Respounder
Respounder is a network detection tool designed to identify the presence of Responder tools within a network environment. The tool operates by sending LLMNR (Link-Local Multicast Name Resolution) name resolution requests for fabricated hostnames that do not exist in the network infrastructure. This technique forces any active Responder instances to reveal themselves by responding to these queries. The tool supports multiple operating systems including 32-bit and 64-bit Linux distributions, OS X, and Windows systems. It can be deployed as pre-compiled binaries or built from source code using Golang without requiring additional dependencies. Respounder functions as a defensive security measure, helping network administrators and security professionals detect potentially malicious Responder tools that may be used for credential harvesting or man-in-the-middle attacks within their network perimeter.
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