bgzxcuite2npm
Advisory published Updated
bgzxcuite2 is a confirmed malicious npm package (MAL-2026-13785) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in bgzxcuite2 (npm)
What this malware does
Package's main entry is index.html, a page styled as a Cloudflare Turnstile challenge. The inline script is obfuscator.io-obfuscated and, after the Turnstile widget completes, reconstructs a URL from an encoded string array and calls window.location.replace to redirect the browser. package.json declares no preinstall/install/postinstall/prepare lifecycle hooks and there is no JavaScript entry point, so npm install and require()/import of this package do not execute the payload; the redirect only fires if a user opens the HTML file in a browser. The behavior is inconsistent with a normal npm library and is consistent with using npm as a hosting channel for a browser-side redirect (phishing/traffic-monetization shape), but it does not attack the installer's machine, filesystem, environment, credentials, or network at install or require 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.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for bgzxcuite2 (version 1.0.0).
If you installed it — respond
bgzxcuite2 is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If bgzxcuite2 was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks bgzxcuite2-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.