Explaining malware which resides only in RAM
Unlike traditional malware, which typically involves downloading and running an executable file, fileless malware operates in the system’s memory (RAM) and often exploits legitimate tools (like PowerShell, WMI, or Windows Registry) and scripts already present on the target system (such as JavaScript or VBScript).
This means that fileless malware has unique attack vectors, installation, persistence and execution mechanisms. Here’s how malware which resides in RAM compares to traditional malware:
