What is Fileless Malware | Definition and Meaning

Fileless Malware techniques include attacking a victim by utilizing existing tools such as PowerShell and Windows Management Instrumentation and through legitimate living off the land binaries, libraries, and scripts to attack a user in-memory. Fileless malware implementing fileless attacks do not write to the hard drive and exist only in-memory, making fileless malware detection and fileless malware analysis difficult for AV software. Fileless malware may also be called memory resident malware or RAM malware.

Fileless Malware Synonyms

Memory Resident Malware.