MalwarePublished 29 Sep 2026

@hrmony/mailer-pladddform (npm) · Malicious Code

Affects @hrmony/mailer-pladddformSource GCVE Database

Malicious package : remove @hrmony/mailer-pladddform and rotate any secrets on hosts that installed it.

Data as of 29 Sep 2026, 21:25 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-17268

What to do

Remove @hrmony/mailer-pladddform from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npm@hrmony/mailer-pladddform	Affected =1.99.0	Fixed in–

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Description

The npm package @hrmony/mailer-pladddform contains malicious code that executes immediately upon import. It harvests AWS IAM credentials, EC2 instance identity documents, Kubernetes ServiceAccount tokens, and other secrets from the host environment and exfiltrates them to a hardcoded attacker-controlled endpoint. The package does not provide any legitimate mailer functionality and appears to be a typosquatting or dependency confusion attack. Installation of this package compromises the host system, requiring immediate secret rotation and removal of the package.

Impact

Any system with this package installed or running is considered fully compromised. All secrets and keys stored on the system may have been exfiltrated to an attacker. This includes AWS IAM credentials, EC2 instance identity documents, Kubernetes ServiceAccount tokens, and other mounted secrets. The attacker may have gained persistent control of the system. Simply removing the package does not guarantee removal of all malicious software or attacker access.

Defensive guidance

Remove the @hrmony/mailer-pladddform package immediately. Rotate all secrets and keys that were stored on the compromised system from a separate, trusted environment. Conduct a thorough investigation for additional malicious software or persistence mechanisms installed by the attacker. Do not rely solely on package removal for remediation.

Summary

The @hrmony/mailer-pladddform npm package is malicious. Its index.js runs at top-level import and performs three credential-harvesting flows: (1) it requests an IMDSv2 token from the AWS metadata service and extracts IAM role credentials and EC2 instance identity documents; (2) it enumerates environment variables and reads Kubernetes secrets from /var/run/secrets/; (3) it sends all collected data as JSON to a hardcoded attacker endpoint (https://hrnmn.dd.h4x.tv/save_instance_info_from_pkge_hrmony_mailer-pladddform). The package name uses misspellings consistent with typosquatting. It also pulls in additional attacker-controlled code via a same-scope dependency. The package contains no legitimate mailer functionality.

References

Community reviews

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What to do

Affected software

Description

AI analysisMachine-generated, updated 29 Sep 2026, 21:25 UTC

Technical details

References

Community reviews