Evaluating Automatically Generated YARA Rules and Enhancing Their Effectiveness

Abstract

Emerging as a widely accepted technique for malware analysis, YARA rules due to its flexible and customisable nature, allows malware analysts to develop rules according to the requirements of a specific security domain. YARA rules can be automatically generated using tools, however, they may require post-processing for their optimisation, and may not be effective for the specific security domain. This compels the requirement to enhance automatically generated YARA rules and increase their effectiveness for malware analysis without increasing computational overheads. Reflecting on the above requirement, this paper initially evaluates automatically generated YARA rules using three YARA tools: yarGen, yaraGenerator and yabin. These tools are Python-based open-source tools used to generate YARA rules automatically utilising different underlying techniques. Subsequently, it proposes a method to enhance automatically generated YARA rules using a fuzzy hashing method. This proposed enhancement method can improve the effectiveness of YARA rules irrespective of the chosen YARA tool used to generate YARA rules, which is demonstrated through several experiments on samples of collected malware and goodware.

Publication DOI: https://doi.org/10.1109/SSCI47803.2020.9308179
Divisions: College of Engineering & Physical Sciences
Additional Information: © 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Event Title: 2020 IEEE Symposium Series on Computational Intelligence (SSCI)
Event Type: Other
Event Dates: 2020-12-01 - 2020-12-04
Uncontrolled Keywords: Fuzzy Hashing,Indicator of Compromise,IoC String.,Malware Analysis,Malware Analysis; YARA Rules; Fuzzy Hashing; yarGen,Ransomware,YARA Rules,yabin,yarGen, yaraGenerator,yaraGenerator; yabin; Ransomware; Indicator of Compromise; IoC String.,Artificial Intelligence,Computer Science Applications,Decision Sciences (miscellaneous)
ISBN: 978-1-7281-2548-0, 978-1-7281-2547-3
Last Modified: 20 May 2024 07:49
Date Deposited: 11 Jan 2021 12:22
Full Text Link:
Related URLs: https://ieeexpl ... ocument/9308179 (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Conference contribution
Published Date: 2021-01-05
Authors: Naik, Nitin (ORCID Profile 0000-0002-0659-9646)
Jenkins, Paul
Cooke, Roger
Gillett, Jonathan
Jin, Yaochu

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