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I found on the web this example for logging:

Code: 
iptables -N LOGGING
iptables -A INPUT -j LOGGING
iptables -A OUTPUT -j LOGGING
iptables -A LOGGING -m limit --limit 2/min -j LOG --log-prefix "IPTables-Dropped: " --log-level 4
iptables -A LOGGING -j DROP

and on the iptables -L I can see there is already a chain called logdrop, with the code above can I edit to reject ?
thanks
 
dunno never bothered with it but its worth trying :) if anyone else got experience please chime in :D in anycase its easy to reset if it doesn't work.
 
Revision Bump to 20

Code: 
#!/bin/sh
# Author: Toast
# Contributers: Octopus, Tomsk, Neurophile, jimf, spalife, visortgw, Cedarhillguy, redhat27
# Testers: shooter40sw
# Supporters: lesandie
# Revision 20

blocklist=/jffs/malware-filter.list                     # Set your path here
fwoption=REJECT                                         # DROP/REJECT    (Default Value: REJECT)
retries=3                                               # Set number of tries here
regexp=`echo "\b([0-9]{1,3}\.){3}[0-9]{1,3}\b"`         # Dont change this value

case $(ipset -v | grep -o "v[4,6]") in
  v6)   MATCH_SET='--match-set'; CREATE='create'; ADD='add'; SWAP='swap'; IPHASH='hash:ip'; DESTROY='destroy';
        lsmod | grep -q "xt_set" || \
        for module in ip_set ip_set_nethash ip_set_iphash xt_set; do
            insmod $module
        done ;;
  v4)   MATCH_SET='--set'; CREATE='--create'; ADD='--add'; SWAP='--swap'; IPHASH='iphash'; DESTROY='--destroy';
        lsmod | grep -q "ipt_set" || \
        for module in ip_set ip_set_nethash ip_set_iphash ipt_set; do
            insmod $module
        done ;;
  *)    logger -t system "$0 unsupported ipset version"; exit 1 ;;
esac

check_online () {
while ! ping -q -c 1 google.com >/dev/null 2>&1; do
    sleep 1
    WaitSeconds=$((WaitSeconds+1))
    [ $WaitSeconds -gt 300 ] && logger -t system "$0 Router not online! Aborting after a wait of 5 minutes..." && exit 1
done
}

get_list () {
url=https://gitlab.com/swe_toast/malware-filter/raw/master/malware-filter.list
if [ ! -f $blocklist ]
then wget $url -O $blocklist; get_source; else get_source; fi
}

get_source () {
wget -q --tries=$retries --show-progress -i $blocklist -O /tmp/malware-filter-raw.part
    awk '!/(^127\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^192\.168\.)/' /tmp/malware-filter-raw.part > /tmp/malware-filter-presort.part
    cat /tmp/malware-filter-presort.part | grep -oE "$regexp" | sort -u > /tmp/malware-filter-sorted.part
}

run_ipset () {
echo "adding ipset rule to firewall this will take time."
ipset -L malware-filter >/dev/null 2>&1
if [ $? -ne 0 ]; then
    if [ "$(ipset --swap malware-filter malware-filter 2>&1 | grep -E 'Unknown set|The set with the given name does not exist')" != "" ]; then
    nice -n 2 ipset $CREATE malware-filter $IPHASH
    if [ -f /opt/bin/xargs ]; then
    /opt/bin/xargs -P10 -I "PARAM" -n1 -a /tmp/malware-filter-sorted.part nice -n 2 ipset  $ADD malware-filter PARAM
    else cat /tmp/malware-filter-sorted.part | xargs -I {} ipset $ADD malware-filter {}; fi
fi
else
    nice -n 2 ipset $CREATE malware-update $IPHASH
    if [ -f /opt/bin/xargs ]; then
    /opt/bin/xargs -P10 -I "PARAM" -n1 -a /tmp/malware-filter-sorted.part nice -n 2 ipset  $ADD malware-update PARAM
    else cat /tmp/malware-filter-sorted.part | xargs -I {} ipset $ADD malware-update {}; fi
    nice -n 2 ipset $SWAP malware-update malware-filter
    nice -n 2 ipset $DESTROY malware-update
fi
iptables -L | grep malware-filter > /dev/null 2>&1
if [ $? -ne 0 ]; then
    nice -n 2 iptables -I FORWARD -m set $MATCH_SET malware-filter src,dst -j $fwoption
else
    nice -n 2 iptables -D FORWARD -m set $MATCH_SET malware-filter src,dst -j $fwoption
    nice -n 2 iptables -I FORWARD -m set $MATCH_SET malware-filter src,dst -j $fwoption
fi }

