Identifier / Programs / Linux and Unix

zgrep

Grep text patterns from files within compressed files. tldr-pages

GTFOBins file-read 1 documented command

How zgrep 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 zgrep.

from GTFOBins, each read by the identifier

file-read unprivileged, with sudo

grep '' /path/to/input-file

This command is 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 zgrep. The identifier reads the line that runs zgrep.

from tldr-pages, CC BY 4.0

Grep a pattern in a compressed file (case-sensitive)

zgrep pattern path/to/compressed_fileIdentify

Print 3 lines of Context around, Before, or After each match

zgrep --context 3 pattern path/to/compressed_fileIdentify

Grep a pattern in a compressed file (case-insensitive)

zgrep --ignore-case pattern path/to/compressed_fileIdentify

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