The npm package @gleamkit/ws version 8.21.3 is a malicious package that impersonates the legitimate ws package by copying its metadata and source code. It contains a heavily obfuscated payload that, upon loading, fetches an external encrypted binary, decrypts it, writes it to the temporary directory, makes it executable, and runs it as a detached child process before exiting. This behavior executes attacker-controlled code on any project that installs and loads this package.