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#!/usr/bin/env bash
YARA=$(type -P yara)
CONFIG_PATH='/etc/phpmalwarefinder/malwares.yara'
IONICE_BIN=$(type -P ionice)
NICE_BIN=$(type -P nice)
if [ ! -f "$YARA" ]
then
YARA='./yara'
fi
if [ ! -f "$CONFIG_PATH" ]
then
CONFIG_PATH='./malwares.yara'
fi
if [ -f "${IONICE_BIN}" ]
then
NICE=${IONICE_BIN}
NICE_OPTS="-c 3"
else
if [ -f "${NICE_BIN}" ]
then
NICE=${NICE_BIN}
NICE_OPTS="-n 20"
fi
fi
# before starting yara, check if the file
one_line_trick() {
for file in $(find $@ -type f); do
line_num=$(wc -l $file | cut -d' ' -f1)
char_num=$(wc -c $file | cut -d' ' -f1)
if [ "$line_num" -le "2" ]; then
# humm, 2 lines long file ?
if [ "$char_num" -ge "300" ]; then
echo TooShort $file
fi;
fi;
done;
}
show_help() {
cat << EOF
Usage ${0##*/} [-cfhw] <file|folder> ...
-c Optional path to a configuration file
-f Fast mode
-h Show this help message
-v Verbose mode
EOF
}
OPTIND=1
while getopts "c:fhv" opt; do
case "$opt" in
h)
show_help
exit 0
;;
f)
OPTS="${OPTS} -f"
;;
c)
CONFIG_PATH=${OPTARG}
;;
v)
OPTS="${OPTS} -s"
;;
'?')
show_help
exit 1
;;
esac
done
shift "$((OPTIND-1))"
if [ ! -e ${YARA} ]
then
echo "Can't find yara. Did you installed it?"
exit 1
fi
if [ ! -e ${CONFIG_PATH} ]
then
echo "${CONFIG_PATH} doesn't exist. Please give me a valid file."
exit 1
fi
if [ -z $@ ]
then
show_help
exit 1
fi
if [ ! -e ${NICE} ]
then
echo "No nice program available. Please install ionice or nice."
exit 1
fi
OPTS="${OPTS} -r ${CONFIG_PATH}"
one_line_trick $@
${NICE} ${NICE_OPTS} $YARA $OPTS $@
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