Thanks Al. That helps a lot in understanding what each .cvd file is  and
how it gets used.


On Mon, Jan 28, 2013 at 11:53 AM, Al Varnell <alvarn...@mac.com> wrote:

> On 1/28/13 10:41 AM, "Kaushik Vaidyanathan"  wrote:
>
> > Hi
> >
> > Can someone help me understand what each cvd file(main, daily,
> safebrowsing
> > and bytecode) capture?
>
> The main and daily files serve essentially the same purpose.  When the
> daily
> gets to be too large for efficient distribution, it is added to the main
> and
> restarted.  In the past this has occurred perhaps once a year.
>
> The bytecode signatures are more complex, allowing for more refined
> analysis
> of file contents.  A number of them seem to be targetted against documented
> CVE's <http://cve.mitre.org/about/faqs.html>.
>
> As I understand it, safebrowsing is a database of blacklisted URL's
> provided
> by Google <https://developers.google.com/safe-browsing/>
>
> > I am interested in understanding how the signature
> > counts have been increasing over the years. How can I go about coming up
> > with the total number of signatures clamav would use during its scan?
> >
> You can observe the raw number of signatures at any given time by visiting
> the ClamAV home page <http://www.clamav.net/> but adding them up will not
> necessarily give you the total number used during a scan.  That would
> depend
> on what options you have turned on in the clamd.conf file or enabled in the
> command line for clamscan (e.g. PUA, bytecode, safebrowsing).
>
> In the summary of each scan the entry "Known viruses:" tells you how many
> signatures were loaded when conducting that scan.
>
>
> -Al-
>
> --
> Al Varnell
> Mountain View, CA
>
>
>
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