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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