cleanup () {
logger -t system "$0 loaded $(ipset -L malware-filter | wc -l | awk '{print $1-7}') unique ip addresses."
find /tmp -name 'malware-filter-*.part' -exec rm {} +
}

check_online
get_list
run_ipset
cleanup

exit $?
 
redhat27 said:
FYI, I had done exactly that: Put the choice to the user, both in the iblocklist-loader.sh and on the tor/country/etc. block
Click to expand...
wow, your list integrated with everything.
Again I am saying DROP is more common in enterprise firewalls.
As for home router users, if the block is to filter the outbound traffic, like privacy filter, AD block, please use REJECT (I personally like to use DNSMASQ to filter these URL based list, not iptables).
If the block is inbound, please consider to use DROP instead of REJECT.
 
please discuss redhat27 script at his threads, keep it about my scripts less crosstalk its kinda counter productive
 
You might mention in the wiki to make malware-block executable.

Also, running .20 manually, I got an error I think in the get_source() module:

Code: 
awk: /tmp/malware-filter-raw.part: No such file or directory
I ran it a second time and it worked okay.
 
Last edited:
Revision 21
Changelog:
  • Persistent firewall rules
  • Ipset rewrite
  • Minor fixes and tweaks
Code: 
#!/bin/sh
# Author: Toast
# Contributers: Octopus, Tomsk, Neurophile, jimf, spalife, visortgw, Cedarhillguy, redhat27
# Testers: shooter40sw
# Supporters: lesandie
# Revision 21

blocklist=/jffs/malware-filter.list                     # Set your path here
fwoption=REJECT                                         # DROP/REJECT    (Default Value: REJECT)
retries=3                                               # Set number of tries here
regexp=`echo "\b([0-9]{1,3}\.){3}[0-9]{1,3}\b"`         # Dont change this value

case $(ipset -v | grep -o "v[4,6]") in
  v6)   MATCH_SET='--match-set'; CREATE='create'; ADD='add'; SWAP='swap'; IPHASH='hash:ip'; DESTROY='destroy';LIST='list'; 
        lsmod | grep -q "xt_set" || \
        for module in ip_set ip_set_nethash ip_set_iphash xt_set; do
            insmod $module
        done ;;
  v4)   MATCH_SET='--set'; CREATE='--create'; ADD='--add'; SWAP='--swap'; IPHASH='iphash'; DESTROY='--destroy';LIST='--list'; 
        lsmod | grep -q "ipt_set" || \
        for module in ip_set ip_set_nethash ip_set_iphash ipt_set; do
            insmod $module
        done ;;
  *)    logger -t system "$0 unsupported ipset version"; exit 1 ;;
esac

check_online () {
while ! ping -q -c 1 google.com >/dev/null 2>&1; do
    sleep 1
    WaitSeconds=$((WaitSeconds+1))
    [ $WaitSeconds -gt 300 ] && logger -t system "$0 Router not online! Aborting after a wait of 5 minutes..." && exit 1
done
}

get_list () {
url=https://gitlab.com/swe_toast/malware-filter/raw/master/malware-filter.list
if [ ! -f $blocklist ]
then wget $url -O $blocklist; get_source; else get_source; fi
}

get_source () {
wget -q --tries=$retries --show-progress -i $blocklist -O /tmp/malware-filter-raw.part
    awk '!/(^127\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^192\.168\.)/' /tmp/malware-filter-raw.part > /tmp/malware-filter-presort.part
    cat /tmp/malware-filter-presort.part | grep -oE "$regexp" | sort -u > /tmp/malware-filter-sorted.part
}

