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Malicious package

dds-js-idlnpm

Malicious code in dds-js-idl (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-4264
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall dds-js-idl

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

2 flagged
1.0.01.0.1

Indicators of compromise (SHA-256)

282ab4387de68701d586cdeb6635a576abea042584decbb31640112e9292e83a
4b8ad096ffbd5b819ff05fa2e7240e8b64ab4f0c66bbcd5b3067e062d6bbbf29
9762fd0560dfcdafa569313e27731335cf7544e6101c559dc6a41fda68b94ad8
c864bc6e21a3795faba4de876942dfffa4baed76c926d96d52c83c32d1f49f69

Detection & response playbook

Credential / info stealer
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for dds-js-idl (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging dds-js-idl across your stack and pipelines.

  2. 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.

  3. Did it already run?

    If dds-js-idl was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks dds-js-idl before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. dds-js-idl on npm has been identified as a malicious package (versions 1.0.0, 1.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-004286IN-MAL-2026-004285IN-MAL-2026-004280

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.

dds-js-idl (npm) malicious package — MAL-2026-4264 | O3 Security