意外发现的Android硬核https抓包, 在多个app亲测ok, 自定义ssl也无用哦~

前提条件

一台root手机
frida环境一套
还要会搜索(回复比较慢)

开启抓包

1. 手机中执行 tcpdump
tcpdump -i any -s 0 -w /sdcard/Download/capture.pcap

2. 手机没有tcpdump的
下载地址https://www.androidtcpdump.com/android-tcpdump/downloads
adb push tcpdump /data/local/tmp/ (如果遇到权限不够的,先push到sdcard/ 再移动过去)

2.1在手机中执行给权限
chmod 777 tcpdump

2.2继续执行1
./tcpdump -i any -s 0 -w /sdcard/Download/capture.pcap

hook app拿到sslkey

frida -U -f package -l ./sslkeyfilelog.js --no-pause
function startTLSKeyLogger(SSL_CTX_new, SSL_CTX_set_keylog_callback) {
    console.log("start----")
    function keyLogger(ssl, line) {
        console.log(new NativePointer(line).readCString());
    }
    const keyLogCallback = new NativeCallback(keyLogger, 'void', ['pointer', 'pointer']);

    Interceptor.attach(SSL_CTX_new, {
        onLeave: function(retval) {
            const ssl = new NativePointer(retval);
            const SSL_CTX_set_keylog_callbackFn = new NativeFunction(SSL_CTX_set_keylog_callback, 'void', ['pointer', 'pointer']);
            SSL_CTX_set_keylog_callbackFn(ssl, keyLogCallback);
        }
    });
}
startTLSKeyLogger(
    Module.findExportByName('libssl.so', 'SSL_CTX_new'),
    Module.findExportByName('libssl.so', 'SSL_CTX_set_keylog_callback')
)
// https://codeshare.frida.re/@k0nserv/tls-keylogger/

将抓包文件拿到pc

将/sdcard/Download/capture.pcap pull 到pc

保存frida输出的打印信息到sslkey.txt(还没做到一键傻瓜化)

// 格式是这样紫的, 不要参杂别的哟~
CLIENT_RANDOM 557e6dc49faec93dddd41d8c55d3a0084c44031f14d66f68e3b7fb53d3f9586d 886de4677511305bfeaee5ffb072652cbfba626af1465d09dc1f29103fd947c997f6f28962189ee809944887413d8a20
CLIENT_RANDOM e66fb5d6735f0b803426fa88c3692e8b9a1f4dca37956187b22de11f1797e875 65a07797c144ecc86026a44bbc85b5c57873218ce5684dc22d4d4ee9b754eb1961a0789e2086601f5b0441c35d76c448
CLIENT_RANDOM e1c1dcaaf73a8857ee60f5b38979084c3e95fdebd9791bbab985a8f954132426 41dcf3d5e41cb469494bf5014a1ecca9f40124f5728895265fadd38f8dc9d5ac15c5fa6588c1ea68f38476297fe76183
CLIENT_RANDOM 66c4f37afb2152e3837c8a7c48ce51e8307e6739e1fe3efc542887bbcae4f02a bbafe4881084570af01bed59f95bfcf7bc49d2e55acbc7fe33c1e06f8ff0bc2e747c2c428e7cd13f1c77c2141085f951
CLIENT_RANDOM 8d0d92154ee030486a2b13f9441f85ef33c5e06732fbb06a1ac81fe34b6f2ce3 8270b34eee784e7f7de45f39af36f26e6abf99bb52fa8350945e3ebf79dc1c53a0693c24b0780ce3a54d39fd4b5b5149
CLIENT_RANDOM b5d58899346db525f14312cfb52c1247ed7adb710ae43428bd331ce27d77dbc1 9effd5b469ef6fdf7a056ea50fc3ff0fdf9fa40ae709805bea8678ddce404f211ed534623876a5c616f3e7bc43121f48
CLIENT_RANDOM af1b3f9ba0b4c27756c93595eb54cac6f0d8c6e9e4f0fcb1a36c45f0cd12060d 696a6fff39bf6c9863901a2145703de948c37e1abf6b4c03628118bee11c292239304ee020c71ff31a293fc6b9439364
CLIENT_RANDOM e2a3d8e6b638976aa27c8cf031be5e6b03cf7ffa573be101816d5103025d404b 2b006379423d7252c864a129b6c5a693b75d477dc5d3f894af5f02db755c4f6dd54470b659882871c62ce002792e211a
CLIENT_RANDOM 1c8cfe911e2111d80dc81c275c791c04467e8d7bca16963acec6a20051429981 bf08334d973d44d80c8f4542c2356a5fd9e0d390afde0374179cc81dd82aaa15aae52604988e9c9616ad0795c79c81ed

打开.pcap文件 进入Wireshark

// Wireshark快速过滤
(http.request or tls.handshake.type eq 1) and !(ssdp)
// 快速参考
// https://www.jianshu.com/p/5525594600db

设置Wireshark tls

编辑--> 首选项--> Protocols--> TLS

img

img

img

选择到tls 后将之前的sslkey.txt导入下。 再使用下前面的过滤命令, 正常情况下, 现在就能正常看到了。

img

Wireshark 番外篇

编辑-->首选项-->外观-->布局
设置完这个, 就也和我一样能看到教学图了, 一下子友好很多。
img

img

pc浏览器sslkey 番外篇

// 一样要把key导入哟, 不然Wireshark怎么会知道呢?
chrome.exe --ssl-version-max=tls1.3  --ssl-key-log-file="./ssl_keys.txt"