About+blank

 About Blank

If you get a web page that says "about:blank" when you open Internet Explorer, this usually happens because your computer was infected by malware called TrojanSpy:Win32/Banker. It resets the homepage to "about:blank" on XP, Windows 2000 and Windows Server 2003 computers and will also shut down Windows Defender if you have it running. You should make sure you have good antivirus and anti-malware software installed and that their definitions are up to date.

The origins of this page :- about: is a URI addressing scheme in web browsers to display built-in functions. About:blank is the address to display a blank HTML document. The malware simply uses this address that's recognized by most browsers and resets your home page to the address.  