dds-js-idlnpm
Advisory published Updated
dds-js-idl is a confirmed malicious npm package (MAL-2026-4264) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.0, 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in dds-js-idl (npm)
What this malware does
On npm install, postinstall.js runs whoami via execSync and collects os.hostname(), os.platform(), cwd, and CI/GitHub env vars, then exfiltrates them over HTTPS GET to lg5ys3jebfzwk366pilidbmah1nsbszh.oastify.com/nasa/dds-js-canary/ and additionally performs a DNS lookup of ${whoami}.lg5ys3jebfzwk366pilidbmah1nsbszh.oastify.com as a DNS-channel fallback that defeats egress HTTPS filtering. The package self-describes as a Security research canary — NASA VDP, but it fires on every install without consent and leaks installer identity and repository/CI context to a third-party Interactsh (oastify.com) collector controlled by the canary operator. Regardless of stated research intent, the structural behavior is install-time host fingerprinting and out-of-band exfiltration.
The OpenSSF Package Analysis project identified 'dds-js-idl' @ 1.0.0 (npm) as malicious.
It is considered malicious because:
- The package executes one or more commands associated with malicious behavior.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for dds-js-idl (2 malicious versions).
If you installed it — respond
dds-js-idl 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 dds-js-idl 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
- OpenSSF: Package Analysis · finder
Detect & block this
O3 blocks dds-js-idl-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.