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x64dbg 自动化控制插件





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一款 x64dbg 自动化控制插件,通过Python控制X64dbg,实现了远程动态调试,解决了逆向工作者分析漏洞,寻找指令片段,原生脚本不够强大的问题,通过与Python相结合利用Python语法的灵活性以及丰富的第三方库,提高分析效率,实现自动化分析代码。


插件下载好以后,请将该插件复制到x64dbg目录下的plugins目录下,程序运行后会自动加载插件文件。

当插件加载成功后,会在日志位置看到具体的绑定信息以及输出调试,该插件并不会在插件栏显示。

image

如果需要远程调试,则只需要在初始化MyDebug()类是传入对端IP地址即可,如果不填写参数则默认使用127.0.0.1地址,请确保对端放行了6589端口,否则无法连接。

image

运行x64dbg程序并手动载入需要分析的可执行文件,然后我们可以通过connect()方法连接到调试器,连接后会创建一个持久会话直到python脚本结束则连接会被强制断开,在此期间可调用is_connect()检查该链接是否还存在,具体代码如下所示。

from LyScript32 import MyDebug

if __name__ == "__main__":
    # 初始化
    dbg = MyDebug()

    # 连接到调试器
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    # 检测套接字是否还在
    ref = dbg.is_connect()
    print("是否在连接: ", ref)

    dbg.close()

寄存器类

get_register() 函数: 该函数主要用于实现,对特定寄存器的获取操作,用户需传入需要获取的寄存器名字即可。

  • 参数1:传入寄存器字符串

可用范围:"DR0", "DR1", "DR2", "DR3", "DR6", "DR7", "EAX", "AX", "AH", "AL", "EBX", "BX", "BH", "BL", "ECX", "CX", "CH", "CL", "EDX", "DX", "DH", "DL", "EDI", "DI", "ESI", "SI", "EBP", "BP", "ESP", "SP", "EIP"

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    eax = dbg.get_register("eax")
    ebx = dbg.get_register("ebx")

    print("eax = {}".format(hex(eax)))
    print("ebx = {}".format(hex(ebx)))

    dbg.close()

如果您使用的是64位插件,则寄存器的支持范围将变为E系列加R系列。

可用范围扩展: "DR0", "DR1", "DR2", "DR3", "DR6", "DR7", "EAX", "AX", "AH", "AL", "EBX", "BX", "BH", "BL", "ECX", "CX", "CH", "CL", "EDX", "DX", "DH", "DL", "EDI", "DI", "ESI", "SI", "EBP", "BP", "ESP", "SP", "EIP", "RAX", "RBX", "RCX", "RDX", "RSI", "SIL", "RDI", "DIL", "RBP", "BPL", "RSP", "SPL", "RIP", "R8", "R8D", "R8W", "R8B", "R9", "R9D", "R9W", "R9B", "R10", "R10D", "R10W", "R10B", "R11", "R11D", "R11W", "R11B", "R12", "R12D", "R12W", "R12B", "R13", "R13D", "R13W", "R13B", "R14", "R14D", "R14W", "R14B", "R15", "R15D", "R15W", "R15B"

from LyScript64 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    rax = dbg.get_register("rax")
    eax = dbg.get_register("eax")
    ax = dbg.get_register("ax")

    print("rax = {} eax = {} ax ={}".format(hex(rax),hex(eax),hex(ax)))

    r8 = dbg.get_register("r8")
    print("获取R系列寄存器: {}".format(hex(r8)))

    dbg.close()

set_register() 函数: 该函数实现设置指定寄存器参数,同理64位将支持更多寄存器的参数修改。

  • 参数1:传入寄存器字符串
  • 参数2:十进制数值

可用范围:"DR0", "DR1", "DR2", "DR3", "DR6", "DR7", "EAX", "AX", "AH", "AL", "EBX", "BX", "BH", "BL", "ECX", "CX", "CH", "CL", "EDX", "DX", "DH", "DL", "EDI", "DI", "ESI", "SI", "EBP", "BP", "ESP", "SP", "EIP"

