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The Chinese nation-state actor known as Mustang Panda has been linked to a new set of sophisticated and targeted attacks aimed at European foreign affairs entities since January 2023.

An analysis of these intrusions, per Check Point researchers Itay Cohen and Radoslaw Madej, has revealed a custom firmware implant designed explicitly for TP-Link routers.

“The implant features several malicious components, including a custom backdoor named ‘Horse Shell’ that enables the attackers to maintain persistent access, build anonymous infrastructure, and enable lateral movement into compromised networks,” the company said.

“Due to its firmware-agnostic design, the implant’s components can be integrated into various firmware by different vendors.”

images from Hacker News