I first clamscaned the downloaded clamav-0.82.tar.gz
but it does not detect any virus. Then I gunzipped it,
untarred it, tarred and gzipped it, and then
clamscaned it again. This time, it detect
ClamAV-Test-File. If you take a look at the "Data
scanned:", you will see the first time is 23.77MB and
the second time is only 3.16MB.
Can any developers give me an explaination ????
cweng-fedora:/home/cweng 235 >clamscan
clamav-0.82.tar.gz
clamav-0.82.tar.gz: OK
----------- SCAN SUMMARY -----------
Known viruses: 30742
Scanned directories: 0
Scanned files: 1
Infected files: 0
Data scanned: 23.77 MB
I/O buffer size: 131072 bytes
Time: 5.060 sec (0 m 5 s)
cweng-fedora:/home/cweng 236 >gunzip
clamav-0.82.tar.gz
cweng-fedora:/home/cweng 237 >tar xf clamav-0.82.tar
cweng-fedora:/home/cweng 238 >
cweng-fedora:/home/cweng 238 >tar cf clamav-0.82.tar
clamav-0.82
cweng-fedora:/home/cweng 239 >gzip clamav-0.82.tar
cweng-fedora:/home/cweng 240 >clamscan
clamav-0.82.tar.gz
clamav-0.82.tar.gz: ClamAV-Test-File FOUND
----------- SCAN SUMMARY -----------
Known viruses: 30742
Scanned directories: 0
Scanned files: 1
Infected files: 1
Data scanned: 3.16 MB
I/O buffer size: 131072 bytes
Time: 2.032 sec (0 m 2 s)
cweng-fedora:/home/cweng 241 >
cweng-fedora:/home/cweng/clamav-0.82 111 >gzip
--version
gzip 1.3.3
(2002-03-08)
Copyright 2002 Free Software Foundation
Copyright 1992-1993 Jean-loup Gailly
This program comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of this program
under the terms of the GNU General Public License.
For more information about these matters, see the file
named COPYING.
Compilation options:
DIRENT UTIME STDC_HEADERS HAVE_UNISTD_H HAVE_MEMORY_H
HAVE_STRING_H HAVE_LSTAT
Written by Jean-loup Gailly.
cweng-fedora:/home/cweng/clamav-0.82 112 >tar
--version
tar (GNU tar) 1.13.25
Copyright © 2001 Free Software Foundation, Inc.
This program comes with NO WARRANTY, to the extent
permitted by law.
You may redistribute it under the terms of the GNU
General Public License;
see the file named COPYING for details.
Written by John Gilmore and Jay Fenlason.
cweng-fedora:/home/cweng/clamav-0.82 113 >
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