The report claims that APT-C-39 targets included China’s energy and civilian aviation sectors, Internet service providers, scientific research universities and organizations, and various government agencies —which it does not name. The majority of the hacker group’s targets were located in Beijing, and also in China’s Zhejiang and Guangdong provinces.

According to Qihoo 360, APT-C-39 must be a “state-level hacking organization”, judging by the hacking tools that it used. These tools, such malware named by forensics experts as Grasshopper and Fluxwire, are believed to have been designed by the CIA. They were leaked in 2017 by the international whistleblower website WikiLeaks. American authorities have charged a former CIA programmer, Joshua Schulte, with leaking the malware. Schulte denies the charges.

The Qihoo 360 report also claims that the hours during which APT-C-39 hackers appear to be active correspond to the working hours of the East Coast of the United States. It also suggests that one goal behind the hacking operations against airline industry targets was to access the travel itineraries of senior figures in China’s political and industrial circles.