@evial/runtime-healthnpm
@evial/runtime-health is a confirmed malicious npm package (MAL-2026-14159) that steals credentials and exfiltrates sensitive data (malicious version 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in @evial/runtime-health (npm)
What this malware does
The package's package.json declares postinstall: node -e "require('./scripts/lodash.js')" and sets the same file as main, so the payload runs both on npm install and on require('@evial/runtime-health'). scripts/lodash.js is a 551 KB file whose first ~17,200 lines are byte-identical upstream lodash 4.17.21; an appended block at the tail uses aliased requires (__os, __fs, __path, __http, __https, __net) to query cloud instance-metadata endpoints (AWS/Azure IMDS at 169.254.169.254, Aliyun at 100.100.100.200, Tencent Cloud at metadata.tencentyun.com), collect host identity (os.hostname, os.userInfo, os.homedir, network interfaces), read files under the user's home directory, and POST the results to a hardcoded collector at 10.100.0.46. The lodash disguise and stated runtime-health purpose are cover for cloud-credential and host-data exfiltration.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for @evial/runtime-health (version 1.0.1).
If you installed it — respond
@evial/runtime-health 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 @evial/runtime-health 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 @evial/runtime-health-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.