Photo ZIP Campaign: Calendly/Google Auth Laundering Phishing to Hospitality
This rule detects potentially malicious emails that leverage Calendly as a lure. It looks for emails that pass standard authentication (SPF/DKIM/DMARC) but contain suspicious elements such as URLs redirecting to Calendly or Google, subject lines related to common social engineering themes (complaints, health inspections, etc.), or the presence of ZIP attachments that match common photo/image naming patterns.
Microsoft Sentinel (KQL)
