Malicious npm Packages Pose as PostCSS Tools to Deliver Windows RAT

Jun 23, 2026

Cybersecurity researchers have discovered a set of malicious npm packages that are designed to deliver a Windows-based remote access trojan (RAT).

The list of identified packages, is below –

aes-decode-runner-pro (145 downloads)
postcss-minify-selector (256 downloads)
postcss-minify-selector-parser (615 downloads)

All the packages were published over the past month by an npm user named

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