User Execution - Payload Download After Redirect Chain
This rule detects a payload download after a redirect chain, which is a common technique used in user execution attacks. It specifically looks for HTTP responses containing a redirect pattern in the HTTP referer and then checks for the 'MZ' magic bytes (indicating a Windows executable) in the file data within a short depth. This suggests a user being redirected and then automatically downloading a malicious executable.
Suricata
