"how to filter handshakes in file" Code Answer's
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how to filter handshakes in file
#!/bin/bash
# Author: MiAl
# Script home page: https://miloserdov.org/?p=1047
AIRCRACK_TIMEOUT=2 # given time to the aircrack-ng program to read the file. Time is specified in seconds
# If you have a very large file or a very slow system, increase this value
DIR=`date +"%Y-%m-%d-%H%M%S"`
ISDIRCREATED=0
if [[ "$1" && -f "$1" ]]; then
FILE="$1"
else
echo 'Specify a (p)cap file from which you want to extract the handshakes.';
echo 'Usage:';
echo -e "\tbash handshakes_extractor.sh wpa.cap";
exit 1
fi
while read -r "line" ; do
if [ "$(echo "$line" | grep 'WPA' | grep -E -v '(0 handshake)' | grep -E 'WPA \(' | awk -F ' ' '{print $3}')" ]; then
if [ $ISDIRCREATED -eq 0 ]; then
mkdir ./$DIR || (echo "It is not possible to create a directory for saving handshakes. Quitting." && exit 1)
ISDIRCREATED=1
fi
ESSID="$(echo "$line" | grep 'WPA' | grep -E -v '(0 handshake)' | grep -E 'WPA \(' | awk -F ' ' '{print $3}')"
BSSID="$(echo "$line" | grep 'WPA' | grep -E -v '(0 handshake)' | grep -E 'WPA \(' | awk -F ' ' '{print $2}')"
echo -e "\033[0;32mFound a handshake for the network $ESSID ($BSSID). Saved to file $DIR/\033[1m$ESSID.pcap\e[0m"
tshark -r $FILE -R "(wlan.fc.type_subtype == 0x08 || wlan.fc.type_subtype == 0x05 || eapol) && wlan.addr == $BSSID" -2 2>/dev/null
tshark -r $FILE -R "(wlan.fc.type_subtype == 0x08 || wlan.fc.type_subtype == 0x05 || eapol) && wlan.addr == $BSSID" -2 -w ./$DIR/"$ESSID.pcap" -F pcap 2>/dev/null
fi
done < <(aircrack-ng $FILE & sleep $AIRCRACK_TIMEOUT && kill -9 aircrack-ng $(ps aux | grep 'aircrack-ng '$FILE | grep -v grep | awk '{print $2}') 2>/dev/null)
Source: miloserdov.org
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