# ClamAV * Can be started with custom database or yara rules ## Hashes Database * `*.hdb` is a database containing hashes. Can be customized and scanned against ## Yara Rules * Custom `*.yara` rules can be set. An example ```yara rule example { meta: author = "Gabe Newell" description = "Look at how the Yara rule works with ClamAV" strings: $string = "a-string-found-inside-the-malicious-binary" $file_signature = "magic-number-in-ascii" condition: #file_signature at 0 and $string } ```