"Comment stuffing" in an HTML phishing attachment as a mechanism for evading AI-based detection?, (Fri, Jul 10th)

This report examines a SharePoint-themed credential-harvesting phishing message delivered with a large, double-encoded HTML attachment that contains a small malicious payload followed by substantial padding (repeated "X" characters) and \uXXXX encoding; header anomalies (missing Date, empty envelope sender, unusual X-Priority) indicate a homemade SMTP script, and credentials would be posted to a Formspark endpoint — the padding appears intended to evade or degrade AI/NLP-based email content scanners.