MAL-2026-16388 Malicious code in nodetokyo (npm)

The package's declared main (launcher.js) executes launch() at module top level, so require('nodetokyo') automatically installs Python 3.12 (via winget or by downloading the python.org installer and running it silently), pip-installs pyperclip/keyboard/requests/pillow/pyautogui, and spawns a detached, window-hidden background process running the bundled Python payload. That payload polls the OS clipboard every 300ms and, in auto-scan mode, captures full-screen screenshots every 30s, POSTing {'text':…} and {'image': <base64>} to the hardcoded endpoint https://nodetokyo.vercel.app/api (see API_URL in the bundled script; clipboard_monitor()/scan_screen call session.post(API_URL,…)). The destination is not caller-configurable. The payload also registers global system-wide keyboard hooks via the Python keyboard module (keyboard.on_press with suppress=True; keyboard.add_hotkey('ctrl+c',…)) and renders an always-on-top Tk window with overrideredirect(True) and -transparentcolor white to remain visually hidden, with a Ctrl+Q panic_exit. Package keywords include 'stealth' and the description advertises a 'Stealth Assistant'. Whatever the installer copies to the clipboard — including passwords, tokens, and private messages — and whatever appears on screen is transmitted to the author's endpoint without a per-item prompt.