unifydatanpm
Advisory published Updated
unifydata is a confirmed malicious npm package (MAL-2026-6441) that executes malicious code on install (malicious version 3.6.6). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in unifydata (npm)
What this malware does
On require('unifydata'), index.js calls initPlugin() at module top level, performs an HTTPS GET to https://jsonkeeper.com/b/B40HL, JSON-parses the response, and executes the response's cookie field as JavaScript via new Function.constructor('require', body.cookie) — then immediately invokes the resulting function with the real require, granting it full Node module-loading capability. jsonkeeper.com is an anonymous, author-mutable JSON paste service; the bytes executed in any installer process are whatever the author has posted there at the time of import, with no pinning, hashing, or signature. The package presents itself with a header comment labeling it normalize-plus (ES6 safe version) and ships a benign-looking normalizePath helper as a decoy, while the published package name is unifydata — the mislabeled cover and unused utility code are consistent with a dropper masquerading as a routine helper. Any process that imports this package executes arbitrary attacker-controlled code with the privileges of that process.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for unifydata (version 3.6.6).
If you installed it — respond
Remove unifydata from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If unifydata 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 unifydata-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.