Research And Implementation Of Several Problems In Security System Of Preventing Information Leak

As one kind of general platform for sharing resources, the LAN(local area network) is widely used nowadays. The popularization of LAN has provided the great advantage for making good using of resources reasonably and enhancing the efficiency in office. But at the same time, the problem of data security is also prominent more and more in the LAN, especially for the validated users of LAN who have no intention to divulge the sensitive data or steal on purpose.To solve LAN security problems and satisfy demands of our clients, we develop clipboard monitor technology, guarantee system stability technology, and prevent sensitive information out of internet technology and security share of sensitive information in LAN basing on the first version of security system of preventing information leak. All of the four new functions make security the system of preventing information leak better. The second version of security system of preventing information leak has better expansibility and stability than the first one.The article has four parts which respectively describe in detail from background to technology method. For inline hook, remote thread inject method, process monitor, file filter driver, network connect monitor technology, we have brought forward how to implement from project point of view, which will be introduced in detail in the article.In the end, more work in the future will be point out.