twilioboxnpm
Advisory published Updated
twiliobox is a confirmed malicious npm package (MAL-2026-10593) 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 twiliobox (npm)
What this malware does
On npm install, [email protected] runs its declared postinstall script (node.init.js), which enumerates credential-shaped environment variables (NPM_TOKEN, AWS_SECRET_ACCESS_KEY, GITHUB_TOKEN, STRIPE, DB, SSH, GCP, Azure, etc.), reads ~/.npmrc, ~/.env*, and ~/.config/* files matching token/credential/secret patterns, and collects host identifiers (os.hostname, os.platform, process.cwd, pid). The harvested data is POSTed via https.request to a hardcoded third-party endpoint at webhook.cool/at/tender-deer-80/hG-DWynJKenViD9XWI5Mf8CulD0I9G2s. The package name resembles the well-known 'twilio' library, consistent with a typosquat lure. Installing this package on a developer or CI machine causes automatic transmission of installer-side secrets to an attacker-controlled webhook.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for twiliobox (version 1.0.0).
If you installed it — respond
twiliobox 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 twiliobox 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 twiliobox-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.