This work proposes a CAPTCHA –based Intrusion Detection Model with a redirector in order to identify the intelligent spywares that are capable of breaking CAPTCHA in IPS. To increase and maintain the security in a Network the combination of IDS with CAPTCHA, IPS and a dummy Honeypot can be employed. As discovered in the existing systems CAPTCHA was not employed in IDS to detect spywares capable of breaking and having access to the system. Different techniques have been adopted by different researchers using IDS, IPS and honeypot to protect their system against illegal attacks. In order to detect illegal access of the web from the intruder, IDS, IPS can be implemented with the use of honeypot to track the IP address, location and country or region of the attacker in order to block the attacker from accessing the system. Intrusion Prevention System (IPS) is a tool that is used to prevent spywares from getting intrusion into a system and one of the techniques used in IPS is Completely Automated Public Turning test to tell Computers and Human Apart (CAPTCHA). Intrusion Detection systems (IDS) are an essential element for Network Security Infrastructure and play an important role in detecting large number of attacks.
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