https://qooah.com/2012/04/02/%e5%ae%89%e5%85%a8%e9%a0%90%e8%ad%a6%ef%bc%81dkfbootkit-%e8%83%bd%e5%9c%a8%e7%84%a1%e5%bd%b1%e4%b8%8b%e5%ae%89%e8%a3%9d%e6%83%a1%e6%84%8f%e7%a8%8b%e5%bc%8f%ef%bc%8c%e5%80%8b%e4%ba%ba%e8%b3%87-2/