The operation is named after the specific archive file, Ghost Clients.zip , which served as a central delivery vehicle for a sophisticated multi-stage malware infection chain. 1. Delivery and Initial Access

: The email contained a link to a cloud storage service (like Google Drive or OneDrive) or an attachment titled Ghost Clients.zip .

: If the target was "vetted," the server delivered the Ghost Client —a modular backdoor designed for long-term persistence. 3. Capabilities of the "Ghost Client"

The attack typically began with emails directed at high-value targets in South Korea, including government officials, academics, and defense contractors.

: The C2 servers used domains that followed Kimsuky’s historical naming conventions.

It serves as a reminder of the persistent threat posed to the Korean Peninsula's digital infrastructure and the continued refinement of social engineering techniques used by APT (Advanced Persistent Threat) groups.

Once a user executed the LNK file, a complex, scripted infection process was triggered to bypass security software: