How to change server request and response for Flash application (HTTPS, XHR, POST)?

Question

linux

The Flash application makes a request to the server. You need to change the server response so that the application receives an already modified response. Accordingly, the possibility of a pause is also needed so that you can compose the desired answer.

I tried the Tamper Chrome extension , a more or less convenient thing, but for some reason filtering by requests does not work there (you need a specific URL because there is a lot of garbage), and most importantly, you can’t change the response body :(

What other options are there?

Answer 1

I would try to set up a proxy (God what I'm talking about, I haven't tried it myself) to analyze the traffic.
1. You need to know what is being sent and request spoofing. https://www.owasp.org A good proxy. In chrome, and in any, you can configure traffic through a proxy. This program stores the entire history of requests and you can send the request you need with a body change in RAW mode.
2. Next, I would try to resolve the server ip through OpenServer to a local server with the same domain name, the server will already resolve to your local server and you can know in advance what answer you expect to send the necessary commands to the local FLASH application.