focaleysnpm
Advisory published Updated
focaleys is a confirmed malicious npm package (MAL-2026-17329) that executes malicious code on install (malicious version 1.1.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in focaleys (npm)
What this malware does
package.json declares the dependency 'libsignal' as 'github:rexxzyid/libsignal-node' with no tag, version, or commit SHA. On npm install, this resolves to whatever the default branch HEAD contains at that moment, with no integrity check, and any lifecycle scripts in the fetched repository execute on the installer's machine. Whoever controls the rexxzyid GitHub account controls code that runs at install time for every installer of focaleys, and the fetched code can change silently between installs without any change to focaleys itself.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for focaleys (version 1.1.0).
If you installed it — respond
Remove focaleys 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 focaleys 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
- OX Security · finder
Detect & block this
O3 blocks focaleys-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.