kacgaqxh3cr2fr.oastify.com. The destination is a Burp Collaborator OOB endpoint unrelated to any documented package purpose, and execution is automatic at install time.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.