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multicapconverter.py

Tool used to Convert a WPA cap/pcap/pcapng capture file to a hashcat hcwpax/hccapx file (re)written in Python (based on c version)

usage: multicapconverter.py --input capture.cap --export {hcwpax,hccapx}
                            [--output capture.hcwpax] [--all]
                            [--filter-by filter-by filter]
                            [--group-by {none,bssid,essid,handshake}]
                            [--quiet] [--version] [--help]

Convert a WPA cap/pcap/pcapng capture file to a hashcat hcwpax/hccapx file

required arguments:
  --input capture.cap, -i capture.cap
                        Input capture file
  --export {hcwpax,hccapx}, -x {hcwpax,hccapx}

optional arguments:
  --output capture.hcwpax, -o capture.hcwpax
                        Output file
  --all, -a             Export all handshakes even unauthenticated ones
  --filter-by filter-by filter, -f filter-by filter
                        --filter-by {bssid XX:XX:XX:XX:XX:XX, essid ESSID}
  --group-by {none,bssid,essid,handshake}, -g {none,bssid,essid,handshake}
  --quiet, -q           Enable quiet mode (print only output files/data)
  --version, -v         show program's version number and exit
  --help, -h            show this help message and exit

Features

  • Supports cap/pcap/pcapng
  • Supports combined cap/pcap/pcapng files
  • Supports gz compressed cap/pcap/pcapng files
  • Export as hccapx (hashcat mode = 2500)
  • Export as hcwpax (hashcat mode = 22000)
  • Export only authenticated handshakes or all handshakes
  • Output files can be filtered/grouped
  • Supports hcxdumptool

Examples

We have a capture file 'capture.cap' which includes 4 handshakes:

# BSSID ESSID AUTHENTICATED
1 00:00:00:00:AA:AA Wifi N
2 00:00:00:00:AA:AA Wifi Y
3 00:00:00:00:BB:BB Internet Y
4 00:00:00:00:CC:CC Wifi Y

By default the original c version write all the hccapx into one file no matter what. If you need a single separated handshake you will have to use a hex editor and take the required 393 bytes by yourself.. Well not anymore

Also the original c version export all the handshakes even if they are not authenticated, in this python version it's a bit different, as the default is to ignore unauthenticated handshakes but can be exported by using the --all flag

1) Extract each handshake into a separated file (Auth Only)

python3 multicapconverter.py -i capture.cap --group-by handshake -x hccapx
...
Output files:
00-00-00-00-AA-AA_0.hccapx // 2
00-00-00-00-BB-BB_0.hccapx // 3
00-00-00-00-CC-CC_0.hccapx // 4

2) Extract each handshake into a separated file (All)

python3 multicapconverter.py -i capture.cap --group-by handshake -x hccapx --all
...
Output files:
00-00-00-00-AA-AA_0.hccapx // 1
00-00-00-00-AA-AA_1.hccapx // 2
00-00-00-00-BB-BB_0.hccapx // 3
00-00-00-00-CC-CC_0.hccapx // 4

3) Extract all handshakes into one file (just like the old c version)

python3 multicapconverter.py -i capture.cap --group-by none -x hccapx --all
...
Output files:
capture.hccapx // 1, 2, 3 and 4

4) Extract handshakes based on BSSID

python3 multicapconverter.py -i capture.cap --group-by bssid -x hccapx --all
...
Output files:
00-00-00-00-AA-AA.hccapx // 1 and 2
00-00-00-00-BB-BB.hccapx // 3
00-00-00-00-CC-CC.hccapx // 4

5) Extract handshakes based on ESSID

python3 multicapconverter.py -i capture.cap --group-by essid -x hccapx --all
...
Output files:
Wifi.hccapx // 1, 2 and 4
Internet.hccapx // 3

6) Extract handshakes based on ESSID having a specific BSSID

python3 multicapconverter.py -i capture.cap --group-by essid --filter-by bssid 00:00:00:00:CC:CC -x hccapx --all
...
Output files:
Wifi.hccapx // 4

Notes

  • --group-by does not effect hcwpax (WPA*01 & WPA*02) output
  • --all does not effect hcwpax (WPA*01) output

TIPS

  • use --quiet for better performance

TODO

  • Enhance performance and the way the script deals with structures
  • Fix performance issues when dealing with big capture files
  • Custom output file formats