Table 1 Outline of the paper

Introduction

The change in cybersecurity threat-landscape and associated threat actors over time, especially in malware perspective from traditional file-based malware to fileless malware. This section also includes the motivation and contribution of this survey.

Background of Fileless Malware

This section explains the definition of fileless malware and exploits mechanism with tools through which the initial infection of fileless malware.

Analysis of Fileless Malware Based on Their Persistent Techniques

This section have the analysis of the behavior of fileless malwares and classify them into their persistent mechanism to hide and execute into the targeted systems.

Detection Techniques for Fileless Malware

This section presents the prevention and detection systems are used to detect the malicious programs running in memory, leaving no physical file on the compromised system. The section presents the detection mechanism to detect these type of malicious programs.

Proposed Process Model for Incident Response

A novel investigative framework is proposed to break-down the analysis into simple steps for effective detection and analysis of root-cause of such attacks.

Research Challenges

The problems which are facing by the state-of-art investigation procedure in each step are explained in detail.

Conclusion

In this section, we concluded the paper.