Much of the fraudulent traffic was facilitated through botnets controlled by the Miuref ( Trojan.Miuref) and Kovter ( Trojan.Kotver) malware families. Powered by botnetsģve leveraged up to 700,000 infected computers and controlled over 1.7 million IP addresses at one point. These fake visitors generate click-through revenue from the ads for the attackers. It then drives fake traffic to these advertisements using infected computers. Symantec was involved in an industry group which assisted in the investigation by helping identify infrastructure used by the attackers.ģve specializes in creating fake versions of legitimate websites in order to carry advertisements. In the end, the specific research gaps present in the proposed process model are identified, and associated challenges are highlighted.An FBI-led law enforcement takedown dubbed Operation Eversion has led to the indictment of eight defendants and the seizure of infrastructure associated with the 3ve ad-fraud scam. We present a process model to handle fileless malware attacks in the incident response process. This survey makes a comprehensive analysis of fileless malware and their detection techniques that are available in the literature. To analyze such malware, security professionals use forensic tools to trace the attacker, whereas the attacker might use anti-forensics tools to erase their traces. The malware leverages the power of operating systems, trusted tools to accomplish its malicious intent. The fileless malware attack is catastrophic for any enterprise because of its persistence, and power to evade any anti-virus solutions. So, it does not use the file system, thereby evading signature-based detection system.

Fileless malware does not use traditional executables to carry-out its activities.

Abstract : With the evolution of cybersecurity countermeasures, the threat landscape has also evolved, especially in malware from traditional file-based malware to sophisticated and multifarious fileless malware.

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