Zephyr Cryptominer Activity via Deceptive Path

Michael Francess@MFrancess

•updated Sep 3, 2025•5•1•74

Detects the creation of files in a deceptive directory 'C:\Windows \System32\' (with a space after 'Windows'). This technique is used by a Zephyr/XMRig cryptomining campaign to stage files for DLL search order hijacking of 'printui.exe'.