I'm searching for a posibility to bypass the "Firewall" for 3-4 days. I've tried everything I know, so I ask here for a answer.

1. We have no admin rights and the OS is Windows Vista
2. There is an HTTP Proxy with NTML Authentication (only way to access the internet)
3. It requires a username and password
4. We use smart cards, in fact I have only a user number and a pin.
5. Port 80 and 443 are open -> I have an SSH server at home which is listening on port 443

The problem is that I need this proxy to connect to anything.

Internet access only works in IE, Chrome, Firefox when I set the proxy settings to "use system proxy settings", "proxy-autoconfig (proxy.pac)" or when I enter the proxy inside the proxy.pac file. However I can't understand where they take the username and password which the Proxy requires.

What I've tried was using cntlm to connect to the proxy with authentication (altought I have no PW and username) and PuTTY to create the SSH tunnel over port 443 whit the SOCKS Proxy which I've created with cntml.

I've never found some SSH client which includes a "use system proxy settings" function.