WebDir is an adware spyware that works as an Internet Explorer add-on designed to modify certain web site addresses to include a special ID, which belongs to the pest's author. Every time the user visits a particular web site, WebDir sends him to a new address that allows the spyware's author to gain financially. WebDir doesn't have any additional functionality. It runs every time the user launches Internet Explorer.
pxwma.dll
HKEY_CLASSES_ROOTinterface.InterfaceOBJHKEY_CLASSES_ROOTinterface.InterfaceOBJ.1HKEY_CLASSES_ROOTAppIDpxwma.DLL58F07DD3-924D-4141-BC74-299F523A95F1B1317C08-617A-435D-A24F-A930F4540696FAC55B9F-8F6A-4A41-AE16-36845D4679B2