AiTM token replay: new-IP sign-in within 10m of watchlisted phishing-domain visit
Detects signs of Adversary-in-the-Middle (AiTM) token or session replay attacks by correlating device browsing activity on known phishing domains with subsequent user sign-in events. The rule triggers if a sign-in occurs within 10 minutes of a phishing-domain visit from a different, non-corporate IP address, or if a single session exhibits multiple distinct non-corporate IP addresses within that same window.
Microsoft Sentinel (KQL)
