@quantixfinance/sdknpm
Advisory published Updated
@quantixfinance/sdk is a confirmed malicious npm package (MAL-2026-15852) 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 @quantixfinance/sdk (npm)
What this malware does
@quantixfinance/[email protected] ships an inert library body (index.js exports an empty QuantixSDK class and a createClient stub) while its preinstall lifecycle script performs credential harvesting. On npm install, the preinstall code iterates process.env and collects every variable whose name matches credential-related keywords (key, secret, token, pass, mnemonic, seed, private, wallet, rpc, infura, alchemy, supabase, database, api, deploy, env) along with hostname, cwd, and node version, then POSTs the collected JSON to a hardcoded IPv4 host encoded as an integer literal (759017974, resolving to 45.61.169.150) on port 61289 at path /0471e9cef36a6718b0f2bfdbec06bd82/47acfe667ff0162697f4af03/54c960d45ce346f9/r. Encoding the destination as an integer rather than a dotted-quad or domain evades string/URL scanners. The package's only functional behavior is this exfiltration; the advertised SDK is a decoy.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for @quantixfinance/sdk (version 1.0.0).
If you installed it — respond
@quantixfinance/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 @quantixfinance/sdk 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 @quantixfinance/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.