STAC4713/STAC3725 QEMU SSH Tunnel via hostfwd Port-Forwarding

Ibrahim Saud@tektrix

•updated Jun 30, 2026•0•0•4

Detects the execution of QEMU processes configured with specific network redirection flags (hostfwd) targeting standard SSH ports, or utilizing suspicious file paths (e.g., .db, .dll) as virtual disk backing files. This behavior is indicative of adversaries utilizing QEMU to establish covert reverse SSH tunnels or staging malicious artifacts within virtualized environments.