Disk Exhaustion via Fsutil

wakasa smoky@wakasadb3

•updated Apr 28, 2026•3•0•308

Detects the usage of the 'fsutil' command line tool to create a massively sized file explicitly named 'DiskFillerFile' to exhaust available disk space. This technique was observed in the Lotus Wiper destructive campaign to corrupt system operations and complicate recovery efforts.