Skip to content
OpenAdvisories
Malicious MAL-2026-17552

css-hgwctv-polyfill

npm package · versions 1.0.0

Reported Oct 5, 2026 · Updated Oct 5, 2026

If this package is installed

Remove it, treat the machine (or CI runner) as compromised, and rotate every secret, token and key it could access — from a different, clean machine.

Details

Source: amazon-inspector (ee1103a16c6f933686f07e8ce94068057f49e5cf2f0a6a9ccf01f2baeb7cfe95)
On require, thunderboltRegistry.js runs an immediately-invoked function that uses child_process.execSync to collect host identity and network reconnaissance from the installer's machine (`id`, `whoami`, `uname -a`, `ifconfig`/`ip addr`, and `/etc/hosts`), plus hostname, Node.js version, platform and pid, and transmits each result via fetch to the hardcoded plain-HTTP endpoint http://dxpoc.gt.tc/callback.php/bb8968d0f67000433bf7005dd5ad2d1f. The package also exports Proxy stubs named thunderboltRegistry, siteAssetsRegistry, editorRegistry, corvidRegistry and ships a registry-manifest.min.json referencing parastorage.com, mimicking internal Wix thunderbolt build modules so the module auto-loads inside a Wix build and executes the reconnaissance payload. A CSS polyfill has no functional reason to execute shell commands, read /etc/hosts, or contact an external host.