run_ipset () {
echo "adding malware-filter rules to firewall this will take time."
! ipset $LIST malware-filter &>/dev/null
if [ $? -ne 0 ]
then    nice -n 15 ipset $CREATE malware-update $IPHASH
        if [ -f /opt/bin/xargs ]; then
        /opt/bin/xargs -P10 -I "PARAM" -n1 -a /tmp/malware-filter-sorted.part nice -n 15 ipset $ADD malware-update PARAM
        else cat /tmp/malware-filter-sorted.part | xargs -I {} nice -n 15 ipset $ADD malware-update {}; fi
        nice -n 15 ipset $SWAP malware-update malware-filter
        nice -n 15 ipset $DESTROY malware-update
else    nice -n 15 ipset $CREATE malware-filter $IPHASH
        if [ -f /opt/bin/xargs ]; then
        /opt/bin/xargs -P10 -I "PARAM" -n1 -a /tmp/malware-filter-sorted.part nice -n 15 ipset $ADD malware-filter PARAM
        else cat /tmp/malware-filter-sorted.part | xargs -I {} nice -n 15 ipset $ADD malware-filter {}; fi
fi }

set_firewall () {
for ipSet in $(ipset -L | sed -n '/^Name:/s/^.* //p'); do
    case $ipSet in
        malware-filter) iptables-save | grep -q "$ipSet" || iptables -I FORWARD -m set $MATCH_SET $ipSet src,dst -j $fwoption ;;
    esac
done
}

cleanup () {
logger -t system "$0 loaded $(ipset -L malware-filter | wc -l | awk '{print $1-7}') unique ip addresses."
find /tmp -name 'malware-filter-*.part' -exec rm {} +
}

check_online
get_list
run_ipset
set_firewall
cleanup

exit $?
 
Last edited:
swetoast said:
Revision 21
Changelog:
  • Persistent firewall rules
  • Ipset rewrite
  • Minor fixes and tweaks
Code: 
#!/bin/sh
# Author: Toast
# Contributers: Octopus, Tomsk, Neurophile, jimf, spalife, visortgw, Cedarhillguy, redhat27
# Testers: shooter40sw
# Supporters: lesandie
# Revision 21

blocklist=/jffs/malware-filter.list                     # Set your path here
fwoption=REJECT                                         # DROP/REJECT    (Default Value: REJECT)
retries=3                                               # Set number of tries here
regexp=`echo "\b([0-9]{1,3}\.){3}[0-9]{1,3}\b"`         # Dont change this value

case $(ipset -v | grep -o "v[4,6]") in
  v6)   MATCH_SET='--match-set'; CREATE='create'; ADD='add'; SWAP='swap'; IPHASH='hash:ip'; DESTROY='destroy';
        lsmod | grep -q "xt_set" || \
        for module in ip_set ip_set_nethash ip_set_iphash xt_set; do
            insmod $module
        done ;;
  v4)   MATCH_SET='--set'; CREATE='--create'; ADD='--add'; SWAP='--swap'; IPHASH='iphash'; DESTROY='--destroy';
        lsmod | grep -q "ipt_set" || \
        for module in ip_set ip_set_nethash ip_set_iphash ipt_set; do
            insmod $module
        done ;;
  *)    logger -t system "$0 unsupported ipset version"; exit 1 ;;
esac

check_online () {
while ! ping -q -c 1 google.com >/dev/null 2>&1; do
    sleep 1
    WaitSeconds=$((WaitSeconds+1))
    [ $WaitSeconds -gt 300 ] && logger -t system "$0 Router not online! Aborting after a wait of 5 minutes..." && exit 1
done
}

get_list () {
url=https://gitlab.com/swe_toast/malware-filter/raw/master/malware-filter.list
if [ ! -f $blocklist ]
then wget $url -O $blocklist; get_source; else get_source; fi
}

get_source () {
wget -q --tries=$retries --show-progress -i $blocklist -O /tmp/malware-filter-raw.part
    awk '!/(^127\.)|(^10\.)|(^172\.1[6-9]\.)|(^172\.2[0-9]\.)|(^172\.3[0-1]\.)|(^192\.168\.)/' /tmp/malware-filter-raw.part > /tmp/malware-filter-presort.part
    cat /tmp/malware-filter-presort.part | grep -oE "$regexp" | sort -u > /tmp/malware-filter-sorted.part
}

