From thehackernews.com
Threat actors have been observed leveraging the QEMU open-source hardware emulator as tunneling software during a cyber attack targeting an unnamed “large company” to connect to their infrastructure.
While a number of legitimate tunneling tools like Chisel, FRP, ligolo, ngrok, and Plink have been used by adversaries to their advantage, the development marks the first QEMU that has been used for this purpose.
“We found that QEMU supported connections between virtual machines: the -netdev option creates network devices (backend) that can then connect to the virtual machines,” Kaspersky researchers Grigory Sablin, Alexander Rodchenko, and Kirill Magaskin said.