Etch does not update ClamAV often enough. When our version is too old we can just update virus definition 6 times per days.
By default, it tries to download new version 24 times a day and this stupid antivirus stops working if it cannot update his definition.
So, if you don’t upgrade ClamAV you should configure Freshclam to update the virus definition less than 6 times a day. Otherwise you will have a lot of error messages of timeout.
# Check for new database 2 times a day
A better solution can be to keep Clamav updated.
A non official team work on Volatile update of Debian Stable.
I just added this line in my /etc/apt/sources.conf :
deb http://volatile.debian.org/debian-volatile etch/volatile main contrib non-free
Then run :
And now Clamav is up to date.