Giddy up for yet another type of trojan! A Microsoft representative said that this new trojan can nuke the boot process of Windows. Instead of loading the operating system, all you get is a ASCII line in the middle of your monitor (is not even ASCII art, which can be cool). “A recently discovered backdoor sample (detected as Backdoor:Win32/Yonsole.A) can accept and execute a command from a remote server to modify the Master Boot Record (MBR) on the affected machine”, Chun Feng from Microsoft said yesterday.

This virus resembles the modus operandi of a timeless classic named “Stoned” which used to do the same thing on DOS back in the day. This virus can affect almost all types of popular Windows versions(including XP, VISTA and Windows 7) by dropping a DLL into your C:\Windows\System32 (yes, this folder has an important purpose, DO NOT erase it or fill it up with facebook screenshots of girls you don’t know).

But don’t worry too much about it, as the virus is around for almost a month and most antiviruses are able to cope with it. Microsoft claims that the alert status for this virus is “severe” and that you should update all of your software (ehem), stop downloading pirated software (double ehem) and not click unsafe links to web pages (some of the nicest things I’ve seen on the web are on unsafe sites, how can I not click on them?).



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