Files
frida-frida-python/examples/child_gating.py
T
2019-05-10 21:28:34 +02:00

85 lines
2.8 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import print_function
import threading
import frida
from frida_tools.application import Reactor
class Application(object):
def __init__(self):
self._stop_requested = threading.Event()
self._reactor = Reactor(run_until_return=lambda reactor: self._stop_requested.wait())
self._device = frida.get_local_device()
self._sessions = set()
self._device.on("child-added", lambda child: self._reactor.schedule(lambda: self._on_child_added(child)))
self._device.on("child-removed", lambda child: self._reactor.schedule(lambda: self._on_child_removed(child)))
self._device.on("output", lambda pid, fd, data: self._reactor.schedule(lambda: self._on_output(pid, fd, data)))
def run(self):
self._reactor.schedule(lambda: self._start())
self._reactor.run()
def _start(self):
argv = ["/bin/sh", "-c", "cat /etc/hosts"]
env = {
"BADGER": "badger-badger-badger",
"SNAKE": "mushroom-mushroom",
}
print("✔ spawn(argv={})".format(argv))
pid = self._device.spawn(argv, env=env, stdio='pipe')
self._instrument(pid)
def _stop_if_idle(self):
if len(self._sessions) == 0:
self._stop_requested.set()
def _instrument(self, pid):
print("✔ attach(pid={})".format(pid))
session = self._device.attach(pid)
session.on("detached", lambda reason: self._reactor.schedule(lambda: self._on_detached(pid, session, reason)))
print("✔ enable_child_gating()")
session.enable_child_gating()
print("✔ create_script()")
script = session.create_script("""\
Interceptor.attach(Module.getExportByName(null, 'open'), {
onEnter: function (args) {
send({
type: 'open',
path: Memory.readUtf8String(args[0])
});
}
});
""")
script.on("message", lambda message, data: self._reactor.schedule(lambda: self._on_message(pid, message)))
print("✔ load()")
script.load()
print("✔ resume(pid={})".format(pid))
self._device.resume(pid)
self._sessions.add(session)
def _on_child_added(self, child):
print("⚡ child_added: {}".format(child))
self._instrument(child.pid)
def _on_child_removed(self, child):
print("⚡ child_removed: {}".format(child))
def _on_output(self, pid, fd, data):
print("⚡ output: pid={}, fd={}, data={}".format(pid, fd, repr(data)))
def _on_detached(self, pid, session, reason):
print("⚡ detached: pid={}, reason='{}'".format(pid, reason))
self._sessions.remove(session)
self._reactor.schedule(self._stop_if_idle, delay=0.5)
def _on_message(self, pid, message):
print("⚡ message: pid={}, payload={}".format(pid, message["payload"]))
app = Application()
app.run()