Intruder

The following video demonstrates the process of adding your web app and then adding Form-Based Authentication to this web app. 

<a href="https://help.intruder.io/en/articles/6050528-how-to-add-form-based-authentication" rel="nofollow noopener noreferrer" target="_blank">Written instructions for adding form-based auth</a>

<a href="https://help.intruder.io/en/articles/6051044-authenticated-web-application-scanning-faqs" rel="nofollow noopener noreferrer" target="_blank">Authenticated web application scanning FAQs</a>

- <a href="https://help.intruder.io/en/articles/6050528-how-to-add-form-based-authentication" rel="nofollow noopener noreferrer" target="_blank">Written instructions for adding form-based auth</a>
- <a href="https://help.intruder.io/en/articles/6051044-authenticated-web-application-scanning-faqs" rel="nofollow noopener noreferrer" target="_blank">Authenticated web application scanning FAQs</a>

And if you're interested in the other forms of authentication, they can be found below: 

<a href="https://help.intruder.io/en/articles/6050536-header-authentication" rel="nofollow noopener noreferrer" target="_blank">Header-Based Authentication</a>

<a href="https://help.intruder.io/en/articles/6050539-session-cookie-authentication" rel="nofollow noopener noreferrer" target="_blank">Cookie-Based Authentication</a>

<a href="https://help.intruder.io/en/articles/6050535-http-authentication" rel="nofollow noopener noreferrer" target="_blank">HTTP (Basic/Digest/NTLM) Authentication</a>

- <a href="https://help.intruder.io/en/articles/6050536-header-authentication" rel="nofollow noopener noreferrer" target="_blank">Header-Based Authentication</a>
- <a href="https://help.intruder.io/en/articles/6050539-session-cookie-authentication" rel="nofollow noopener noreferrer" target="_blank">Cookie-Based Authentication</a>
- <a href="https://help.intruder.io/en/articles/6050535-http-authentication" rel="nofollow noopener noreferrer" target="_blank">HTTP (Basic/Digest/NTLM) Authentication</a>

You can read more about this product here: 

<a href="https://www.intruder.io/blog/announcing-authenticated-web-application-scanning" rel="nofollow noopener noreferrer" target="_blank">https://www.intruder.io/blog/announcing-authenticated-web-application-scanning</a>

<a href="" rel="nofollow noopener noreferrer" target="_blank">https://www.intruder.io/web-application-vulnerability-scanner</a>

- <a href="https://www.intruder.io/blog/announcing-authenticated-web-application-scanning" rel="nofollow noopener noreferrer" target="_blank">https://www.intruder.io/blog/announcing-authenticated-web-application-scanning</a>
- <a href="" rel="nofollow noopener noreferrer" target="_blank">https://www.intruder.io/web-application-vulnerability-scanner</a>