node_cryptographynpm
node_cryptography is a confirmed malicious npm package (MAL-2026-14276) 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 node_cryptography (npm)
What this malware does
The package presents itself as a Node.js cryptography helper and depends on ethers, encouraging callers to pass cryptographic or wallet material to its sole exported async function. That function forwards the caller's argument via axios to an API_BASE_URL assembled at runtime from ~13 fragments produced by an obfuscator.io RC4 string-array decoder. The entire ~30 KB index.js is wrapped in the standard obfuscator.io scheme (RC4+base64 string array, hex-escaped literals, wrapped index accessors, array-rotation IIFE, and a self-defending RegExp function-body anti-tamper check) whose only purpose here is to hide the destination URL. The caller does not configure this destination and is not informed of it; normal use of the advertised API silently leaks the caller's cryptographic inputs to an author-controlled host.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for node_cryptography (version 1.0.0).
If you installed it — respond
node_cryptography 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 node_cryptography 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 node_cryptography-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.