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Malicious package

@notrainer/nobtrainer-sdknpm

Advisory published Updated

@notrainer/nobtrainer-sdk is a confirmed malicious npm package (MAL-2026-18446) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.2, 1.0.3, 1.0.4…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @notrainer/nobtrainer-sdk (npm)

MAL-2026-18446
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @notrainer/nobtrainer-sdk

What this malware does

Malicious package. @notrainer/nobtrainer-sdk is an npm package that exfiltrates sensitive data on the victim host to an attacker-controlled Discord webhook. The same Discord webhook endpoint (ID 1433690093175967776) is also used by the npm package @johnruff215-dev/solana-wallet-tracker, indicating both belong to a single actor/campaign. Classification: information stealer. The package provides no legitimate functionality, so all published versions are malicious. Full indicators are published at the reference below.

Malicious versions

4 flagged
1.0.21.0.31.0.41.0.5

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for @notrainer/nobtrainer-sdk (4 malicious versions).

  2. If you installed it — respond

    @notrainer/nobtrainer-sdk 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 @notrainer/nobtrainer-sdk 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

No. @notrainer/nobtrainer-sdk on npm has been identified as a malicious package (versions 1.0.2, 1.0.3, 1.0.4, 1.0.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Credits

  • wormsign · finder

Detect & block this

O3 blocks @notrainer/nobtrainer-sdk-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

@notrainer/nobtrainer-sdk (npm) malicious package — MAL-2026-18446 | O3 Security