Identifier / Programs / Linux and Unix
arj
GTFOBins file-write 2 documented commands
How arj is abused
file-write
output-file
Each abuse is GTFOBins's category and the options and words it uses; the full write-up is on GTFOBins's page for arj.
2 documented commands
file-read unprivileged, with sudo, as SUID
The .arj suffix will be added to output-file.
arj a /path/to/output-file /path/to/input-file
arj p /path/to/output-filefile-write unprivileged, with sudo, as SUID
The .arj suffix will be added to x.
echo DATA >output-file
arj a x output-file
arj e x /path/to/output-dir/None of the 2 commands the identifier reads trips a Sigma process-creation rule. These commands are, 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 arj. The identifier reads the line of each that runs arj.