Azure Application Gateway Web Application Firewall custom rules are now generally available
Updated: 12 June, 2019
The Application Gateway WAF team is announcing general availability of custom rules for WAF_v2. Custom rules allow our customers to create their own rules with IP/IP range or String-based matching conditions. For example, customers will be able to create rules which block requests from a specific IP range, or those matching a specific regular expression in the request’s header/cookie/URI/queryString/form elements. Users can also join multiple matching conditions into a single custom rule. In Vibranium, we will be augmenting custom rules to include Geo DB lists and IP reputation match conditions.
More details can be found here.