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chkrootkit vs Lynis: catalog facts
chkrootkit	Lynis
Free Free to download and use.	Free The open-source software is available without a license fee. Hosting, hardware and…
Linux, Command line	macOS, Linux, Command line
Checks for many known rootkits and trojaned binaries Detects deleted login records and promiscuous interfaces	Checks local configuration and reports suggested improvements.
Command-line only Runs on the system it checks, so a thorough rootkit could hide from it	Suggestions require review for the particular system and workload.
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-3.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.