Abstract: In the era of internet there are various cyber-attacks which are easily performed by the intruder to gain unauthorized access of our confidential resources. Mainly cyber-attacks are categorized into 2 types as: network based and host based attacks. These both type of attacks are very dangerous because these steal or monitor our private data. So, we need to detect and prevent these types of attacks with very high accuracy rate. There are various techniques for detection of these attacks such as signature or pattern based attack detection (static analysis), anomaly based attack detection (static analysis), sandboxing based attack detection (dynamic analysis). These all techniques are better for detection of one kind (either network or host based) of attack and good for another one. But these are not the best for detection of both types of attacks. So, we introduce a new semi supervised hybrid protection for all of the attacks which gives us a very high accuracy and feasibility rate from earlier protection mechanism.