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    eax = dbg.get_register("eax")
    
    dbg.set_register("eax",100)

    print("eax = {}".format(hex(eax)))

    dbg.close()

get_flag_register() 函数: 用于获取某个标志位参数,返回值只有真或者假。

  • 参数1:寄存器字符串

可用寄存器范围:"ZF", "OF", "CF", "PF", "SF", "TF", "AF", "DF", "IF"

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    cf = dbg.get_flag_register("cf")
    print("标志: {}".format(cf))
    
    dbg.close()

set_flag_register() 函数: 用于设置某个标志位参数,返回值只有真或者假。

  • 参数1:寄存器字符串
  • 参数2:[ 设置为真 True] / [设置为假 False]

可用寄存器范围:"ZF", "OF", "CF", "PF", "SF", "TF", "AF", "DF", "IF"

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    zf = dbg.get_flag_register("zf")
    print(zf)

    dbg.set_flag_register("zf",False)

    zf = dbg.get_flag_register("zf")
    print(zf)

    dbg.close()

调试类

set_debug() 函数: 用于影响调试器,例如前进一次,后退一次,暂停调试,终止等。

  • 参数1: 传入需要执行的动作

可用动作范围:[暂停 Pause] [运行 Run] [步入 StepIn] [步过 StepOut] [到结束 StepOver] [停止 Stop] [等待 Wait]

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    while True:
        dbg.set_debug("StepIn")
        
        eax = dbg.get_register("eax")
        
        if eax == 0:
            print("找到了")
            break
        
    dbg.close()

set_debug_count() 函数: 该函数是set_debug()函数的延续,目的是执行自动步过次数。

  • 参数1:传入需要执行的动作
  • 参数2:执行重复次数

可用动作范围:[暂停 Pause] [运行 Run] [步入 StepIn] [步过 StepOut] [到结束 StepOver] [停止 Stop] [等待 Wait]

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    dbg.set_debug_count("StepIn",10)

    dbg.close()

is_debugger() /is_running() 函数: is_debugger可用于验证当前调试器是否处于调试状态,is_running则用于验证是否在运行。

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.is_debugger()
    print(ref)

    ref = dbg.is_running()
    print(ref)

    dbg.close()

set_breakpoint() 函数: 设置断点与取消断点进行了分离,设置断点只需要传入十进制内存地址。

  • 参数1:传入内存地址(十进制)
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    ref = dbg.set_breakpoint(eip)

    print("设置状态: {}".format(ref))
    dbg.close()

delete_breakpoint() 函数: 该函数传入一个内存地址,可取消一个内存断点。

  • 参数1:传入内存地址(十进制)
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    ref = dbg.set_breakpoint(eip)
    print("设置状态: {}".format(ref))

    del_ref = dbg.delete_breakpoint(eip)
    print("取消状态: {}".format(del_ref))

    dbg.close()

check_breakpoint() 函数: 用于检查下过的断点是否被命中,命中返回True否则返回False。

  • 参数1:传入内存地址(十进制)
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    ref = dbg.set_breakpoint(eip)
    print("设置状态: {}".format(ref))

    is_check = dbg.check_breakpoint(4134331)
    print("是否命中: {}".format(is_check))

    dbg.close()

get_all_breakpoint() 函数: 用于获取当前调试程序中,所有下过的断点信息,包括是否开启,命中次数等。

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    ref = dbg.get_all_breakpoint()
    print(ref)
    dbg.close()

set_hardware_breakpoint() 函数: 用于设置一个硬件断点,硬件断点在32位系统中最多设置4个。

  • 参数1:内存地址(十进制)
  • 参数2:断点类型

断点类型可用范围:[类型 0 = HardwareAccess / 1 = HardwareWrite / 2 = HardwareExecute]

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug(address="127.0.0.1",port=6666)
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")

    ref = dbg.set_hardware_breakpoint(eip,2)
    print(ref)

    dbg.close()

delete_hardware_breakpoint() 函数: 用于删除一个硬件断点,只需要传入地址即可,无需传入类型。

  • 参数1:内存地址(十进制)

断点类型可用范围:[类型 0 = HardwareAccess / 1 = HardwareWrite / 2 = HardwareExecute]

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug(address="127.0.0.1",port=6666)
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")

    ref = dbg.set_hardware_breakpoint(eip,2)
    print(ref)

    # 删除断点
    ref = dbg.delete_hardware_breakpoint(eip)
    print(ref)

    dbg.close()

模块类

get_module_base() 函数: 该函数可用于获取程序载入的指定一个模块的基地址。

  • 参数1:模块名字符串
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    
    user32_base = dbg.get_module_base("user32.dll")
    print(user32_base)

    dbg.close()

get_all_module() 函数: 用于输出当前加载程序的所有模块信息,以字典的形式返回。

  • 参数:无参数
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_all_module()

    for i in ref:
        print(i)

    print(ref[0])
    print(ref[1].get("name"))
    print(ref[1].get("path"))

    dbg.close()

get_local_() 系列函数: 获取当前EIP所在模块基地址,长度,以及内存属性,此功能无参数传递,获取的是当前EIP所指向模块的数据。

  • dbg.get_local_base() 获取模块基地址
  • dbg.get_local_size() 获取模块长度
  • dbg.get_local_protect() 获取模块保护属性
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_local_base()
    print(hex(ref))

    ref2 = dbg.get_local_size()
    print(hex(ref2))

    ref3 = dbg.get_local_protect()
    print(ref3)

    dbg.close()

get_module_from_function() 函数: 获取指定模块中指定函数的内存地址,可用于验证当前程序在内存中指定函数的虚拟地址。

  • 参数1:模块名
  • 参数2:函数名

成功返回地址,失败返回false

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_module_from_function("user32.dll","MessageBoxW")
    print(hex(ref))

    ref2 = dbg.get_module_from_function("kernel32.dll","test")
    print(ref2)

    dbg.close()

get_module_from_import() 函数: 获取当前程序中指定模块的导入表信息,输出为列表嵌套字典。

  • 参数1:传入模块名称
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_module_from_import("ucrtbase.dll")
    print(ref)

    ref1 = dbg.get_module_from_import("win32project1.exe")

    for i in ref1:
        print(i.get("name"))

    dbg.close()

get_module_from_export() 函数: 该函数用于获取当前加载程序中的导出表信息。

  • 参数1:传入模块名
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_module_from_export("msvcr120d.dll")

    for i in ref:
        print(i.get("name"), hex(i.get("va")))

    dbg.close()

get_section() 函数: 该函数用于输出主程序中的节表信息。

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
   dbg = MyDebug(address="127.0.0.1",port=6666)
   connect_flag = dbg.connect()

   ref = dbg.get_section()
   print(ref)

   dbg.close()

get_base_from_address() 函数: 根据传入的内存地址得到该模块首地址。

  • 参数1:传入内存地址(十进制)
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    eip = dbg.get_register("eip")

    ref = dbg.get_base_from_address(eip)
    print("模块首地址: {}".format(hex(ref)))

get_base_from_name() 函数: 根据传入的模块名得到该模块所在内存首地址。

  • 参数1:传入模块名
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    eip = dbg.get_register("eip")

    ref_base = dbg.get_base_from_name("win32project.exe")
    print("模块首地址: {}".format(hex(ref_base)))

    dbg.close()

get_oep_from_name() 函数: 根据传入的模块名,获取该模块实际装载OEP位置。

  • 参数1:传入模块名
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    oep = dbg.get_oep_from_name("win32project.exe")
    print(hex(oep))

    dbg.close()

get_oep_from_address() 函数: 根据传入内存地址,得到该地址模块的OEP位置。

  • 参数1:传入内存地址
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    eip = dbg.get_register("eip")

    oep = dbg.get_oep_from_address(eip)
    print(hex(oep))

    dbg.close()

内存类

read_memory_() 系列函数: 读内存系列函数,包括 ReadByte,ReadWord,ReadDword 三种格式,在64位下才支持Qword

  • 参数1:需要读取的内存地址(十进制)

目前支持:

