docs(huya): 模拟器存活闪退诊断报告与 Frida 探测脚本证据

- 诊断报告: attach 主进程静默退出/EGL 崩溃, 仅约 4s 窗口可抓帧
- scripts: attach/spawn/hook/emu 系列 Frida 脚本与抓帧/验证工具
- evidence: identity/reqchain/frame/inputbuf/magic_buf/propedge 抓取样本,
  emu_* 存活对比, diag_* 策略实验, baseline 裸测基准
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#!/usr/bin/env python3
"""模拟器抓包 v11: B组优先三策略 (基于 diag E0-E7 实验结论).
结论回顾 (GC3VE/Android12/frida15.2.2):
- 纯 spawn→resume (不attach) = 存活, 但无 hook 能力 (B组/E3, 多次3/3存活)
- 任何 attach (挂起中/延迟, 有无脚本) = 被杀: 空attach静默_exit / attach+bypass=EGL崩
- 历史上 spawn+挂起attach+bypass 曾抓到 dfpReport+actionV, 但 App 随后必崩 (抢窗口)
本脚本提供三种模式:
zero (默认) 纯B组: spawn→立即resume→存活观察 (无hook, 验证App真能活/验证码可用)
race B组+延迟attach: resume后2s attach+bypass+SSLhook, 抢dfp窗口 (接受闪退)
stale 旧法对照: 挂起中加载 art_callsite+mask 再resume (复现历史成功路径)
用法: python3 emu_hook_zero_suspend.py [--mode zero|race|stale] [--rounds N] [--out path]
"""
from pathlib import Path
import frida, time, json, re, subprocess, sys, argparse
REMOTE = "127.0.0.1:31878"
ADB = ["adb", "-s", "127.0.0.1:5555"]
PACKAGE = "com.duowan.kiwi"
RE = Path("/Users/yml/codes/Reverse-Engineering-Agent-Universal-v3.0")
MAIN_JS = r"""
'use strict';
send({type:'armed', t:Date.now()});
function hexb(p,n){try{return Array.from(new Uint8Array(p.readByteArray(n))).map(b=>('0'+b.toString(16)).slice(-2)).join('');}catch(e){return '';}}
function head(p,n){try{return p.readCString(n);}catch(e){return '';}}
var n=0;
try{
var r=new ApiResolver('module');
r.enumerateMatchesSync('exports:*!SSL_write').forEach(function(m){
Interceptor.attach(m.address,{onEnter:function(a){
var len=a[2].toInt32();
if(len<50||len>50000)return;
var h=head(a[1],Math.min(len,1500));
if(h.indexOf('dfpReport')>=0||h.indexOf('dckey')>=0){
n++; send({cls:h.indexOf('dfpReport')>=0?'dfpReport':'dckey',n:n,len:len,t:Date.now(),hex:hexb(a[1],len)});
}
}});
});
send({type:'hooked', t:Date.now()});
}catch(e){send({type:'err',e:String(e)});}
try{
var r2=new ApiResolver('module');
r2.enumerateMatchesSync('exports:*!SSL_read').forEach(function(m){
Interceptor.attach(m.address,{onEnter:function(a){this.buf=a[1];},
onLeave:function(ret){
var nn=ret.toInt32();
if(nn<=0||nn>4000)return;
send({type:'resp',len:nn,hex:hexb(this.buf,nn),t:Date.now()});
}});
});
send({type:'readhooked'});
}catch(e){send({type:'readerr',e:String(e)});}
"""
def sh(*a): return subprocess.run(a, capture_output=True, text=True)
def adb(*a): return sh(*ADB, *a)
def main_pid():
r = adb("shell", "pidof", PACKAGE)
for p in r.stdout.strip().split():
rr = adb("shell", "cat", f"/proc/{p}/cmdline")
if rr.stdout.strip("\x00").strip() == PACKAGE:
return int(p)
return None
def detach_cb(reason, detail, tag=""):
print(f" [detached:{tag}] reason={reason} detail={str(detail)[:120]}", flush=True)
def main():
ap = argparse.ArgumentParser()
ap.add_argument("--mode", default="zero", choices=["zero", "race", "stale"])
ap.add_argument("--out", default="/Users/yml/codes/douyu_login_py/evidence/emu_hook_v11.json")
ap.add_argument("--rounds", type=int, default=2)
args = ap.parse_args()
out_path = Path(args.out)
d = frida.get_device_manager().add_remote_device(REMOTE)
