106 lines
3.4 KiB
Python
106 lines
3.4 KiB
Python
#!/usr/bin/env python3
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"""扫描堆中"加密前的明文"：设备采集数据(含 android- 开头、JSON/键值)。
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dfpReport 明文 = [魔数][时间戳][设备数据], 加密前明文在堆里。
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扫描含 'android' 或 'deviceinfo' 等键值的大块可读内存, dump 前后 8KB。
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"""
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from __future__ import annotations
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import json
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import time
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from pathlib import Path
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import frida
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RE = Path("/Users/yml/codes/Reverse-Engineering-Agent-Universal-v3.0")
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OUT = Path("/Users/yml/codes/douyu_login_py/evidence/dfp_plain_scan.json")
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JS = r"""
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'use strict';
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Process.setExceptionHandler(function(d){ return true; });
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send({type:'armed'});
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function tryRead(p, n){
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try{ return p.readUtf8String(n); }catch(e){ return null; }
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}
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function scan(){
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try{
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Process.enumerateRanges('r--').forEach(function(r){
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if (r.size > 1024*1024*256) return;
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try{
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// 搜 "android-" 明文 (设备 UA 前缀, 加密前会出现)
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var hits = Memory.scanSync(r.base, r.size, '61 6e 64 72 6f 69 64 2d');
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hits.forEach(function(x){
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var s = tryRead(x.address, 300);
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if (s && s.length > 30 && /[a-z0-9]{3,}/.test(s)) {
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send({type:'plain', addr:String(x.address), s:s.slice(0, 300)});
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}
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});
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// 搜 "deviceinfo" 键
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var hits2 = Memory.scanSync(r.base, r.size, '64 65 76 69 63 65 69 6e 66 6f');
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hits2.forEach(function(x){
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var s = tryRead(x.address, 300);
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if (s) send({type:'plain', addr:String(x.address), s:s.slice(0, 300)});
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});
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}catch(e){}
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});
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}catch(e){}
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send({type:'tick'});
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}
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setInterval(function(){ try{ scan(); }catch(e){} }, 4000);
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"""
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def main():
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device = frida.get_device_manager().add_remote_device("127.0.0.1:31877")
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pid = device.spawn(["com.duowan.kiwi"])
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print(f"[*] spawned pid={pid}", flush=True)
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session = device.attach(pid)
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events = []
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def on_message(message, data):
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if message.get("type") == "error":
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print("[JS-ERR]", str(message)[:200], flush=True); return
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if message.get("type") != "send":
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return
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p = message.get("payload") or {}
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t = p.get("type")
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if t == "plain":
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s = p.get('s', '')
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# 过滤明显的噪音 (路径/类名)
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if '/data/app' in s or 'library' in s or '.jar' in s: return
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key = p.get('addr')
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if any(e.get('addr') == key for e in events): return
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events.append(p)
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OUT.write_text(json.dumps(events, ensure_ascii=False, indent=1))
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print(f"[plain] @{key}: {s[:180]!r}", flush=True)
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script = session.create_script(JS)
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script.on("message", on_message)
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script.load()
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print("[*] 主JS 已装载(resume前), 加载 bypass + resume", flush=True)
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session.create_script(
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(RE / "evidence/scripts/bypass_msaoaid_maps_art_callsite.js").read_text()
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).load()
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session.create_script(
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(RE / "evidence/scripts/mask_frida_maps_only.js").read_text()
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).load()
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device.resume(pid)
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time.sleep(11)
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session.create_script(
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(RE / "evidence/scripts/patch_guard_block_termination.js").read_text()
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).load()
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print("[*] 已 resume, 扫描明文 (4s轮询), 请触发登录, 命中即 pkill", flush=True)
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try:
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while True:
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time.sleep(5)
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except KeyboardInterrupt:
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pass
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print(f"[*] 结束, {len(events)} 条 -> {OUT}", flush=True)
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if __name__ == "__main__":
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main() |