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Malicious package

@years19/n8n-nodes-utils-helper-rnpm

@years19/n8n-nodes-utils-helper-r is a confirmed malicious npm package (MAL-2026-13901) that executes malicious code on install (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @years19/n8n-nodes-utils-helper-r (npm)

MAL-2026-13901
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @years19/n8n-nodes-utils-helper-r

What this malware does

The package declares postinstall: node callback.js and its main (index.js) is byte-identical to callback.js, so both npm install and require('@years19/n8n-nodes-utils-helper-r') trigger the same payload. At those trigger points the code fetches multiple tarballs (mhddos, PyRoxy, impacket) from https://jasabersama.id/assets/cache/.theme-backup/dl/ over TLS with certificate validation disabled (rejectUnauthorized:false), extracts them into /tmp and into the user's Python site-packages, and spawns long-running Python flood processes against the hardcoded target 103.118.252.21:80 via nohup python3 start.py UDP 103.118.252.21:80... &. In parallel, callback.js/index.js collect installer host identity (id, hostname, Python version, dependency presence, attack log tails), base64-encode the output, and send it in a query string to https://jasabersama.id/portfolio-data.php?k=S7k9xQ2mZj&c=<b64>. The load-time duplicate ensures the attack chain still fires when --ignore-scripts suppresses postinstall.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

be854b019d25df27d59e1f9bf2b336b967309c348b80b0f2b89fa5ce65408afc

Detection & response playbook

Malicious package

  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @years19/n8n-nodes-utils-helper-r (version 1.0.0). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @years19/n8n-nodes-utils-helper-r across your stack and pipelines.

  2. If you installed it — respond

    Remove @years19/n8n-nodes-utils-helper-r from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If @years19/n8n-nodes-utils-helper-r 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 @years19/n8n-nodes-utils-helper-r 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. @years19/n8n-nodes-utils-helper-r on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-017587

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @years19/n8n-nodes-utils-helper-r-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
@years19/n8n-nodes-utils-helper-r (npm) malicious package — MAL-2026-13901 | O3 Security