check_ssl_certcheck_ssl_cert

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