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Clamav

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Clamav is an open source antivirus solution.

Installation

root # emerge app-antivirus/clamav

Virus definitions need to be installed before starting the clamd service

root # freshclam

Configuration

Configuration files are located at /etc/conf.d/clamd, /etc/clamd.conf, and /etc/freshclam.conf

Runtime

root # rc-update add clamd default
root # rc

Testing

To make sure things are installed correctly, users have the option to run against the the EICAR Standard Anti-Virus Test File:

root # wget -O- http://www.eicar.org/download/eicar.com.txt

Usage

To scan single files:

root # clamscan /usr/bin/portageq

To scan a directory:

root # clamscan -ir /var/www/localhost/htdocs/
----------- SCAN SUMMARY -----------
Known viruses: 3736482
Engine version: 0.98.6
Scanned directories: 663
Scanned files: 6067
Infected files: 0
Total errors: 8
Data scanned: 58.61 MB
Data read: 36.59 MB (ratio 1.60:1)
Time: 42.691 sec (0 m 42 s)

External Resources

http://www.clamav.net/doc/install.html

Package:Clamav