run_ipset () {
echo "adding malware-filter rules to firewall this will take time."
! ipset list malware-filter &>/dev/null
if [ $? -ne 0 ]
then    nice -n 15 ipset $CREATE malware-update $IPHASH
        if [ -f /opt/bin/xargs ]; then
        /opt/bin/xargs -P10 -I "PARAM" -n1 -a /tmp/malware-filter-sorted.part nice -n 15 ipset $ADD malware-update PARAM
        else cat /tmp/malware-filter-sorted.part | xargs -I {} nice -n 15 ipset $ADD malware-update {}; fi
        nice -n 15 ipset $SWAP malware-update malware-filter
        nice -n 15 ipset $DESTROY malware-update
else    nice -n 15 ipset $CREATE malware-filter $IPHASH
        if [ -f /opt/bin/xargs ]; then
        /opt/bin/xargs -P10 -I "PARAM" -n1 -a /tmp/malware-filter-sorted.part nice -n 15 ipset $ADD malware-filter PARAM
        else cat /tmp/malware-filter-sorted.part | xargs -I {} nice -n 15 ipset $ADD malware-filter {}; fi
fi }

set_firewall () {
for ipSet in $(ipset -L | sed -n '/^Name:/s/^.* //p'); do
    case $ipSet in
        malware-filter) iptables-save | grep -q "$ipSet" || iptables -I FORWARD -m set $MATCH_SET $ipSet src,dst -j $fwoption ;;
    esac
done
}

cleanup () {
logger -t system "$0 loaded $(ipset -L malware-filter | wc -l | awk '{print $1-7}') unique ip addresses."
find /tmp -name 'malware-filter-*.part' -exec rm {} +
}

check_online
get_list
run_ipset
set_firewall
cleanup

exit $?
Click to expand...
The line "! ipset list malware-filter &>/dev/null" does not work for mips routers (e.g., RT-N66R) with the older version of ipset. It appears that "! ipset --list malware-filter &>/dev/null" will work for both ipset v4 and ipset v6.
 
Last edited:
kewl ill adjust the revision in the thread no point in uping a new revision for an easy fix, in anycase the above sample should work now
 
HI, I have been searching the net but have not found the proper list to use with this script, to be able to block tor exit nodes? I asume that the list on the other script is not compatible with this one, I dont want to be making scripts for everything so does anybody know a list for tor exits IP that I can use with this script?
thanks
 
consult the wiki, this is only for blocking malware filters.. think redhat27 supports tor blocking scripts not me
 
Hi everyone

been working on the wiki while i was sick (didnt have anything better to do) so there is some changes coming up new versions of my script will be posted on my github or if i want testing done ill post here in the thread this is so the wiki will become easier to grasp so there is less confusion over ipset versions and how to deploy the scripts on your home router.

https://www.snbforums.com/threads/cleaning-up-the-wiki.38338/
https://github.com/RMerl/asuswrt-merlin/wiki/Using-ipset
https://github.com/RMerl/asuswrt-merlin/wiki/Ipset-script-installation-instructions
 
i know i get questions from time to time on how to see if this filter is working or not and i finally took the time to make a simple line that shows it easily for the user.

Code: 
iptables -L -v | grep "malware-filter" | awk '{print "Malware Filter Blocked: " $1 " packets", $2 " is the size of the transmission"}'

it will print something like this

Code: 
Malware Filter Blocked: 0 packets 0 is the size of the transmission

one could make an alias on this and have it as a easy command
 
Will link to gitlab from now on

Revision 23 is up

Link
  • Bugfix (noticed that sometimes after sorting the script gets confused and looses a file so i added a failover if the file with the ip are missing that its downloaded again.)
 
swetoast said:
i know i get questions from time to time on how to see if this filter is working or not and i finally took the time to make a simple line that shows it easily for the user.

Code: 
iptables -L -v | grep "malware-filter" | awk '{print "Malware Filter Blocked: " $1 " packets", $2 " is the size of the transmission"}'

it will print something like this

Code: 
Malware Filter Blocked: 0 packets 0 is the size of the transmission

one could make an alias on this and have it as a easy command
Click to expand...


The above command is taken by terminal but doesn't show any results as described.

Whoops rebooted tried again and it works.
 
Last edited:
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