fdhcvriwecv3npm
Advisory published Updated
fdhcvriwecv3 is a confirmed malicious npm package (MAL-2026-13807) 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 fdhcvriwecv3 (npm)
What this malware does
The tarball contains only package.json and index.html. package.json declares main as index.html, and there are no preinstall/install/postinstall/prepare scripts. index.html mimics a Cloudflare 'Just a moment...' interstitial and runs obfuscated JavaScript inside a 1-second setTimeout that constructs a URL pointing at a '*.cloud.homes' host and calls window.location.replace() with the current query string forwarded. Because main points at HTML, the module cannot be loaded via require()/import, and no JavaScript executes at npm install time or when the package is required. The behavior only fires if a browser fetches index.html through a public npm CDN (unpkg/jsdelivr) — a CDN-abuse / phishing-hosting pattern that leverages npm as a redirector host, not a supply-chain attack against developers who install the package. No credentials are read, no network callbacks fire on install/import, and no code runs on the installer's machine.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for fdhcvriwecv3 (version 1.0.0).
If you installed it — respond
fdhcvriwecv3 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 fdhcvriwecv3 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 fdhcvriwecv3-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.