How do I clear the cache on my WPAD?

Clearing the Cached WPAD Script

  1. Clear the Internet Explorer cache completely: ActiveX Controls, Cookies, History, etc..
  2. Close all instances of Internet Explorer.
  3. Delete all WPAD script instances. Open a command window as administrator and type the following command:
  4. Clear the DNS and Netbios name caches.

Where is WPAD stored?

dat files as “application/x-ns-proxy-autoconfig” mime types and the wpad. dat file should be located at the web site’s root directory. For example in an IIS configuration, you should do the following: Go to Start –> settings –> control panel –> administrative tools –> Internet Information Services (IIS) Manager.

How do I open a WPAD file?


  1. Open Internet Explorer, click on Tools > Internet Options > Connections > LAN Settings.
  2. Select Automatically detect settings.

What is a WPAD DAT file?

The content of Web Proxy Autodiscovery Protocol files ( wpad. dat ) is identical to that of proxy. pac files as they both contain the same few JavaScript lines that are used to configure your users’ browsers to use the Sophos Web Appliance as their web proxy. The difference is that WPAD files are renamed to wpad. dat .

What is wpad vulnerability?

WPAD Attack Details The expansion of Top Level Domain names in recent years has made it possible to register domains with the . name TLD, so what may have once been a safe default choice has become subject to a WPAD Name Collision Vulnerability.

How do I create a DHCP wpad?

To configure WPAD using DHCP, open the DHCP management console, right-click IPv4, then choose Set Predefined Options…. Select the DHCP Standard Options class and choose Add…. Enter WPAD for the name, select String for the data type, specify252 for the code, and enter Web Proxy Auto Discovery for the description.

Is WPAD still used?

WPAD is documented in an INTERNET-DRAFT which expired in December 1999. However, WPAD is still supported by all major browsers.

Why is WPAD bad?

If an attacker owns the domain that is used by the internal router and the client has WPAD enabled, the attacker can redirect the traffic of internet applications using system proxy settings through the attacker’s proxy.

What is http WPAD domain name?

The Web Proxy Auto-Discovery (WPAD) Protocol is a method used by clients to locate the URL of a configuration file using DHCP and/or DNS discovery methods. Once detection and download of the configuration file is complete, it can be executed to determine the proxy for a specified URL.

How do I disable wpad from home?

Method 1—Disable WPAD by disabling WINS/NetBT name resolution:

  1. Open Network Connections.
  2. Click the Local Area Connection to be statically configured, and then from the File menu, click Properties.
  3. In the list of components, click Internet Protocol (TCP/IP), and then click Properties.