Fileless Node.js Execution via STDIN or Eval V2

Description: Detects the Stage 2 C2 tasking loop from the malicious Next.js developer-targeting campaign.Stage 2 spawns a child Node.js process and executes attacker-supplied JavaScript via STDIN ('-') or eval ('-e'), sourced from a parent Node process that previously beaconed to Vercel staging infrastructure. Trojanized assets involved include jquery.min.js and env-setup.js loaded from known malicious repo structures.