ttspc-server-samplenpm
ttspc-server-sample is a confirmed malicious npm package (MAL-2026-5707) that steals credentials and exfiltrates sensitive data (malicious versions 9.0.0, 9.0.1, 99.9.0…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in ttspc-server-sample (npm)
What this malware does
[email protected] declares postinstall: node index.js in package.json, so on npm install it automatically executes index.js. The script collects the installer's hostname, username, current working directory, network interface IPs/MACs, OS info, the presence of env vars including credential-shaped names (APP_KEY/APP_SECRET/etc.), and the full process list (ps aux on Unix, tasklist /V on Windows), then HTTP POSTs the JSON payload to a hardcoded Burp Collaborator endpoint at http://dduqpvg687wohv3ymaiaa3j2etks8swh.oastify.com (with a secondary reference to http://your-id.burpcollaborator.net). The package self-labels via X-PoC-Type: dependency-confusion / X-PoC-Package: ttspc-server-sample headers and uses an inflated 99.9.0 version designed to win semver resolution against a victim org's private internal package of the same name. Even framed as a PoC, the install-time exfiltration of host identifiers, internal IP addresses, credential-variable names, and running process inventory to an attacker-controlled OAST host is a real supply-chain attack against any installer that resolves this public package instead of the intended private one.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
The OpenSSF Package Analysis project identified 'ttspc-server-sample' @ 99.9.0 (npm) as malicious.
It is considered malicious because:
- The package communicates with a domain associated with malicious activity.
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 ttspc-server-sample (6 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging ttspc-server-sample across your stack and pipelines.
If you installed it — respond
ttspc-server-sample 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 ttspc-server-sample 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 ttspc-server-sample 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
- OpenSSF: Package Analysis · finder
Detect & block this
O3 blocks ttspc-server-sample-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.