There doesn't seem to be a filter for this vulnerability at this time so I am trying to write one. By default the program uses its name in the agent string;
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727) Havij
I am trying to create a vulnerability filter that looks for "Havij" in the agent string, my belief based on what I have read is the filter should read something like pattern-match http-req-headers, where I am stuck though is the value, since it has to be at least 7 bytes, is there a way to pad "Havij" so it meets the requirement? Or am I going about this wrong.
In this case you don't have to create a Custom Vulnerability Signature but a Custom Application Signature, in the way you have told and creating a security policy with the deny action for that application.
You have to use "http-req-headers" and insert "Havij" as pattern match. This should works.
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