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Part of a larger attack: @hrmony published 34 malicious packages. See the full campaign →
Malicious package

@hrmony/pladddform-codegennpm

Advisory published Updated

@hrmony/pladddform-codegen is a confirmed malicious npm package (MAL-2026-17273) that steals credentials and exfiltrates sensitive data (malicious version 49.99.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @hrmony/pladddform-codegen (npm)

MAL-2026-17273
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @hrmony/pladddform-codegen

What this malware does

On module load, index.js unconditionally beacons to the hardcoded non-first-party endpoint https://hrnmn.dd.h4x.tv/save_instance_info_from_pkge_hrmony_pladddform-codegen and then performs three credential-harvest flows against the installer: (1) queries the AWS instance metadata service at 169.254.169.254 (IMDSv2), enumerates IAM role names, retrieves each role's security credentials, and collects the EC2 identity document, user-data, and network-interface metadata; (2) enumerates all process.env entries; (3) recursively reads /var/run/secrets/ (Kubernetes projected service-account tokens and mounted secrets). The collected data is POSTed to the same hardcoded attacker host. The package name is a typosquat of an @hrmony scoped package with an inflated version (49.99.0) consistent with a dependency-confusion attempt, and it declares an internal-looking sibling dependency @hrmony/kit-5. The exfiltration URL path embeds the package name, indicating a campaign-style beacon per lure.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

1 flagged
49.99.0

Indicators of compromise (SHA-256)

58f0706d7223f8a1ff87ac80c6e1e42af148214545e55acc865cce12fee7eec4
7506445769ecafceaa9997f0a2e50c59f9573d93d70ac74c88e105477033f05a

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for @hrmony/pladddform-codegen (version 49.99.0).

  2. If you installed it — respond

    @hrmony/pladddform-codegen 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 @hrmony/pladddform-codegen 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. @hrmony/pladddform-codegen on npm has been identified as a malicious package (version 49.99.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020650GHSA-4jh6-g3hw-7qjc

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @hrmony/pladddform-codegen-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

@hrmony/pladddform-codegen (npm) malicious package — MAL-2026-17273 | O3 Security