A few quick answers: - CVD: ClamAV Virus Database, signed - CLD: ClamAV Virus Database, to which a diff update has been applied - CUD: ClamAV Virus Database, unsigned
Use "sigtool -u" to decompress. Alain On Sat, May 13, 2017 at 2:52 PM, Jörg Jenderek <joerg.jen.der...@gmx.net> wrote: > Hello, > i found several file name extension for Clamav virus databases, > but i found no official or good explanation for used extension. > > According to man page for freshclam.conf i expected that "cld" extension > is used for uncompressed database and "cvd" is used for compressed > database nowadays after update process with 2 different > CompressLocalDatabase values. But this not always true for my expected > examples. > Furthermore it is not written in official documentation what > is the meaning of uncompressed or compressed database. > For my examples uncompressed database contains tar file and compressed > database contains gzipped tar file. I verified this by file(1) command > and by cutting of 512 byte header part with dd command and inspecting > remaining parts with gz and tar command. But i do not know if this > always or true or if other compression methods like bz2, xz can be occur. > > During update process when downloading database filenames like > clamav-*.clamtmp seems to be used. > > According to manual clamdoc.pdf ClamAV Virus Database header is a > 512-bytes long string with colon separated fields: > ClamAV-VDB:build time:version:number of signatures:functionality > level required:MD5 checksum:digital signature:builder name:build time > > This is true for cvd and cld files, but not for database with "cud" > extension. Does exist an official header description for such cud files? > > Sorry i am not a c programmer. But when looking in source file cvd.c > there seem to exist many more file name extension like "hdb" for > example. So what are the meaning of such extensions used by clamav? > > As far as i know clamav is the only open source antivirus solution. > So it would be nice to have mime types ( best official registered ) for > clamav databases. But i found no mime type. So does somebody knows about > mime type for clamav database? > > Thanks for hints and explanations > Jörg Jenderek > -- > Jörg Jenderek > > _______________________________________________ > clamav-users mailing list > clamav-users@lists.clamav.net > http://lists.clamav.net/cgi-bin/mailman/listinfo/clamav-users > > > Help us build a comprehensive ClamAV guide: > https://github.com/vrtadmin/clamav-faq > > http://www.clamav.net/contact.html#ml _______________________________________________ clamav-users mailing list clamav-users@lists.clamav.net http://lists.clamav.net/cgi-bin/mailman/listinfo/clamav-users Help us build a comprehensive ClamAV guide: https://github.com/vrtadmin/clamav-faq http://www.clamav.net/contact.html#ml
