Fileless Malware

DMCXBLUE

Turning ourselves into Ghosts

Hunting for a fileless threat can be a tedious and labor-intensive task for any analyst. It is, most often than not, extremely time-consuming and requires a significant amount of data gathering. On top of that, the traditional tools, methods, and defenses seem to be less effective when dealing with these almost invisible threats. Threat actors are frequently using attack techniques that work directly from the memory or using legitimate tools or services pre-installed in the system to achieve their goals (Trend Micro, 2017). It is a popular technique among targeted attacks and advanced persistent threats (APT), and now it has been adopted by conventional malware such as Trojans, ransomwares, and even the most recent emerging threat – cryptocurrency miners. In some incidents, searching for a malicious file that resides in the hard drive seem to be insufficient. This study explores the different variations of fileless…

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