etoro-corenpm
Advisory published Updated
etoro-core is a confirmed malicious npm package (MAL-2026-16120) 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 etoro-core (npm)
What this malware does
The package's preinstall lifecycle script (preinstall.js) issues an HTTP GET to the hardcoded bare-IP endpoint http://209.126.81.147/etoro-depconf-poce346552f776f/npm/ with os.hostname(), os.userInfo().username, and process.cwd() embedded in the URL path. This runs automatically on npm install and transmits installer host identity over plaintext HTTP to an attacker-controlled destination. The package name and inflated 999.0.0 version are consistent with a dependency-confusion payload targeting an internal etoro-core name.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for etoro-core (version 999.0.0).
If you installed it — respond
Remove etoro-core 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 etoro-core 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 etoro-core-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.