delta-time-32bbnpm
Advisory published Updated
delta-time-32bb is a confirmed malicious npm package (MAL-2026-6351) 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 delta-time-32bb (npm)
What this malware does
Package declares a postinstall hook ("postinstall": "node run.js" in package.json) that executes run.js automatically on npm install. run.js imports os, fs, http, https, and child_process and collects host identifiers and environment data — os.hostname(), os.userInfo(), os.platform(), process.env.USER, process.cwd() — base64-encodes the payload via Buffer.from(...).toString('base64'), and POSTs over http/https. The package has no documented purpose justifying install-time host reconnaissance and outbound network. The shape (lifecycle-triggered collection of host identity + environment + base64 wrapping + HTTP POST) is a credential/host-recon exfiltration beacon executed without user interaction on default install.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for delta-time-32bb (version 1.0.0).
If you installed it — respond
delta-time-32bb 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 delta-time-32bb 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 delta-time-32bb-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.