The Return of Ghost Emperor’s Demodex

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External References

• https://www.sygnia.co/
• https://otx.alienvault.com/

Description

This document examines a recent infection chain utilized by the sophisticated China-nexus threat group GhostEmperor. It delves into the multi-stage loading process of the Demodex rootkit, which incorporates several obfuscation techniques and loading schemes. The analysis covers various components, including a batch file, PowerShell script, and malicious service DLL, which ultimately loads a reflective loader and the core implant. The core implant handles command-and-control communication and installs the Demodex kernel rootkit, leveraging Cheat Engine's signed driver to bypass driver signature enforcement.

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