  • read_memory_byte() 读字节
  • read_memory_word() 读word
  • read_memory_dword() 读dword
  • read_memory_qword() 读qword (仅支持64位)
  • read_memory_ptr() 读指针
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()


    eip = dbg.get_register("eip")

    ref = dbg.read_memory_byte(eip)
    print(hex(ref))

    ref2 = dbg.read_memory_word(eip)
    print(hex(ref2))

    ref3 = dbg.read_memory_dword(eip)
    print(hex(ref3))

    ref4 = dbg.read_memory_ptr(eip)
    print(hex(ref4))

    dbg.close()

write_memory_() 系列函数: 写内存系列函数,WriteByte,WriteWord,WriteDWORD,WriteQword

  • 参数1:需要写入的内存
  • 参数2:需要写入的byte字节

目前支持:

  • write_memory_byte() 写字节
  • write_memory_word() 写word
  • write_memory_dword() 写dword
  • write_memory_qword() 写qword (仅支持64位)
  • write_memory_ptr() 写指针
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    addr = dbg.create_alloc(1024)
    print(hex(addr))

    ref = dbg.write_memory_byte(addr,10)

    print(ref)

    dbg.close()

scan_memory_one() 函数: 实现了内存扫描,当扫描到第一个符合条件的特征时,自动输出。

  • 参数1:特征码字段

这个函数需要注意,如果我们的x64dbg工具停在系统领空,则会默认搜索系统领空下的特征,如果像搜索程序里面的,需要先将EIP切过去在操作。

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    ref = dbg.scan_memory_one("ff 25")
    print(ref)
    dbg.close()

scan_memory_all() 函数: 实现了扫描所有符合条件的特征字段,找到后返回一个列表。

  • 参数1:特征码字段
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.scan_memory_all("ff 25")

    for index in ref:
        print(hex(index))

    dbg.close()

get_local_protect() 函数: 获取内存属性传值,该函数进行更新,取消了只能得到EIP所指的位置的内存属性,用户可随意检测。

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    print(eip)

    ref = dbg.get_local_protect(eip)
    print(ref)

set_local_protect() 函数: 新增设置内存属性函数,传入eip内存地址,设置属性32,以及设置内存长度1024即可。

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    
    eip = dbg.get_register("eip")
    print(eip)

    b = dbg.set_local_protect(eip,32,1024)
    print("设置属性状态: {}".format(b))

    dbg.close()

get_local_page_size() 函数: 用于获取当前EIP所指领空下,内存pagesize分页大小。

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    size = dbg.get_local_page_size()
    print("pagesize = {}".format(size))

    dbg.close()

get_memory_section() 函数: 该函数主要用于获取内存映像中,当前调试程序的内存节表数据。

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_memory_section()
    print(ref)
    dbg.close()

堆栈类

create_alloc() 函数: 函数CreateRemoteAlloc()可在远程开辟一段堆空间,成功返回内存首地址。

  • 参数1:开辟的堆长度(十进制)
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.create_alloc(1024)
    print("开辟地址: ", hex(ref))

    dbg.close()

delete_alloc() 函数: 函数delete_alloc()用于注销一个远程堆空间。

  • 参数1:传入需要删除的堆空间内存地址。
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.create_alloc(1024)
    print("开辟地址: ", hex(ref))

    flag = dbg.delete_alloc(ref)
    print("删除状态: ",flag)

    dbg.close()

push_stack() 函数: 将一个十进制数压入堆栈中,默认在堆栈栈顶。

  • 参数1:十进制数据
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.push_stack(10)

    print(ref)

    dbg.close()

pop_stack() 函数: pop函数用于从堆栈中推出一个元素,默认从栈顶弹出。

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    tt = dbg.pop_stack()
    print(tt)

    dbg.close()

peek_stack() 函数: peek则用于检查堆栈内的参数,可设置偏移值,不设置则默认检查第一个也就是栈顶。

  • 参数1:十进制偏移
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    # 无参数检查
    check = dbg.peek_stack()
    print(check)

    # 携带参数检查
    check_1 = dbg.peek_stack(2)
    print(check_1)

    dbg.close()