print(f"[*] mode={args.mode} rounds={args.rounds} OUT={out_path}", flush=True)
all_events = []
for rnd in range(1, args.rounds + 1):
adb("shell", "am", "force-stop", PACKAGE)
time.sleep(1.2)
adb("shell", "logcat", "-c")
pid = None
session = None
try:
pid = d.spawn([PACKAGE])
t_spawn = time.time()
if args.mode == "stale":
# 旧法: 挂起中加载2个脚本再resume
session = d.attach(pid)
session.on('detached', lambda r, dd, t=f"[r{rnd}]": detach_cb(r, dd, t))
for name in ("bypass_msaoaid_maps_art_callsite.js", "mask_frida_maps_only.js"):
sc = session.create_script((RE/"evidence/scripts"/name).read_text()); sc.load()
suspend_ms = (time.time() - t_spawn) * 1000
d.resume(pid)
print(f"[r{rnd}] stale: spawn pid={pid} 挂起{suspend_ms:.0f}ms(2脚本) resumed", flush=True)
time.sleep(0.5)
else:
# zero/race: 先立即 resume (B组存活)
d.resume(pid)
print(f"[r{rnd}] spawn pid={pid} 立即resumed (B组存活)", flush=True)
if args.mode == "race":
time.sleep(2.0)
t_att = time.time()
session = d.attach(pid)
session.on('detached', lambda r, dd, t=f"[r{rnd}]": detach_cb(r, dd, t))
for name in ("bypass_msaoaid_maps_art_callsite.js", "mask_frida_maps_only.js"):
sc = session.create_script((RE/"evidence/scripts"/name).read_text()); sc.load()
print(f"[r{rnd}] race: attach at +{(time.time()-t_spawn)*1000:.0f}ms +2脚本 +{(time.time()-t_att)*1000:.0f}ms", flush=True)
events = []
got_dfp = [False]
actionVs = []
def on_main(m, dta):
if m.get('type') == 'error':
return
p = m.get('payload') or {}
t = p.get('type')
if t == 'hooked':
print(f"[r{rnd}] SSL_write hooked", flush=True)
elif 'cls' in p:
print(f"[r{rnd}] {p['cls']} len={p['len']}", flush=True)
events.append(p); all_events.append(p)
if p['cls'] == 'dfpReport': got_dfp[0] = True
elif t == 'resp':
av = re.search(rb'actionV\(([0-9a-f]{40})', bytes.fromhex(p.get('hex') or ''))
mark = f" actionV={av.group(1).decode()}" if av else ""
if av: actionVs.append(av.group(1).decode())
print(f"[r{rnd}] RESP len={p['len']}{mark}", flush=True)
events.append(p); all_events.append(p)
if session:
sc = session.create_script(MAIN_JS)
sc.on('message', on_main)
sc.load()
# 存活监控 (死因判定: crash buffer 有记录=EGL崩, 无=静默_exit)
t0 = time.time()
died_at = None
while time.time() - t0 < 30:
time.sleep(2)
mp = main_pid()
if mp is None:
died_at = time.time() - t0
break
if mp != pid:
print(f"[r{rnd}] pid变化 {pid}->{mp} (KeepAlive重启)", flush=True)
died_at = time.time() - t0
break
if got_dfp[0] and time.time() - t0 > 15:
break
cr = adb("shell", "logcat", "-d", "-b", "crash", "-t", "20").stdout
crashed = bool(re.search(r"Fatal|Abort message|signal \d", cr))
print(f"[r{rnd}] 结束: 存活={died_at is None} 死后至+{round(died_at,1) if died_at else '-'} 崩={crashed} 事件={len(events)} actionV={actionVs[:2]}", flush=True)
try:
if session: session.detach()
except Exception: pass
try: d.kill(pid)
except Exception: pass
except Exception as e:
print(f"[r{rnd}] ERR {repr(e)[:140]}", flush=True)
try:
if session: session.detach()
except Exception: pass
try: d.kill(pid)
except Exception: pass
time.sleep(1.5)
out_path.write_text(json.dumps(all_events, ensure_ascii=False, indent=1))
print(f"[*] 结束 事件={len(all_events)} -> {out_path}", flush=True)
if __name__ == "__main__":
main()