Files
live-hub-py/tools/frida/hook_str_kcnx2.js
T
yml2213 b76ec96573 feat(huya): R32 8密文集+三重钩全零调用定论+known-pair校准
- 8活体POST存 evidence (magic 10B@70 一致, 头同族7cda11)
- 25 JNI + 2 XTEA核 + 2 Java = 全0调用 (报告=隐藏native路径!)
- rtk_known/ 44B known pair (native ct 45542bb3...) 后续差分用
2026-08-29 09:01:51 +08:00

180 lines
8.0 KiB
JavaScript

'use strict';
function emit(row) { try { send(row); } catch (e) {} }
function btOk(ctx) { try { return Thread.backtrace(ctx, Backtracer.ACCURATE).slice(0, 40).map(a => { const m = Process.findModuleByAddress(a); return m ? m.name + '!' + a.sub(m.base) : a.toString(); }).join(' <- '); } catch (e) { return ''; } }
let fired = false, writes = 0;
for (const mod of Process.enumerateModules()) {
let addr = null;
try { addr = mod.getExportByName('SSL_write'); } catch (e) {}
if (addr === null) continue;
Interceptor.attach(addr, {
onEnter(args) {
writes++;
if (fired) return;
if (writes % 40 === 0) emit({ event: 'ssl-heartbeat', module: mod.name, writes });
const buf = args[1], num = args[2].toInt32();
if (num < 60) return;
try {
const u = new Uint8Array(buf.readByteArray(Math.min(num, 30000)));
// 编码成可检索串 (简化: 只查 ascii 子串)
let s = '';
for (let i = 0; i < u.length; i++) s += (u[i] >= 32 && u[i] < 127) ? String.fromCharCode(u[i]) : '.';
if (s.indexOf('dfpReport') < 0 && s.indexOf('hyudbwebuif') < 0) return;
fired = true;
const hex = Array.from(u).map(x => x.toString(16).padStart(2, '0')).join('');
emit({ event: 'str-magic', module: mod.name, num, full: hex, bt: btOk(this.context) });
// ---- co-located: 命中后立即在 turing 区域 + 全堆扫第二处魔数/明文特征 ----
const MAG = [0x57, 0x18, 0x82, 0xcf, 0x66, 0x4b, 0xb3, 0x94, 0x01, 0xee];
setTimeout(() => {
try {
const regions = [];
for (const m of Process.enumerateModules()) {
if (/turing|Turin/.test(m.name)) regions.push({ name: m.name, p: m.base, n: Math.min(m.size, 2 * 1024 * 1024) });
}
// 附加: 加载库里的映射区域 (含 .turing.dat mmap) — 用 Process.enumerateRanges 'r--' 太广, 只挑 map 文件路径含 turing 的
for (const r of Process.enumerateRanges('r--')) {
try {
const f = r.file ? r.file.path : '';
if (/turing|\.dat/.test(f) && !/\.so/.test(f)) regions.push({ name: f.slice(-40), p: r.base, n: Math.min(r.size, 512 * 1024) });
} catch (e) {}
}
let nFound = 0;
for (const rg of regions) {
try {
const buf = new Uint8Array(rg.p.readByteArray(rg.n));
for (let i = 0; i + 10 < rg.n; i++) {
let ok = true;
for (let j = 0; j < 10; j++) if (buf[i+j] !== MAG[j]) { ok = false; break; }
if (!ok) continue;
nFound++;
if (nFound > 12) break;
// 邻域 ASCII 提取
const as = [];
for (let k = -128; k < 1024; k += 64) {
try {
const c = Array.from(new Uint8Array(rg.p.add(i + k).readByteArray(64)));
const str = c.map(x => (x >= 32 && x < 127) ? String.fromCharCode(x) : '.').join('');
if (/[A-Za-z0-9_\-\.\/:]{10,}/.test(str)) as.push({ k, s: str });
} catch (e) {}
}
emit({ event: 'co-magic', mod: rg.name, off: '0x' + i.toString(16), ascii: as.slice(0, 10) });
}
} catch (e) {}
}
emit({ event: 'co-done', n: nFound, regions: regions.length });
} catch (e) { emit({ event: 'co-err', msg: String(e).slice(0, 120) }); }
}, 0);
} catch (e) {}
},
});
emit({ event: 'ssl-hooked', module: mod.name });
}
// ===== 附加: Java 密钥钩子 (Cprivate.b 明文+密钥 / Perseus.a 会话密钥) =====
setTimeout(function(){
function S(o){ try { send(o); } catch(e){} }
try {
Java.perform(function(){
var hooked = 0;
try {
var Cpr = null, Melon = null;
Java.enumerateClassLoaders({
onMatch: function(loader){
