[RTA] Add RTA for Default Telnet Port Connection#31
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eric-forte-elastic merged 3 commits intomainfrom Feb 25, 2026
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Aegrah
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Feb 19, 2026
imays11
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Mikaayenson
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couple nits, otherwise lgtm
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Summary
This PR adds an RTA for the SIEM rule "Accepted Default Telnet Port Connection" (
34fde489-94b0-4500-a76f-b8a157cf9269) to resolve theno_rtacoverage/validation failures in elastic/detection-rules #5737.The RTA creates an accepted TCP connection to localhost:23 and supports Windows, Linux, and macOS via a threaded listener + client.