The Packet Squirrel Mark II is a matchbook-sized Ethernet implant that sits inline between a target device and the network. Packets go in one RJ45 port and out the other — what happens in between is entirely up to your payload. It's a full Linux box running OpenWrt with a 4-way physical payload-select switch, DuckyScript support, VPN (OpenVPN + WireGuard), Cloud C2 remote access, and 20+ new low-level network manipulation commands over the original model.