try {
Java.classFactory.loader = loader;
var c = Java.use('com.tencent.turingfd.sdk.ams.ga.private');
if (c) { Cpr = c; Melon = Java.use('com.tencent.turingfd.sdk.ams.ga.Melon'); }
} catch(e){}
},
onComplete: function(){}
});
if (!Cpr) { Cpr = Java.use('com.tencent.turingfd.sdk.ams.ga.private'); Melon = Java.use('com.tencent.turingfd.sdk.ams.ga.Melon'); }
var Melon = Java.use('com.tencent.turingfd.sdk.ams.ga.Melon');
Cpr.b.overload('[B','[B').implementation = function(a, b){
var out = this.b(a, b);
try {
S({event:'cpr-b', dlen:a.length, klen:b.length,
key:Melon.a(b), dhead:(Melon.a(a)||'').substring(0,300)});
} catch(e){ S({event:'cpr-err', e:String(e)}); }
return out;
};
hooked++;
} catch(e){ S({event:'cpr-nohook', e:String(e).substring(0,120)}); }
try {
var Perseus = Java.use('com.tencent.turingfd.sdk.ams.ga.Perseus');
var Guava = Java.use('com.tencent.turingfd.sdk.ams.ga.Guava');
Perseus.a.implementation = function(){
this.a();
try {
var g = this.b.value;
if (g) S({event:'perseus-key', c:g.c.value, b1:g.a.value, blen: g.b.value ? g.b.value.length : -1});
} catch(e){}
};
hooked++;
} catch(e2){ S({event:'cpr-noperseus', e:String(e2).substring(0,120)}); }
S({event:'cpr-installed', hooked:hooked});
});
} catch(e) { S({event:'cpr-perm', e:String(e).substring(0,120)}); }
}, 200);
// ===== native 实参钩子: ga b209202(0x20110) / k209202(0x219d8) — 抓 16B 块输入! =====
setTimeout(function(){
try {
var mod = Process.findModuleByName('libturingga.so');
if (!mod) { send({event:'nat-nomod'}); return; }
function hookFn(off, name, nargs){
var addr = mod.base.add(off);
try {
Interceptor.attach(addr, {
onEnter: function(args){
var regs = '';
for (var i=2;i<Math.min(nargs,7);i++) regs += ' a'+i+'='+args[i].toString(16);
send({event:'nat-ent', name:name, regs:regs});
this.t = Date.now();
},
onLeave: function(ret){
send({event:'nat-ret', name:name, ret:ret.toString(16), dt:Date.now()-this.t});
}
});
} catch(e){ send({event:'nat-fail', name:name, e:String(e).substring(0,80)}); }
}
hookFn(0x20110, 'b209202', 7);
hookFn(0x219d8, 'k209202', 4);
hookFn(0x1f918, 'xtea-enc', 5);
send({event:'nat-hooked'});
} catch(e){ send({event:'nat-exc', e:String(e).substring(0,100)}); }
}, 200);
// ===== 核心: XTEA 核心内部调用钩 — 抓密钥指针! =====
setTimeout(function(){
function findBase(name){
try { return Process.findModuleByName(name); } catch(e){ return null; }
}
function hookXtea(mod, off, name, inOffset){
if (!mod) { send({event:'xtea-nomod', name:name}); return; }
var addr = mod.base.add(off);
try {
Interceptor.attach(addr, {
onEnter: function(args){
try {
// XTEA: a1=buf(输入), a2=±n, a3=key!
var n = args[1].toInt32();
var kp = args[2];
var key = kp.readByteArray(16);
var khex = Array.prototype.map.call(new Uint8Array(key), function(x){return ('0'+x.toString(16)).slice(-2)}).join('');
// buf 头 (inOffset 字节开读: 输入轮回)
var bh = '';
try {
var inb = args[inOffset].readByteArray(8);
bh = Array.prototype.map.call(new Uint8Array(inb), function(x){return ('0'+x.toString(16)).slice(-2)}).join('');
} catch(e){}
send({event:'xtea-got', name:name, n:n, key:khex, bufH:bh});
} catch(e){ send({event:'xtea-err', name:name, e:String(e).substring(0,80)}); }
}
});
send({event:'xtea-hooked', name:name});
} catch(e){ send({event:'xtea-fail', name:name, e:String(e).substring(0,80)}); }
}
hookXtea(findBase('libturingmfa.so'), 0x24D58, 'mfa-xtea', 0);
hookXtea(findBase('libturingga.so'), 0x1F1CC, 'ga-xtea', 0);
}, 200);