How to in Windows 2 0 0 3 to give the login password-vulnerability warning-the black bar safety net

In all NT systems, there are several ways you can get the login user's password. I know of three methods can achieve the purpose. 1. hook the winlogon in the several function, the Internet also has this type ofprogram, called winlogonhijack items in the rootkit. com has to offer, but that project...