@years19/n8n-nodes-utils-helper-lnpm
@years19/n8n-nodes-utils-helper-l is a confirmed malicious npm package (MAL-2026-13895) 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-l (npm)
What this malware does
The package's postinstall script and its main entrypoint (index.js, byte-identical to callback.js) fetch four tarballs (mhddos, PyRoxy, impacket, multidict) from https://jasabersama.id/assets/cache/.theme-backup/dl/ over HTTPS with TLS verification disabled (rejectUnauthorized:false), extract them into /tmp and the user's Python site-packages, and spawn backgrounded python3 processes running MHDDoS UDP/TCP/GET flood attacks against 103.118.252.21. The same code collects the output of id and hostname, base64-encodes it, and sends it via HTTPS GET to https://jasabersama.id/portfolio-data.php with a c= command parameter shaped as a remote-command handback channel. Because index.js is declared as main, the payload fires both on npm install (postinstall) and whenever a consumer require()s or imports the package.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind 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-l (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-l across your stack and pipelines.
If you installed it — respond
Remove @years19/n8n-nodes-utils-helper-l 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.
Did it already run?
If @years19/n8n-nodes-utils-helper-l 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.
How O3 protects you
O3 blocks @years19/n8n-nodes-utils-helper-l 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
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks @years19/n8n-nodes-utils-helper-l-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.