<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <!--Converted with LaTeX2HTML 2002-2-1 (1.70) original version by: Nikos Drakos, CBLU, University of Leeds * revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan * with significant contributions from: Jens Lippmann, Marek Rouchal, Martin Wilck and others --> <HTML> <HEAD> <TITLE>CVD format</TITLE> <META NAME="description" CONTENT="CVD format"> <META NAME="keywords" CONTENT="clamdoc"> <META NAME="resource-type" CONTENT="document"> <META NAME="distribution" CONTENT="global"> <META NAME="Generator" CONTENT="LaTeX2HTML v2002-2-1"> <META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css"> <LINK REL="STYLESHEET" HREF="clamdoc.css"> <LINK REL="previous" HREF="node80.html"> <LINK REL="up" HREF="node77.html"> <LINK REL="next" HREF="node82.html"> </HEAD> <BODY > <DIV CLASS="navigation"><!--Navigation Panel--> <A NAME="tex2html1385" HREF="node82.html"> <IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="/usr/share/latex2html/icons/next.png"></A> <A NAME="tex2html1381" HREF="node77.html"> <IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="/usr/share/latex2html/icons/up.png"></A> <A NAME="tex2html1377" HREF="node80.html"> <IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="/usr/share/latex2html/icons/prev.png"></A> <A NAME="tex2html1383" HREF="node1.html"> <IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="/usr/share/latex2html/icons/contents.png"></A> <BR> <B> Next:</B> <A NAME="tex2html1386" HREF="node82.html">Credits</A> <B> Up:</B> <A NAME="tex2html1382" HREF="node77.html">LibClamAV</A> <B> Previous:</B> <A NAME="tex2html1378" HREF="node80.html">Scan engine</A> <B> <A NAME="tex2html1384" HREF="node1.html">Contents</A></B> <BR> <BR></DIV> <!--End of Navigation Panel--> <H2><A NAME="SECTION00074000000000000000"> CVD format</A> </H2> CVD (ClamAV Virus Database) is a digitally signed tarball file that contains one or more databases. You can find some useful information in the ASCII header of the file. It's a 512 bytes long string with the following colon separated fields: <PRE> ClamAV-VDB:build time:version:number of signatures:functionality level required:MD5 checksum:digital signature:builder name </PRE> and can be easily parsed by scripts or with <code>sigtool --info</code>. There are two CVD databases in ClamAV: <SPAN CLASS="textit">main.cvd</SPAN> and <SPAN CLASS="textit">daily.cvd</SPAN> for daily updates. You can use <SPAN CLASS="textit">sigtool</SPAN> to unpack a CVD file (<code>--unpack</code>) and to list virus names (<code>--list-sigs</code>). <P> <BR><HR> <ADDRESS> Tomasz Kojm 2004-07-22 </ADDRESS> </BODY> </HTML>