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~ - 『移动安全区』 - 吾爱破解 - LCG - LSG |安卓破解|病毒分析|www.52pojie.cn

前提条件

复制代码 隐藏代码一台 root 手机 frida 环境一套 还要会搜索（回复比较慢）

开启抓包

复制代码 隐藏代码`1. 手机中执行 tcpdump
tcpdump -i any -s 0 -w /sdcard/Download/capture.pcap

1. 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

复制代码 隐藏代码`// frida 命令选项 更多关于 frida 信息 可以查看 frida 官方信息 https://frida.re/docs/home/
C:\Users\User>frida -h
Usage: frida [options] target

Options:
—version show program’s version number and exit
-h, —help show this help message and exit
-D ID, —device=ID connect to device with the given ID
-U, —usb connect to USB device
-R, —remote connect to remote frida-server
-H HOST, —host=HOST connect to remote frida-server on HOST
-f FILE, —file=FILE spawn FILE
-F, —attach-frontmost
attach to frontmost application
-n NAME, —attach-name=NAME
attach to NAME
-p PID, —attach-pid=PID
attach to PID
—stdio=inherit|pipe stdio behavior when spawning (defaults to “inherit”)
—runtime=duk|v8 script runtime to use (defaults to “duk”)
—debug enable the Node.js compatible script debugger
-l SCRIPT, —load=SCRIPT
load SCRIPT
-P PARAMETERS_JSON, —parameters=PARAMETERS_JSON
Parameters as JSON, same as Gadget
-C CMODULE, —cmodule=CMODULE
load CMODULE
-c CODESHARE_URI, —codeshare=CODESHARE_URI
load CODESHARE_URI
-e CODE, —eval=CODE evaluate CODE
-q quiet mode (no prompt) and quit after -l and -e
—no-pause automatically start main thread after startup
-o LOGFILE, —output=LOGFILE
output to log file
—exit-on-error exit with code 1 after encountering any exception in
the SCRIPT`

复制代码 隐藏代码`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’)
)`

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）

复制代码 隐藏代码// 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

复制代码 隐藏代码// 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

[b]编辑 —> 首选项 —> Protocols—> TLS

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。

Wireshark 番外篇

[b]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。

pc 浏览器 sslkey 番外篇

复制代码 隐藏代码// 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"

致敬大佬

复制代码 隐藏代码@菱志漪 其实要感谢菱志漪大佬，没有他遇到的问题，我就不会深入去看研究这个问题，还要感谢 @肉师傅， 没有陈老师通俗易懂的讲解， 我压根找不到北。 【手动撒花~~~】

参考内容

复制代码 隐藏代码`Wireshark Tutorial: Display Filter Expressions
https://unit42.paloaltonetworks.com/using-wireshark-display-filter-expressions/

HTTPS Traffic Without the Key Log File
https://unit42.paloaltonetworks.com/wireshark-tutorial-decrypting-https-traffic/

The First Few Milliseconds of an HTTPS Connection
http://www.moserware.com/2009/06/first-few-milliseconds-of-https.html

Sniffing HTTPS Traffic in Chromium with Wireshark
https://adw0rd.com/2020/12/2/chromium-https-ssl-tls-sniffing-with-wireshark/en/`
https://www.52pojie.cn/thread-1405917-1-1.html