sorrawit-dev-helpernpm
sorrawit-dev-helper is a confirmed malicious npm package (MAL-2026-16344) 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 sorrawit-dev-helper (npm)
What this malware does
package.json declares a postinstall lifecycle script that runs automatically on npm install. The script reads /tmp/flag.txt from the installer's machine and sends its URL-encoded contents as a query parameter to a hardcoded ngrok tunnel at https://ca37-49-237-83-218.ngrok-free.app/. The destination is an ephemeral tunnel host unrelated to any legitimate publisher, and the read+exfil fires without user interaction. The behavior matches install-time credential/file exfiltration with a concrete installer-side data source and a concrete attacker-controlled destination.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for sorrawit-dev-helper (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 sorrawit-dev-helper across your stack and pipelines.
If you installed it — respond
sorrawit-dev-helper 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.
Did it already run?
If sorrawit-dev-helper 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 sorrawit-dev-helper 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 sorrawit-dev-helper-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.