Forged Healthcare Sender DMARC/DKIM Fail Invoice Phishing
Detects incoming phishing emails that impersonate healthcare-related organizations. The detection identifies malicious activity by matching common healthcare-themed domain patterns in the From header, coupled with email authentication failures (DMARC or DKIM), and a mismatch between the envelope sender and the header From address. It also monitors for invoice-themed subject line lures commonly used in social engineering.
YARA-L
