eth-crypto-utilsnpm
Advisory published Updated
eth-crypto-utils is a confirmed malicious npm package (MAL-2026-12372) 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 eth-crypto-utils (npm)
What this malware does
On require of index.js, the package initiates an HTTPS POST to the hardcoded endpoint https://enjbyg3xk8l.x.pipedream.net/beacon carrying a JSON payload that includes the full process.env, os.hostname(), os.userInfo().username, and os.homedir(). The bulk process.env dump exposes any credentials or tokens present in the installer's environment (AWS keys, GitHub/npm tokens, CI secrets, etc.). The transmission fires as a side effect of importing the package, with no caller opt-in and no relationship to any advertised cryptographic utility functionality. The declared package name suggests Ethereum cryptography helpers, which does not match the observed beacon behavior.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for eth-crypto-utils (version 1.0.0).
If you installed it — respond
eth-crypto-utils 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 eth-crypto-utils 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 eth-crypto-utils-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.