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clamav-users: Re: [Clamav-users] How important are file extensio

Re: [Clamav-users] How important are file extensions?

From: Roberto Ullfig <rullfig_at_nospam>
Date: Mon Sep 22 2008 - 16:59:43 GMT
To: ClamAV users ML <>

Alejandro Pedraza wrote:
>>> Does clamav have a mechanism to find out a file is an archive without
>>> relying on its extension? For example does it know it has to unzip a
>>> zipped file even if its extension was changed to a random one
>>> different than .zip ?
>> ClamAV doesn't rely on file extensions. It uses magic numbers, special
>> signatures and heuristics to detect file types.
> Excellent. Thanks for the fast reply.
> -- Alejandro
> _______________________________________________
> Help us build a comprehensive ClamAV guide: visit

Somewhat off topic but does someone here know if there's a standard file extension that represents a null program. What I mean is that we rename some attachment suffixes to .txt but this causes some problems with some applications. We'd like to rename the attachments with another suffix, one that will never be used for an application (present or future). Does anyone know if a standard suffix has been created for just this purpose? -- Roberto Ullfig - _______________________________________________ Help us build a comprehensive ClamAV guide: visit