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Malicious package

@hrmony/kit-1npm

Advisory published Updated

@hrmony/kit-1 is a confirmed malicious npm package (MAL-2026-17264) that steals credentials and exfiltrates sensitive data (malicious version 1.99.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @hrmony/kit-1 (npm)

MAL-2026-17264
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @hrmony/kit-1

What this malware does

The package executes credential-harvesting code both from its postinstall script (scripts/check-setup.mjs) and from its main entry (index.js), so theft fires on npm install and again on require/import even when lifecycle scripts are skipped. Both code paths query the EC2 Instance Metadata Service at 169.254.169.254 (IMDSv2 token flow) to retrieve instance identity, IAM role names, and the role's temporary security credentials; enumerate all of process.env; and recursively read /var/run/secrets/ (Kubernetes service-account tokens and mounted secrets). The collected data is POSTed to https://hrmnmn.dd.h4x.tv/save_instance_info_hook and https://hrmnmn.dd.h4x.tv/save_instance_info_index. An additional unconditional beacon POST ({"c53":"hello"}) to the same host provides install/import telemetry. The h4x.tv destination has no relation to any declared publisher or purpose.

Malicious versions

1 flagged
1.99.0

Indicators of compromise (SHA-256)

0a4084c44ab6554d66c474338de2cb482a25b31e6822d470e08b2b2ef5b1735a

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for @hrmony/kit-1 (version 1.99.0).

  2. If you installed it — respond

    @hrmony/kit-1 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/kit-1 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/kit-1 on npm has been identified as a malicious package (version 1.99.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020669

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @hrmony/kit-1-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/kit-1 (npm) malicious package — MAL-2026-17264 | O3 Security