title: Virus database main.cvd uncompression
body: <p>In my previous question (<a href="https://stackoverflow.com/questions/4965257/hexadecimal-virus-signatures-database">Hexadecimal virus signatures database</a>), I asked where I can get a hex virus signature database, and the answer was: ClamAV. So I downloaded the "main.cvd" database and was told that it was a compressed tar file. I have two questions to ask:</p>
  
  <ol>
  <li>are the signatures in hex format (of course when uncompressed)?</li>
  <li>how do I uncompress the "main.cvd" file to view its contents, do i just rename it to main.tar and then uncompress it?</li>
  </ol>