[clamav-users] Secure download/verification of clamav database?

Luke Massa lmassa at tripadvisor.com
Wed Oct 24 17:10:33 UTC 2018


But what are they signed *by*? If it’s using a public/private keypair, where is the public key? Is it baked into freshclam/clamd/clamscan somewhere?

- Luke

> On Oct 24, 2018, at 11:59 AM, Noel Jones <njones at megan.vbhcs.org> wrote:
> 
> On 10/23/2018 2:17 PM, Luke Massa wrote:
>> 
>> In short, is there any way I can setup clamav/freshclam and be
>> confident that a malicious user isn’t adding/removing signatures
>> from the upstream mirrors?
> 
> The .cvd files have an internal cryptographic signature that's
> checked by freshclam and clamd/clamscan.  If freshclam and/or clamd
> accepts the files, you can be assured they are official and
> unmodified.  This is built into clam; no external tools are called.
> 
> 
> 
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