Hackers are establishing persistence in hospitality and hotels by posing as guests with poisoned ZIP archives, but no one knows what their plan is

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• Microsoft Threat Intelligence warns of a phishing campaign targeting hotel staff in Europe and Asia with guest complaint‑themed emails
• Attackers abuse services like Calendly and Google redirects to bypass authentication checks, delivering photo‑themed ZIPs that install a persistent Node.js implant
• Malware disables Defender, runs C2 beaconing, gathers system info, and forces shutdowns; signs include unusual PowerShell activity, Node.js execution, and suspicious registry entries

Hackers are establishing a foothold on hotels and hospitality organizations across Europe and Asia, but no one really knows what for, at least not yet.