Skrull is a malware DRM, that prevents Automatic Sample Submission by AV/EDR and Signature Scanning from Kernel. It generates launchers that can run malware on the victim using the Process Ghosting technique. Also, launchers are totally anti-copy and naturally broken when got submitted.
It's a proof-of-concept of the talk of ROOTCON & HITCON 2021, check out Skrull Like A King: From File Unlink to Persistence :)
note that currently support only x64 PE now, due to the ghosting technique.