进程线程类

get_thread_list() 函数: 该函数可输出当前进程所有在运行的线程信息。

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_thread_list()
    print(ref[0])
    print(ref[1])

    dbg.close()

get_process_handle() 函数: 用于获取当前进程句柄信息。

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_process_handle()
    print(ref)

    dbg.close()

get_process_id() 函数: 用于获取当前加载程序的PID

  • 无参数传递
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_process_id()
    print(ref)

    dbg.close()

get_teb_address() / get_peb_address() 系列函数: 用于获取当前进程环境块,和线程环境快。

  • get_teb_address() 传入参数是线程ID
  • get_peb_address() 传入参数是进程ID
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.get_teb_address(6128)
    print(ref)

    ref = dbg.get_peb_address(9012)
    print(ref)

    dbg.close()

反汇编类

get_disasm_code() 函数: 该函数主要用于对特定内存地址进行反汇编,传入两个参数。

  • 参数1:需要反汇编的地址(十进制)
  • 参数2:需要向下反汇编的长度
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    # 得到EIP位置
    eip = dbg.get_register("eip")

    # 反汇编前100行
    disasm_dict = dbg.get_disasm_code(eip,100)

    for ds in disasm_dict:
        print("地址: {} 反汇编: {}".format(hex(ds.get("addr")),ds.get("opcode")))

    dbg.close()

get_disasm_one_code() 函数: 在用户指定的位置读入一条汇编指令,用户可根据需要对其进行判断。

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    print("EIP = {}".format(eip))

    disasm = dbg.get_disasm_one_code(eip)
    print("反汇编一条: {}".format(disasm))

    dbg.close()

get_disasm_operand_code() 函数: 用于获取汇编指令中的操作数,例如jmp 0x0401000其操作数就是0x0401000

  • 参数1:传入内存地址(十进制)
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    print("EIP = {}".format(eip))

    opcode = dbg.get_disasm_operand_code(eip)
    print("操作数: {}".format(hex(opcode)))

    dbg.close()

get_disasm_operand_size() 函数: 用于得当前内存地址下汇编代码的机器码长度。

  • 参数1:传入内存地址(十进制)
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    print("EIP = {}".format(eip))

    opcode = dbg.get_disasm_operand_size(eip)

    print("机器码长度: {}".format(hex(opcode)))

    dbg.close()

assemble_write_memory() 函数: 实现了用户传入一段正确的汇编指令,程序自动将该指令转为机器码,并写入到指定位置。

  • 参数1:写出内存地址(十进制)
  • 参数2:写出汇编指令
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    print(eip)

    ref = dbg.assemble_write_memory(eip,"mov eax,1")
    print("是否写出: {}".format(ref))

    dbg.close()

assemble_code_size() 函数: 该函数实现了用户传入一个汇编指令,自动计算出该指令占多少个字节。

  • 参数1:汇编指令字符串
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.assemble_code_size("sub esp, 0x324")
    print(ref)

    dbg.close()

其他通用类

set_comment_notes() 函数: 给指定位置代码增加一段注释,如下演示在eip位置增加注释。

  • 参数1:注释内存地址
  • 参数2:注释内容
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    eip = dbg.get_register("eip")
    ref = dbg.set_comment_notes(eip,"hello lyshark")
    print(ref)

    dbg.close()

run_command_exec() 函数: 执行内置命令,例如bp,dump等。

  • 参数1:命令语句
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    ref = dbg.run_command_exec("bp MessageBoxA")
    print(ref)

    dbg.close()

set_loger_output() 函数: 日志的输出尤为重要,该模块提供了自定义日志输出功能,可将指定日志输出到x64dbg日志位置。

  • 参数1:日志内容
from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()

    for i in range(0,100):
        ref = dbg.set_loger_output("hello lyshark -> {} \n".format(i))
        print(ref)

    dbg.close()

通用案例

PEFile载入内存格式: 案例演示了,如何将一个可执行文件中的内存数据通过PEfile模块打开。

from LyScript32 import MyDebug
import pefile

if __name__ == "__main__":
    # 初始化
    dbg = MyDebug()
    dbg.connect()

