telnettelnet

telnet is a Unix living-off-the-land binary catalogued by the GTFOBins. Documented abuse functions: reverse-shell, shell. Mapped ATT&CK techniques (per LOLBAS / GTFOBins → MITRE crosswalk): T1059, T1071. Defenders should monitor execution of telnet under non-administrative or sudo contexts and alert when its arguments match the abuse-function signatures.