autoProxy doesn't work with proxy requiring Kerberos / NTLM authentication

[AndreasAckermannTSystems]

Windows Version

Microsoft Windows [Version 10.0.22621.2428]

WSL Version

2.0.9.0

Are you using WSL 1 or WSL 2?

• [X] WSL 2
• [ ] WSL 1

Kernel Version

5.15.133.1-1

Distro Version

Ubuntu 22.04

Other Software

Corporate proxy requiring Kerberos / NTLM authentication

Repro Steps

1. Be inside a corporate network environment with a proxy that requires Kerberos / NTLM Authentication
2. Configure WSL with the following .wslconfig:

   
   [wsl2]

networkingMode = mirrored firewall = true autoProxy = true

3. Run `apt-get update` or `curl` for any webpage

### Expected Behavior

Proxy is configured and authenticated with automatically, `apt-get update` and `curl` work out-of-the-box.

### Actual Behavior

`apt-get update` gives me errors like:

Err:1 http://security.ubuntu.com/ubuntu jammy-security InRelease 407 authenticationrequired [IP: 10.XXX.XXX.XXX 8080]

`curl`ing for any webpage, I receive a reply from the proxy containing the following headers and a message in the HTML page that I am not authenticated via Kerberos / NTLM:

< Proxy-Connection: Keep-Alive < Proxy-Authenticate: Negotiate < Proxy-Authenticate: NTLM

### Diagnostic Logs

_No response_

[nvtienanh]

Me too