第一步
手机启动frida服务
第二步
手机打开要脱壳的app
第三步
运行脱壳代码
# Author: hluwa <hluwa888@gmail.com>
# HomePage: https://github.com/hluwa
# CreatedTime: 2020/1/7 20:57
import hashlib
import os
import random
import sys
try:
from shutil import get_terminal_size as get_terminal_size
except:
try:
from backports.shutil_get_terminal_size import get_terminal_size as get_terminal_size
except:
pass
import click
import frida
import logging
import traceback
logging.basicConfig(level=logging.INFO,
format="%(asctime)s %(levelname)s %(message)s",
datefmt='%m-%d/%H:%M:%S')
banner = """
----------------------------------------------------------------------------------------
____________ ___________ ___ ______ _______ _______
| ___| ___ _ _| _ / _ | _ ___ / / _
| |_ | |_/ / | | | | | / /_ ______| | | | |__ V /| | | |_ _ _ __ ___ _ __
| _| | / | | | | | | _ |______| | | | __| / | | | | | | | '_ ` _ | '_
| | | | _| |_| |/ /| | | | | |/ /| |___/ /^ |/ /| |_| | | | | | | |_) |
_| _| _|___/|___/ _| |_/ |___/ ____// /___/ __,_|_| |_| |_| .__/
| |
|_|
https://github.com/hluwa/FRIDA-DEXDump
----------------------------------------------------------------------------------------
"""
md5 = lambda bs: hashlib.md5(bs).hexdigest()
def show_banner():
try:
if get_terminal_size().columns >= len(banner.splitlines()[1]):
for line in banner.splitlines():
click.secho(line, fg=random.choice(['bright_red', 'bright_green', 'bright_blue', 'cyan', 'magenta']))
except:
pass
def get_all_process(device, pkgname):
return [process for process in device.enumerate_processes() if pkgname in process.name]
def search(api):
"""
"""
matches = api.scandex()
for info in matches:
click.secho("[DEXDump] Found: DexAddr={}, DexSize={}"
.format(info['addr'], hex(info['size'])), fg='green')
return matches
def dump(pkg_name, api, mds=None):
"""
"""
if mds is None:
mds = []
matches = api.scandex()
for info in matches:
try:
bs = api.memorydump(info['addr'], info['size'])
md = md5(bs)
if md in mds:
click.secho("[DEXDump]: Skip duplicate dex {}<{}>".format(info['addr'], md), fg="blue")
continue
mds.append(md)
if not os.path.exists("./" pkg_name "/"):
os.mkdir("./" pkg_name "/")
if bs[:4] != b"dexn":
bs = b"dexn035x00" bs[8:]
with open(pkg_name "/" info['addr'] ".dex", 'wb') as out:
out.write(bs)
click.secho("[DEXDump]: DexSize={}, DexMd5={}, SavePath={}/{}/{}.dex"
.format(hex(info['size']), md, os.getcwd(), pkg_name, info['addr']), fg='green')
except Exception as e:
click.secho("[Except] - {}: {}".format(e, info), bg='yellow')
def stop_other(pid, processes):
try:
for process in processes:
if process.pid == pid:
os.system("adb shell "su -c 'kill -18 {}'"".format(process.pid))
else:
os.system("adb shell "su -c 'kill -19 {}'"".format(process.pid))
except:
pass
def choose(pid=None, pkg=None, spawn=False, device=None):
if pid is None and pkg is None:
target = device.get_frontmost_application()
return target.pid, target.identifier
for process in device.enumerate_processes():
if (pid and process.pid == pid) or (pkg and process.name == pkg):
if not spawn:
return process.pid, process.name
else:
pkg = process.name
break
if pkg and spawn and device:
pid = device.spawn(pkg)
device.resume(pid)
return pid, pkg
raise Exception("Cannot found <{}> process".format(pid))
if __name__ == "__main__":
show_banner()
try:
device = frida.get_usb_device()
except:
device = frida.get_remote_device()
if not device:
click.secho("[Except] - Unable to connect to device.", bg='red')
exit()
pid = -1
pname = ""
try:
pid, pname = choose(device=device)
except Exception as e:
click.secho("[Except] - Unable to inject into process: {} in n{}".format(e, traceback.format_tb(
sys.exc_info()[2])[-1]), bg='red')
exit()
print(pname)
processes = get_all_process(device, pname)
mds = []
for process in processes:
logging.info("[DEXDump]: found target [{}] {}".format(process.pid, process.name))
stop_other(process.pid, processes)
session = device.attach(process.pid)
path = os.path.dirname(sys.argv[0])
path = path if path else "."
script = session.create_script(open(path "/agent.js").read())
script.load()
dump(pname, script.exports, mds=mds)
script.unload()
session.detach()
exit()
