Hackers are establishing persistence in hospitality and hotels by posing as guests with poisoned ZIP archives, but no…

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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.

This is according to Microsoft Threat Intelligence, who recently published a new report saying that since April, it’s been tracking an active phishing campaign. In this campaign, the unnamed attackers target front desk, reception, and reservations staff with emails about guest complaints, room conditions, bedbug infestations, booking inquiries, and similar.

The messages, sent in different languages (Danish, Dutch, Japanese), are not distributed...

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