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|
#!/bin/sh
# Download and install the EICAR Anti-Virus test file from the Internet
#
# (C) 2003 Marc Haber
# This script has been derived from update-ms-fonts by Eric Sharkey
# You may freely distribute this file under the terms of the GNU General
# Public License, version 2 or later.
#abort if anything goes wrong
set -e
if [ `id -u` != 0 ] ; then
echo "update-eicar can only be run as root."
exit -1
fi
for x in $* ; do
if [ `echo $x | awk '{print substr($1,1,1)}'` = '-' ] ; then
case `echo $x | awk '{print substr($1,2,1)}'` in
q) QUIET_MODE=1;;
c) CHECK_ONLY=1;;
esac
else
LOCALCOPY=$x
fi
done
if [ `echo $LOCALCOPY | tr [:upper:] [:lower:] `x = "nonex" ] ; then
exit 0
fi
EXITCODE=0
URLROOT="http://www.eicar.org/download"
LOCALTARGETDIR="/var/lib/clamav-getfiles"
SCRATCHDIR=/tmp/clamav-getfiles
if [ "$SCRATCHDIR" = "$LOCALCOPY" ] ; then
SCRATCHDIR=/tmp/clamav-getfiles-scratch
fi
mkdir -p -m 0755 $SCRATCHDIR
if [ -O $SCRATCHDIR ] ; then
if [ `ls -ld $SCRATCHDIR | awk '{print substr($1,6,1) substr($1,9,1)}'` != '--' ] ; then
echo "
update-eicar: Error: $SCRATCHDIR must have mode 755 permissions.
The directory $SCRATCHDIR is writable by non-root users. Using this
directory would be a security risk. Please remove this directory.
" 1>&2
exit -3;
fi
else
echo "
update-eicar: Error: $SCRATCHDIR is not owned by root.
The directory $SCRATCHDIR exists but is not owned by root with group
root. Using this directory would be a security risk. Please remove it.
" 1>&2
exit -2;
fi
cd $SCRATCHDIR
INFOFILE="eicar.info"
cat <<EOF > $INFOFILE
44d88612fea8a8f36de82e1278abb02f eicar.com
EOF
for file in `awk '{print $2}' $INFOFILE` ; do
if [ ! -e $LOCALTARGETDIR/$file ] || [ `md5sum $LOCALTARGETDIR/$file | awk '{print $1}'` != `grep $file $INFOFILE | awk '{print $1}'` ] ; then
THISFILE=`grep $file $INFOFILE | awk '{print $2}'`
echo "$file md5sum mismatch, file needs downloading"
if ! echo $DWNLDFILES | grep -q $THISFILE ; then
DWNLDFILES="$DWNLDFILES $THISFILE"
fi
fi
done
mkdir -p $LOCALTARGETDIR
if [ -n "$CHECK_ONLY" ] ; then
if [ -n "$DWNLDFILES" ] ; then
EXITCODE=1
fi
elif [ -n "$DWNLDFILES" ] ; then
for ff in $DWNLDFILES; do
if [ ! -e $ff.done ] || [ ! -e $ff ] ; then
if [ -z "$LOCALCOPY" ] ; then
if [ -n "$QUIET_MODE" ] ; then
curl --quiet --remote-name $URLROOT/$ff
else
echo curl --remote-name $URLROOT/$ff
curl --remote-name $URLROOT/$ff
fi
else
cp $LOCALCOPY/$ff .
fi
cp $ff $LOCALTARGETDIR
touch $ff.done
fi
done
#Add some level of predictability by folding everything to lower case
for x in *; do
y=`echo $x | tr '[A-Z]' '[a-z]'`
if [ "$x" != "$y" ]; then
mv "$x" "$y"
fi
done
chmod 644 *
awk '{print $2}' $INFOFILE > /var/lib/clamav-getfiles/installedfiles
fi
rm -rf $SCRATCHDIR
if [ -z "$QUIETMODE" ] ; then
if [ $EXITCODE = 0 ] ; then
echo "EICAR Anti-Virus Test File downloaded and installed."
else
echo "EICAR Anti-Virus Test File needs to be updated."
fi
fi
exit $EXITCODE
|