    # 得到text节基地址
    local_base = dbg.get_local_base()

    # 根据text节得到程序首地址
    base = dbg.get_base_from_address(local_base)

    byte_array = bytearray()
    for index in range(0,4096):
        read_byte = dbg.read_memory_byte(base + index)
        byte_array.append(read_byte)

    oPE = pefile.PE(data = byte_array)
    timedate = oPE.OPTIONAL_HEADER.dump_dict()
    print(timedate)

全模块特征匹配: 针对所有模块中的特征码模糊匹配,找到会返回内存地址。

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    dbg.connect()

    for entry in dbg.get_all_module():
        eip = entry.get("entry")

        if eip != 0:
            dbg.set_register("eip",eip)

            search = dbg.scan_memory_one("ff 25 ??")
            print(hex(search))

    dbg.close()

运用Python搜索汇编特征: 使用python实现方法,通过特定方法扫描内存范围,如果出现我们所需要的指令集序列,则输出该指令的具体内存地址。

from LyScript32 import MyDebug

# 检索指定序列中是否存在一段特定的指令集
def SearchOpCode(OpCodeList,SearchCode,ReadByte):
            pass

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    # 得到EIP位置
    eip = dbg.get_register("eip")

    # 反汇编前1000行
    disasm_dict = dbg.get_disasm_code(eip,1000)

    # 搜索一个指令序列,用于快速查找构建漏洞利用代码
    SearchCode = [
        ["push 0xC0000409", "call 0x003F1B38", "pop ecx"],
        ["mov ebp, esp", "sub esp, 0x324"]
    ]

    # 检索内存指令集
    for item in range(0,len(SearchCode)):
        Search = SearchCode[item]
        # disasm_dict = 返回汇编指令 Search = 寻找指令集 1000 = 向下检索长度
        ret = SearchOpCode(disasm_dict,Search,1000)
        if ret != None:
            print("指令集: {} --> 首次出现地址: {}".format(SearchCode[item],hex(ret)))

    dbg.close()

得到汇编指令机器码: 该功能主要实现,得到用户传入汇编指令所对应的机器码,这段代码你可以这样来实现。

from LyScript32 import MyDebug

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    addr = dbg.create_alloc(1024)

    print("堆空间: {}".format(hex(addr)))

    asm_size = dbg.assemble_code_size("mov eax,1")
    print("汇编代码占用字节: {}".format(asm_size))

    write = dbg.assemble_write_memory(addr,"mov eax,1")

    byte_code = bytearray()

    for index in range(0,asm_size):
        read = dbg.read_memory_byte(addr + index)
        print("{:02x} ".format(read),end="")

    dbg.delete_alloc(addr)

封装上方代码,你就可以实现一个汇编指令获取工具了,如下get_opcode_from_assemble()函数。

from LyScript32 import MyDebug

# 传入汇编代码,得到对应机器码
def get_opcode_from_assemble(dbg_ptr,asm):
              pass

if __name__ == "__main__":
    dbg = MyDebug()
    connect_flag = dbg.connect()
    print("连接状态: {}".format(connect_flag))

    # 获取汇编代码
    byte_array = get_opcode_from_assemble(dbg,"xor eax,eax")
    for index in byte_array:
        print(hex(index),end="")
    print()

    # 汇编一个序列
    asm_list = ["xor eax,eax", "xor ebx,ebx", "mov eax,1"]
    for index in asm_list:
        byte_array = get_opcode_from_assemble(dbg, index)
        for index in byte_array:
            print(hex(index),end="")
        print()

    dbg.close()

如何劫持EIP: 这里我们演示一个案例,你可以自己实现一个write_opcode_from_assemble()函数批量将列表中的指令集写出到内存,演示案例。

from LyScript32 import MyDebug

# 传入汇编指令列表,直接将机器码写入对端内存
def write_opcode_from_assemble(dbg_ptr,asm_list):
              pass

if __name__ == "__main__":
    dbg = MyDebug()
    dbg.connect()

