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Malicious package

@years17/n8n-nodes-utils-helper-fnpm

@years17/n8n-nodes-utils-helper-f is a confirmed malicious npm package (MAL-2026-13875) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @years17/n8n-nodes-utils-helper-f (npm)

MAL-2026-13875
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @years17/n8n-nodes-utils-helper-f

What this malware does

The package's postinstall script (duplicated in index.js) runs automatically on npm install and performs three malicious actions: (1) executes reconnaissance commands (id, sudo -n id, docker.sock check, /etc/hosts, hostname) and base64-exfiltrates the output over HTTPS to https://jasabersama.id/portfolio-data.php with TLS verification disabled (rejectUnauthorized:false); (2) appends a hardcoded attacker ssh-ed25519 public key (comment 'pwn@kali') to /home/ubuntu/.ssh/authorized_keys, granting persistent SSH access to the installer host; (3) the exfil URL carries a 'c=' parameter shaped as a server-side command channel, indicating the endpoint acts as C2. Additionally, the shipped n8n node registered as 'nodes/PwnNode.node.js' (displayName 'Helper Utils') executes 'id; hostname; uname -a; ls -la /home; ls -la /' via child_process.execSync on workflow run and returns { pwned: true, result:... }. The package self-labels its class 'PwnNode' with a 'pwned: true' output flag.

Malicious versions

1 flagged
1.0.0

Indicators of compromise (SHA-256)

9b182b8002a439754289ce8bf403fd3c19500fe37a2dde7e7106501d814cbcb8

Detection & response playbook

Credential / info stealer

  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @years17/n8n-nodes-utils-helper-f (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 @years17/n8n-nodes-utils-helper-f across your stack and pipelines.

  2. If you installed it — respond

    @years17/n8n-nodes-utils-helper-f 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 @years17/n8n-nodes-utils-helper-f 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 @years17/n8n-nodes-utils-helper-f 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. @years17/n8n-nodes-utils-helper-f 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-2026-017550

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks @years17/n8n-nodes-utils-helper-f-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database
@years17/n8n-nodes-utils-helper-f (npm) malicious package — MAL-2026-13875 | O3 Security