Identifier / Programs / Linux and Unix

hd

Display file contents in hexadecimal, decimal, octal, or ASCII. Useful for inspecting dump file, binary data, or debug output. tldr-pages

GTFOBins file-read 1 documented command

How hd is abused

documented by GTFOBins

file-read

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

from GTFOBins, each read by the identifier

GTFOBins documents hd with the commands of hexdump.

file-read unprivileged, with sudo, as SUID

The output is actually an hex dump.

hd /path/to/input-file

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 hd. The identifier reads the line that runs hexdump.

from tldr-pages, CC BY 4.0

Print the hexadecimal representation of a file, replacing duplicate lines by *

hexdump path/to/fileIdentify

Display the input offset in hexadecimal and its ASCII representation in two columns

hexdump -C path/to/fileIdentify

Display the hexadecimal representation of a file, but interpret only a specific number of bytes of the input

hexdump -C -n number_of_bytes path/to/fileIdentify

None of the 3 examples the identifier reads matches GTFOBins abuse or trips a Sigma process-creation rule.