Identifier / Programs / Linux and Unix

elvish

Expressive programming language and a versatile interactive shell. tldr-pages

GTFOBins file-read, file-write 3 documented commands

How elvish is abused

documented by GTFOBins

file-read

-c

file-write

-c

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

3 documented commands

from GTFOBins, each read by the identifier

file-read unprivileged, with sudo, as SUID

elvish -c 'print (slurp </path/to/input-file)'

Identify

file-write unprivileged, with sudo, as SUID

elvish -c 'print DATA >/path/to/output-file'

Identify

shell unprivileged, with sudo, as SUID

elvish

Identify

None of the 3 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 elvish. The identifier reads the line of each that runs elvish.

Everyday use

from tldr-pages, CC BY 4.0

Start an interactive shell session

elvishIdentify

Execute specific commands

elvish -c "echo 'elvish is executed'"Identify

Execute a specific script

elvish path/to/script.elvIdentify

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

elvish

How elvish is abused

3 documented commands

Everyday use

Other programs abused for file-read