The middlemen of cyber espionage. [Research Saturday]

Today we have Damon Rouse, Threat Intelligence from Lumen's Black Lotus Labs, discussing their work on "The infrastructure quartermaster: inside a China-nexus state enablement model." Black Lotus Labs identified a China-nexus cyber infrastructure provider, dubbed a “quartermaster,” that supplies reconnaissance, proxy routing, and obfuscation services to Chinese cyber espionage actors.
Its interconnected systems, including QScan and Fast Labyrinth, help identify high-value targets, conceal malicious traffic, and support potential exploitation of government, military, research, and critical infrastructure networks. Researchers warn that this shared infrastructure makes traditional IP-based defenses less effective and recommend following CISA and NCSC guidance, reducing external attack surfaces, and keeping routers, firewalls, and IoT devices updated.
The research and executive brief can be found here:
The infrastructure quartermaster: inside a China-nexus state enablement model
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