php-ja3

php for SSL/TLS ja3 fingerprint. This project has three ideas, one is to cooperate with the web server (wkm_ja3.php) and its improved version(wkm_ja3_ex.php) , and the other is to monitor the tcpdump standard output (ja3_tcpdump.php)

Installing

composer install

wkm_ja3_ex.php

Data transfer direction

brower => php-ja3-ex(INBOUND) => catch JA3 => php-ja3-ex(OUTBOUND) => php-ja3-ex(https server)

Config

Change TcpConnection.php

// ./vendor/workerman/workerman/Connection/TcpConnection.php line 745


		if(defined('STREAM_CRYPTO_METHOD_SERVER')){
                         $type = \STREAM_CRYPTO_METHOD_SERVER;
                }else{
                        $type = \STREAM_CRYPTO_METHOD_SSLv2_SERVER | \STREAM_CRYPTO_METHOD_SSLv23_SERVER;
                }

INBOUND

// one prot 9764
define('INBOUND','tcp://0.0.0.0:9764');

OUTBOUND

//Also Https service
define('OUTBOUND','tcp://127.0.0.1:9765');

Run

php wkm_ja3_ex.php start -d

Tests

request

curl https://example.com:9764/

demo

php-ja3-ex demo

ja3_tcpdump.php

Data transfer direction

brower =>  nginx(https=>http) => /web/ja3.php
            | |                     A
             V                     | |
           tcpdump => stdout =>  ja3_tcpdump.php

Config

TCPDUMP_LISTEN_INTERFACE

// tcpdump listen interface, defautl 1. See 'tcpdump - D' for details
define('TCPDUMP_LISTEN_INTERFACE',1);

Run

sudo  php ja3_tcpdump.php start -d

Tests

request

curl https://example.com/ja3.php

return

{"ja3_hash":"0d69ff4……2834766","speed_time":0.402}

demo and blog

php、ja3和tcpdump (TLS握手指纹实践2)

Some problems

1. return none If you visit after a period of time, you will return none. You need to go to the following link to close the socket before the TLS handshake can occur again chrome://net-internals/#sockets
2. so slow With curl request, the average time spent is 0.5 minutes 02 ~ 0.6s, mainly due to the slow return of the command Popen ('tcpdump.. '). I don't know how to optimize it

ja3_tshark.php

The operation is same to ja3_tcpdump. The only thing to note is that the tshark version requires 3.*

wkm_ja3.php

Data transfer direction

brower => php-ja3(INBOUND) => catch JA3 => php-ja3(OUTBOUND) => nginx(https=>http) => /web/ja3.php

Config

INBOUND

// one prot 9763
define('INBOUND','tcp://0.0.0.0:9763');

OUTBOUND

define('OUTBOUND','tcp://example.com:443');

nginx

server {
    listen :443 ssl ;
    server_name example.com;
    …… ssl set
    root "pathto/php-ja3/web";
    location ~ \.php(.*)$ {
    ……  
    }

Run

php wkm_ja3.php start -d

Tests

request

curl https://example.com:9763/ja3.php

return

{"ja3_hash":"0d69ff4……2834766","speed_time":0.402}

catch all request

// public ip 
define('INBOUND','tcp://example.com:443'); 
// private ip (nginx need to listen it too)
define('OUTBOUND','tcp://127.0.0.1:443');

demo

php-JA3er TLS握手指纹实践

update

2024-03-18 add JA4，about JA4 seeJA4 初探

relevant

ja3

workerman