MAL-2026-11063 Malicious code in xo-member-components (npm)

index.js runs as a preinstall lifecycle script on npm install. It collects host identity and network configuration — os.hostname(), os.platform(), os.arch(), os.homedir(), and dns.getServers() — serializes the values as JSON, and POSTs them via https.request to the hardcoded host bq5y8jbk0j29x3az0p1p931i69c10sqgf.oastify.com at path /hit. oastify.com is the Burp Collaborator out-of-band callback service; the unique subdomain identifies a specific operator's collector. Installing the package causes the installer's host identifiers to leave the machine to an attacker-controlled destination. The package presents itself as a dependency-confusion proof of concept, which does not change the installer-side effect.

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.

The OpenSSF Package Analysis project identified 'xo-member-components' @ 28.0.0 (npm) as malicious.

It is considered malicious because:

• The package communicates with a domain associated with malicious activity.