China-Linked APT Expands Arsenal With New Leash Backdoors
China-linked APT UAT-7810 developed three new backdoor variants (LongLeash, DogLeash, JarLeash) to weaponize 1000+ compromised SOHO routers as a relay network for persistent espionage and lateral movement. The operational relay box (ORB) infrastructure enables long-term access and compartmentalizes