Dynamic IDP Signature processing by fast elimination using DFA

TL;DR

This paper introduces a DFA-based fast elimination method for processing intrusion detection signatures, significantly improving the speed and efficiency of signature matching in IDPS.

Contribution

It proposes a novel DFA-based approach for rapid signature processing and elimination, enhancing IDPS performance over existing methods.

Findings

DFA-based method reduces signature processing time.

Efficient elimination of non-matching signatures.

Improved detection speed in IDPS systems.

Abstract

Intrusion Detection & Prevention Systems generally aims at detecting / preventing attacks against Information systems and networks. The basic task of IDPS is to monitor network & system traffic for any malicious packets/patterns and hence to prevent any unwarranted incidents which leads the systems to insecure state. The monitoring is done by checking each packet for its validity against the signatures formulated for identified vulnerabilities. Since, signatures are the heart & soul of an Intrusion Detection and Prevention System (IDPS), we, in this paper, discuss two methodologies we adapted in our research effort to improve the current Intrusion Detection and Prevention (IDP) systems. The first methodology RUDRAA is for formulating, verifying & validating the potential signatures to be used with IDPS. The second methodology DSP-FED is aimed at processing the signatures in less time with our proposed fast elimination method using DFA. The research objectives of this project are 1) To formulate & process potential IPS signatures to be used with Intrusion prevention system. 2) To propose a DFA based approach for signature processing which, upon a pattern match, could process the signatures faster else could eliminate it efficiently if not matched