Identifier / Programs / Linux and Unix
fping
A more powerful ping which can ping multiple hosts. tldr-pages
GTFOBins file-read 1 documented command
How fping is abused
file-read
-fEach abuse is GTFOBins's category and the options and words it uses; the full write-up is on GTFOBins's page for fping.
1 documented command
file-read unprivileged, with sudo, as SUID
Each line is treated as an hostname and it's leaked as an error message.
fping -f /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 fping. The identifier reads the line that runs fping.
Everyday use
List the status of all hosts within a range
fping 192.168.1.{1..254}IdentifyList alive hosts within a subnet generated from a netmask
fping --alive --generate 192.168.1.0/24IdentifyList alive hosts within a subnet generated from an IP range and prune per-probe results
fping --quiet --alive --generate 192.168.1.1 192.168.1.254IdentifyNone of the 3 examples the identifier reads matches GTFOBins abuse or trips a Sigma process-creation rule.