Open-source network recon tool tcpcat released with eBPF and WASM detection

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Developer NycolazSec has released tcpcat, an open-source network reconnaissance tool written in Go. The software enables comprehensive network enumeration, service fingerprinting, and vulnerability correlation using databases like Vulners API. For high-performance scanning, it optionally leverages eBPF and AF_XDP on modern Linux kernels to process up to a million packets per second per core. The tool is licensed under AGPL-3.0 for open-source use, with a commercial option for proprietary embedding, and is intended strictly for authorized security testing and network administration.

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