Secureworks® Counter Threat Unit™ (CTU) researchers have tracked the activities of the BRONZE UNION threat group (also known as Emissary Panda, APT 27, and LuckyMouse) since 2013. CTU™ analysis suggests that BRONZE UNION is located in the People’s Republic of China. The threat group has historically leveraged a variety of publicly available and self-developed tools to gain access to targeted networks in pursuit of its political and military intelligence-collection objectives.

https://www.secureworks.com/research/a-peek-into-bronze-unions-toolbox