Botnet Rental Service Access Detected

This rule detects access to websites or services that are commonly associated with botnet rental, stresser, or DDoS-for-hire services. It specifically looks for HTTP requests where the host header contains keywords like 'booter', 'stresser', or 'ddoser' (case-insensitive). This indicates a potential policy violation where an internal user might be attempting to utilize or research such services.