    # 写出指令集到内存
    asm_list = ['mov eax,1','mov ebx,2','add eax,ebx']
    write_addr = write_opcode_from_assemble(dbg,asm_list)
    print("写出地址: {}".format(hex(write_addr)))

    # 设置执行属性
    dbg.set_local_protect(write_addr,32,1024)

    # 将EIP设置到指令集位置
    dbg.set_register("eip",write_addr)

    dbg.close()

如何执行函数呢?很简单,看以下代码是如何实现的,相信你能看懂,运行后会看到一个错误弹窗,说明程序执行流已经被转向了。

from LyScript32 import MyDebug

# 传入汇编指令列表,直接将机器码写入对端内存
def write_opcode_from_assemble(dbg_ptr,asm_list):
              pass

if __name__ == "__main__":
    dbg = MyDebug()
    dbg.connect()

    # 得到messagebox内存地址
    msg_ptr = dbg.get_module_from_function("user32.dll","MessageBoxA")
    call = "call {}".format(str(hex(msg_ptr)))
    print("函数地址: {}".format(call))

    # 写出指令集到内存
    asm_list = ['push 0','push 0','push 0','push 0',call]
    write_addr = write_opcode_from_assemble(dbg,asm_list)
    print("写出地址: {}".format(hex(write_addr)))

    # 设置执行属性
    dbg.set_local_protect(write_addr,32,1024)

    # 将EIP设置到指令集位置
    dbg.set_register("eip",write_addr)

    # 执行代码
    dbg.set_debug("Run")

    dbg.close()

内存字节变更后回写: 封装字节函数write_opcode_list()传入内存地址,对该地址中的字节更改后再回写到原来的位置。

  • 加密算法在内存中会通过S盒展开解密,有时需要特殊需求,捕捉解密后的S-box写入内存,或对矩阵进行特殊处理后替换,这样写即可实现。
from LyScript32 import MyDebug

# 对每一个字节如何处理
def write_func(x):
    x = x + 10
    return x

# 对指定内存地址机器码进行相应处理
def write_opcode_list(dbg_ptr, address, count, function_ptr):
    for index in range(0, count):
        read = dbg_ptr.read_memory_byte(address + index)

        ref = function_ptr(read)
        print("处理后结果: {}".format(ref))

        dbg.write_memory_byte(address + index, ref)
    return True

if __name__ == "__main__":
    dbg = MyDebug()
    dbg.connect()

    # 得到EIP
    eip = dbg.get_register("eip")

    # 对指定内存中的数据+10后写回去
    write_opcode_list(dbg,eip,100,write_func)

    dbg.close()

指令集探针快速检索: 快速检索当前程序中所有模块中是否存在特定的指令集片段,存在则返回内存地址。

from LyScript32 import MyDebug

# 将bytearray转为字符串
def get_string(byte_array):
    ref_string = str()
    for index in byte_array:
        ref_string = ref_string + "".join(str(index))
    return ref_string

# 传入汇编代码,得到对应机器码
def get_opcode_from_assemble(dbg_ptr,asm):
  pass

if __name__ == "__main__":
    dbg = MyDebug()
    dbg.connect()

    # 需要搜索的指令集片段
    search_asm = ['pop ecx','mov edi,edi', 'push eax', 'jmp esp']
    opcode = []

    # 将汇编指令转为机器码,放入opcode
    for index in range(len(search_asm)):
        byt = bytearray()
        byt = get_opcode_from_assemble(dbg, search_asm[index])
        opcode.append(get_string(byt))

    # 循环搜索指令集内存地址
    for index,entry in zip(range(0,len(opcode)), dbg.get_all_module()):
        eip = entry.get("entry")
        base_name = entry.get("name")
        if eip != 0:
            dbg.set_register("eip",eip)
            search_address = dbg.scan_memory_all(opcode[index])

            if search_address != False:
                print("指令: {} --> 模块: {} --> 个数: {}".format(search_asm[index],base_name,len(search_address)))

                for search_index in search_address:
                    print("[*] {}".format(hex(search_index)))
            else:
                print("a")

        time.sleep(0.3)
    dbg.close()

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