Two Joyfill npm Beta Releases Compromised to Deliver DEV#POPPER Remote Access Trojan

Two beta releases of the @joyfill npm packages (@joyfill/layouts and @joyfill/components) were compromised to deliver the DEV#POPPER remote access trojan. The malicious code executes upon import, enabling arbitrary code execution, data exfiltration, and persistence via developer tools. The attack uses blockchain transactions for payload delivery and includes a secondary Python-based infostealer targeting credentials and browser data.

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