Identifier / Programs / Linux and Unix
check_log
GTFOBins file-read, file-write 2 documented commands
How check_log is abused
file-read
-F-Ofile-write
-F-OEach abuse is GTFOBins's category and the options and words it uses; the full write-up is on GTFOBins's page for check_log.
2 documented commands
file-read unprivileged, with sudo
check_log -F /path/to/input-file -O /dev/stdoutfile-write unprivileged, with sudo
check_log -F /path/to/input-file -O /path/to/output-fileNone of the 2 commands the identifier reads trips a Sigma process-creation rule. These commands are 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_log. The identifier reads the line of each that runs check_log.