Scan uploaded files with ClamAV or run system commands against uploaded files. This allows you to integrate third party malware scanners.
This plugin requires either ClamAV or another third-party scanner to be installed. This plugin will pass uploaded files to the scanner and take appropriate actions based ont he results, but it is not, itself, a malware scanner.
If you have a dedicated server, you can install php-clamav for performance and convenience.
Banner image from Eric Martinenz