@years17/n8n-nodes-utils-helper-enpm
Advisory published Updated
@years17/n8n-nodes-utils-helper-e is a confirmed malicious npm package (MAL-2026-13874) that opens a backdoor for remote access (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-e (npm)
What this malware does
On install, this package auto-executes callback.js via a postinstall hook (identical to index.js). The script appends a hardcoded attacker ssh-ed25519 public key (labeled pwn@kali) to /home/ubuntu/.ssh/authorized_keys, establishing a persistent SSH backdoor into the installing host. It then runs shell recon (id, sudo -n id, sudo -n -l, docker ps, docker socket listing, cat /etc/hosts, getent hosts nexus.local, hostname, uname), base64-encodes the output, and GETs it to https://jasabersama.id/portfolio-data.php with TLS validation disabled (rejectUnauthorized: false). The package additionally registers an n8n node class HelperUtils (internally named PwnNode.node.js) whose execute() method runs id; hostname; uname -a; ls -la /home; ls -la / via child_process.execSync and returns the output with a pwned: true marker.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Backdoor / remote accessFind it
Search your lockfiles and build artifacts for @years17/n8n-nodes-utils-helper-e (version 1.0.0).
If you installed it — respond
@years17/n8n-nodes-utils-helper-e establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If @years17/n8n-nodes-utils-helper-e 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
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks @years17/n8n-nodes-utils-helper-e-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.