clamav 0.90.3-1ubuntu1 (amd64 binary) in ubuntu gutsy

 Clam AntiVirus is an anti-virus toolkit for Unix. The main purpose of this
 software is the integration with mail servers (attachment scanning). The
 package provides a flexible and scalable multi-threaded daemon in the
 clamav-daemon package, a commandline scanner in the clamav package, and a tool
 for automatic updating via the Internet in the clamav-freshclam package. The
 programs are based on libclamav2, which you can use in your own software.
 .
 This package contains the command line interface. It has:
   * built-in support for various archive formats, including Zip, RAR, Tar,
     Gzip, Bzip2, OLE2, Cabinet, CHM, BinHex, SIS and others
   * built-in support for almost all mail file formats
   * built-in support for ELF executables and Portable Executable files
     compressed with UPX, FSG, Petite, NsPack, wwpack32, MEW, Upack and
     obfuscated with SUE, Y0da Cryptor and others
   * built-in support for popular document formats including MS Office and
     MacOffice files, HTML, RTF and PDF
 .
 For scanning to work you'll need a virus database. You have 2 alternatives:
  * clamav-freshclam: updates the database from Internet. This is
    recommended if you have Internet access.
  * clamav-data: for users without Internet access. Isn't updated at all
    once it's installed. You can easily create your own updated package from
    an Internet connected computer however, using clamav-getfiles.