By: [Ravie Lakshmanan](/p/authors.html) A previously undocumented espionage tool has been deployed against selected governments and other critical infrastructure targets as part of a long-running espionage campaign orchestrated by China-linked threat actors since at least 2013. Broadcom’s Symantec Threat Hunter team characterized the backdoor, named Daxin, as a technologically advanced malware, allowing the attackers to carry out a variety of communications and information-gathering operations aimed at entities in the telecom, transportation, and manufacturing sectors that are of strategic interest to China. “Daxin malware is a highly sophisticated rootkit backdoor with complex, stealthy command-and-control (C2) functionality that enables remote actors to communicate...