ClamAV

https://www.clamav.net/

ClamAV is an open-source antivirus engine for detecting trojans, viruses, malware & other malicious threats.

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The Standard

ClamAV is the open-source standard for mail gateway-scanning software.

High Performance

ClamAV includes a multi-threaded scanner daemon, command-line utilities for on-demand file scanning and automatic signature updates.

Versatile

ClamAV supports multiple file formats and signature languages, as well as file and archive unpacking.

Open-source

Access to ClamAV versions that work with your operating system.