Ceplin Command Identifier

Identifier / Programs / Linux and Unix

check_ssl_cert

GTFOBins shell 1 ATT&CK technique 1 documented command

Opens the identifier with your command. It is read in your browser and sent nowhere.

How check_ssl_cert is abused

documented by GTFOBins

shell T1059.004 Command and Scripting Interpreter: Unix Shell

--grep-bin
-H

Each abuse is GTFOBins's category and the options and words it uses; the full write-up is on GTFOBins's page for check_ssl_cert.

1 documented command

from GTFOBins, each read by the identifier

shell unprivileged, with sudo

The shell will be invoked multiple times.

echo 'exec /bin/sh 0<&2 1>&2' >/path/to/temp-file
chmod +x /path/to/temp-file
check_ssl_cert --grep-bin /path/to/temp-file -H x
Identify

The command the identifier reads trips no Sigma process-creation rule. This command is, with GTFOBins’ notes, from GTFOBins, at commit acd524623f9c of 2026-05-27, under the GPL-3.0, with no warranty. Changed: Markdown is shown formatted. The source is in lolbas-gtfobins-commands.json.gz, and the full entry is on GTFOBins’s page for check_ssl_cert. The identifier reads the line that runs check_ssl_cert.

What detects it

Sigma process creation rules
T1059.004Command and Scripting Interpreter: Unix Shell