This blog entry can also be considered as a survey. Along with my other computers I own a Sony Vaio also. It came to my attention that the Windows(R) installation that comes with the Vaio laptop contains among others an interesting file. It is an extra screensaver.
This screensaver resides at
This screensaver is not listed in the Screen Savers list under your Display Properties window.
It is there to be activated after a preconfigured timeout whenever you have your laptop waiting at the Windows Welcome screen without logging into your account. The video that is played when this screensaver is activated is:
C:\Program Files\Sony\VAIO Original Screen Saver\VAIO Scene SD\VAIO Scene 640×400 W.wmv
Well, you probably wonder what this has to do with security. The Windows(R) protects (in a way) the screensavers which are shipped by default with the Operating System. In this case, I managed to make my Vaio screensaver to execute whatever I wanted when activated. Because this screensaver is not expected to be there and it is not in the screensavers list, it is difficult to notice that it has been modified and obviously doesn’t do what it supposed to do.
Let me know if you can locate the same file within your Vaio laptop.