In the summer of 2005, Tan Dailin was a 20-year-old grad student at Sichuan University of Science and Engineering when he came to the attention of the People’s Liberation Army of China.
Tan was part of a burgeoning hacker community known as the Honkers—teens and twentysomethings in late-’90s and early-’00s China who formed groups like the Green Army and Evil Octal and launched patriotic cyberattacks against Western targets they deemed disrespectful to China. The attacks were low-sophistication—mostly website defacements and denial-of-service operations targeting entities in the US, Taiwan, and Japan—but the Honkers advanced their skills over time, and Tan documented his escapades in blog posts. After publishing about hacking targets in Japan, the PLA came calling.
Tan and his university friends were encouraged to participate in a PLA-affiliated hacking contest and won first place. The PLA invited them to an intense, monthlong hacker training camp, and within weeks Tan and his friends were building hacking tools, studying network infiltration techniques, and conducting simulated attacks.
The subsequent timeline of events is unclear, but Tan, who went by the hacker handles Wicked Rose and Withered Rose, then launched his own hacking group—the Network Crack Program Hacker (NCPH). The group quickly gained notoriety for winning hacking contests and developing hacking tools. They created the GinWui rootkit, one of China’s first homegrown remote-access backdoors and then, experts believe, used it and dozens of zero-day exploits they wrote in a series of “unprecedented” hacks against US companies and government entities over the spring and summer of 2006. They did this on behalf of the PLA, according to Adam Kozy, who tracked Tan and other Chinese hackers for years as a former FBI analyst who now heads the SinaCyber consulting firm, focused on China.
Tan revealed online at the time that he and his team were being paid about $250 a month for their hacking, though he didn’t say who paid or what they hacked. The pay increased to $1,000 a month after their summer hacking spree, according to a 2007 report by former threat intelligence firm VeriSign iDefense.
At some point, Tan switched teams and began contracting for the Ministry of State Security (MSS), China’s civilian intelligence agency, as part of its notorious hacking group known as APT 41. And in 2020, when Tan was 36, the US Justice Department announced indictments against him and other alleged APT 41 members for hacking more than 100 targets, including US government systems, health care organizations, and telecoms.
Tan’s path to APT 41 isn’t unique. He’s just one of many former Honkers who began their careers as self-directed patriotic hackers before being absorbed by the state into its massive spying apparatus.
Not a lot has been written about the Honkers and their critical role in China’s APT operations, outside of congressional testimony Kozy gave in 2022. But a new report, published this month by Eugenio Benincasa, senior cyberdefense researcher at the Center for Security Studies at ETH Zürich university in Switzerland, expands on Kozy’s work to track the Honkers’ early days and how this group of skilled youths became some of China’s most prolific cyberspies.