Tonto Team
Intelligence Profile
[Tonto Team](https://attack.mitre.org/groups/G0131) is a suspected Chinese state-sponsored cyber espionage threat group that has primarily targeted South Korea, Japan, Taiwan, and the United States since at least 2009; by 2020 they expanded operations to include other Asian as well as Eastern European countries. [Tonto Team](https://attack.mitre.org/groups/G0131) has targeted government, military, energy, mining, financial, education, healthcare, and technology organizations, including through the Heartbeat Campaign (2009-2012) and Operation Bitter Biscuit (2017).(Citation: Kaspersky CactusPete Aug 2020)(Citation: ESET Exchange Mar 2021)(Citation: FireEye Chinese Espionage October 2019)(Citation: ARS Technica China Hack SK April 2017)(Citation: Trend Micro HeartBeat Campaign January 2013)(Citation: Talos Bisonal 10 Years March 2020)
Threat Analysis
Tonto Team is a advanced-sophistication threat actor attributed to China, engaged in cyber operations with a primary motivation of espionage.
The group's espionage-oriented operations suggest a state-sponsored or state-aligned mandate, typically focused on stealing intellectual property, government secrets, or military intelligence. Targets are usually selected for strategic value rather than financial gain.
Classified as an advanced threat actor, Tonto Team likely develops or acquires zero-day exploits, employs custom malware toolchains, and demonstrates long-term persistence capabilities — hallmarks of a well-resourced operation consistent with nation-state backing.
Known Campaigns
Tonto Team is a espionage threat actor attributed to China. Tonto Team is a Chinese-speaking APT group that has been active since at least 2013. They primarily target military, diplomatic, and infrastructure organizations in Asia and Eastern Europe. The group has been observed using various malware, including the Bisonal RAT and ShadowPad...