Identifier / Programs / Linux and Unix
nm
List symbol names in object files. tldr-pages
GTFOBins file-read 1 documented command
How nm is abused
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 nm.
1 documented command
file-read unprivileged, with sudo, as SUID
The file content is treated as command line options and disclosed through error messages.
nm /path/to/input-fileThe 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 nm. The identifier reads the line that runs nm.
Everyday use
List global (extern) functions in a file (prefixed with T)
nm --extern-only path/to/file.oIdentifyList only undefined symbols in a file
nm --undefined-only path/to/file.oIdentifyList all symbols, even debugging symbols
nm --debug-syms path/to/file.oIdentifyNone of the 3 examples the identifier reads matches GTFOBins abuse or trips a Sigma process-creation rule.