[email protected] is a malicious npm package masquerading as a dotenv variant. Full walkthrough of the obfuscated dropper, the encoded PowerShell it builds, and the DonutLoader plus Epsilon Stealer payload it pulls from a Cloudflare Tunnel.

How DHCP packets leak operating-system and device-type information without generating any extra traffic, why option 55 (Parameter Request List) is the strongest tell, and why the technique is useful to both red and blue teams.