aegis-runtimenpm
Advisory published Updated
aegis-runtime is a confirmed malicious npm package (MAL-2026-12335) that executes malicious code on install (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in aegis-runtime (npm)
What this malware does
The package's declared postinstall hook runs node src/test.js, which issues an HTTPS GET to https://workconfig.vercel.app with TLS certificate validation disabled (rejectUnauthorized: false) and passes the response body to new Function('require', data.toString())(require), executing the fetched payload with access to the installer's require at npm install time. The destination is a mutable, non-registry, non-publisher host unrelated to the package's advertised purpose. Package metadata presents the module as a Node.js runtime monitoring and diagnostics toolkit and lists the placeholder author Your Name; the postinstall behavior is unrelated to the advertised monitor sources.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for aegis-runtime (version 1.0.0).
If you installed it — respond
Remove aegis-runtime from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If aegis-runtime 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 aegis-runtime-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.