Thursday, May 11, 2006

System Management Mode Article

I was reading this article on about using System Management Mode to circumvent OS security. At first, when I was reading the article, this sounded a lot like switching to Real Mode, which isn’t all that interesting. However, I came across the actual paper here that explained this a little more in depth. I was unaware that there were more operating modes than Real and Protected mode, apparently there is also a Virutal-8086 mode and the System Management Mode mentioned in the article. Interesting stuff.

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