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A suspected Chinese threat actor tracked as UNC3886 uses publicly available open-source rootkits named 'Reptile' and 'Medusa' to remain hidden on VMware ESXi virtual machines, allowing them to conduct credential theft, command execution, and lateral movement. [...]
UNC3886 Targeted Edge Devices for Persistence, Mandiant SaysA suspected Chinese hacking group used open-source rootkits to ensure persistence on compromised edge devices such as VMware ESXi servers for espionage campaigns, Google Mandiant said. The hacking group, which Mandiant tracks as UNC3886, is likely a Chinese threat group hacking for Beijing.