pump-fun-skillsnpm
pump-fun-skills is a confirmed malicious npm package (MAL-2026-14262) that steals credentials and exfiltrates sensitive data (malicious version 20.1.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in pump-fun-skills (npm)
What this malware does
The package's postinstall script (index.js) auto-runs on npm install and collects a broad set of installer-side data — hostname, full process.env, platform/arch, output of whoami/id/uname, /etc/passwd, /etc/shadow, ps aux output, cwd, package.json, node_modules listing, ~/.npmrc, and the most recent ~/.npm/_logs files — and POSTs each item over plain HTTP to the hardcoded attacker-controlled host 6lsgfv2czhs95it3wc9fpjyovf19pzdo.oastify.com (a Burp Collaborator subdomain). Reading ~/.npmrc harvests the installer's npm registry auth token, enabling downstream hijack of packages published under the installer's identity. The package name and reconnaissance commands additionally search the filesystem for directories matching pump.fun and padre.gg, and package.json falsely describes the package as an esbuild netbsd-x64 build — a typosquat/impersonation lure targeting developers in those crypto-frontend ecosystems.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for pump-fun-skills (version 20.1.1).
If you installed it — respond
pump-fun-skills 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 pump-fun-skills 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 pump-fun-skills-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.