Identifier / Programs / Linux and Unix

wall

Write a message on the terminals of users currently logged in. tldr-pages

GTFOBins file-read 1 documented command

How wall is abused

documented by GTFOBins

file-read

--nobanner

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

1 documented command

from GTFOBins, each read by the identifier

file-read with sudo

The textual file is dumped on the current TTY (neither to stdout nor to stderr).

wall --nobanner /path/to/input-file

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 wall. The identifier reads the line that runs wall.

Everyday use

from tldr-pages, CC BY 4.0

Send a message

wall messageIdentify

Send a message to users that belong to a specific group

wall --group group_name messageIdentify

Send a message from a file

wall fileIdentify

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

wall

How wall is abused

1 documented command

Everyday use

Other programs abused for file-read