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熟练掌握Win32 API函数的参数传递,是软件逆向的基础,本章节内容将使用MASM汇编器,逐个编译这些源程序,你可以通过使用一些调试工具,这里推荐OllyDBG来附加编译后的可执行文件,进行逐个分析,观察二进制程序逆向后的一些变化,总结吸收经验,为以后的二进制逆向,漏洞挖掘打基础.
通用系统函数
注册热键: 注册全局热键并能激活.
.data
hMsgBox db "你按下了 CTRL + ALT + A",0h
uMsg MSG <?>
.code
main PROC
; 41h = A | 65h=uMsg.wParam
invoke RegisterHotKey,NULL,065h,MOD_CONTROL or MOD_ALT,041h
.while(TRUE)
invoke GetMessage,addr uMsg,NULL,0,0
.if(uMsg.message == WM_HOTKEY) ; 按下按键提示
invoke MessageBox,NULL,addr hMsgBox,addr uMsg.wParam,MB_OK
.elseif(uMsg.message == WM_DESTROY) ; 程序结束后关闭热键
invoke UnregisterHotKey,NULL,065h
invoke PostQuitMessage,NULL
.endif
.endw
invoke ExitProcess,0
main ENDP
END main最小化指定窗口:
.data
FindName db "qq",0h
handle dd ?
.code
main PROC
invoke FindWindow,NULL,addr FindName
mov handle,eax
.if(handle != 0) ; 找到则隐藏窗口
invoke ShowWindow,handle,SW_HIDE
.else ; 没有找到则显示
invoke ShowWindow,handle,SW_SHOW
.endif
invoke ExitProcess,0
main ENDP
END main显示当前目录等:
.data
stStartUp STARTUPINFO <?>
.code
main PROC
invoke GetStartupInfo,addr stStartUp
mov eax,stStartUp.lpDesktop
mov eax,stStartUp.lpTitle ; 显示当前软件目录
invoke ExitProcess,0
main ENDP
END main取系统版本等:
.data
version OSVERSIONINFO <?>
lpsystem SYSTEM_INFO <?>
.code
main PROC
invoke GetSystemInfo,addr lpsystem
mov ax,lpsystem.wProcessorArchitecture
invoke GetVersionEx,addr version
mov eax,version.dwBuildNumber
invoke ExitProcess,0
main ENDP
END main取命令行参数:
.data
cmdline dword ?
.code
main PROC
invoke GetCommandLine ; 获取命令行参数
mov cmdline,eax
invoke ExitProcess,0
main ENDP
END main获取环境变量:
.data
szBuffer DB 200 dup(?) ; 保存到缓冲区
szVarName DB "PATH",0h ; 获取set PATH
lpVar DD ?
.code
main PROC
invoke GetEnvironmentVariable,addr szVarName,addr szBuffer,sizeof szBuffer
xor eax,eax
invoke GetEnvironmentStrings
mov lpVar,eax
invoke ExitProcess,0
main ENDP
END main设置环境变量:
.data
lpVarName DB "PATH",0h
lpValue DB "E:\RadASM\masm32\bin",0h
.code
main PROC
invoke SetEnvironmentVariable,addr lpVarName,addr lpValue
invoke ExitProcess,0
main ENDP
END main运行系统软件: 下载并运行一个软件.
include urlmon.inc
includelib urlmon.lib
.data
szURL DB "https://www.mkdirs/lyshark.exe",0h
szFileName DB "C:\\lyshark.exe",0h
WinRun DB "C:/lyshark.exe",0h
.code
main proc
invoke URLDownloadToFile,NULL,addr szURL,addr szFileName,0,NULL
invoke WinExec,offset WinRun,SW_SHOW
ret
main endp
end main获取本地时间:
.data
systime SYSTEMTIME <>
.code
main PROC
invoke GetLocalTime,addr systime ; 获取当前时间
mov ax,systime.wYear
mov bx,systime.wMonth
mov cx,systime.wDay
invoke SetLocalTime,addr systime ; 设置当前时间
main ENDP
END main获取系统时间:
.data
systime SYSTEMTIME <>
.code
main PROC
invoke GetSystemTime,addr systime
mov ax,systime.wYear
mov bx,systime.wMonth
mov cx,systime.wDay
invoke SetSystemTime,addr systime
main ENDP
END main获取时间差: eax保存的就是执行代码后的时间差,单位毫秒
.data
dwTock DWORD ?
.code
main PROC
invoke GetTickCount
mov dwTock,eax
invoke GetTickCount
sub eax,dwTock
main ENDP
END main
内存分配函数
标准内存管理
获取内存状态: GlobalMemourStatus
.data
Mem MEMORYSTATUS <>
.code
main PROC
invoke GlobalMemoryStatus,offset Mem
mov eax,Mem.dwLength ; 获取结构长度
mov eax,Mem.dwMemoryLoad ; 已用内存百分比
mov eax,Mem.dwTotalPhys ; 物理内存总数
mov eax,Mem.dwAvailPhys ; 可用物理内存
mov eax,Mem.dwTotalPageFile ; 交换文件的总大小
mov eax,Mem.dwAvailPageFile ; 交换文件可用大小
mov eax,Mem.dwTotalVirtual ; 用户可用的地址空间
mov eax,Mem.dwAvailVirtual ; 用户空闲地址空间
invoke ExitProcess,0
main ENDP
END main申请内存:
.data
lpMemory DWORD ?
.code
main PROC
;GMEM_FIXED=申请内存;GMEM_ZEROINIT申请并初始化为0
invoke GlobalAlloc,GMEM_ZEROINIT,1024
.if(eax != NULL)
mov lpMemory,eax ; lpMemory 为分配成功后的内存指针
.endif
invoke GlobalFree,lpMemory ; 释放内存空间
invoke ExitProcess,0
main ENDP
END main扩大内存空间:
.data
lpMemory DWORD ?
reMemory DWORD ?
.code
main PROC
invoke GlobalAlloc,GMEM_ZEROINIT,100
mov lpMemory,eax
invoke GlobalReAlloc,lpMemory,1024,GMEM_ZEROINIT or GMEM_MOVEABLE
.if(eax != NULL)
mov reMemory,eax
.endif
invoke GlobalFree,lpMemory
invoke GlobalFree,reMemory
invoke ExitProcess,0
main ENDP
END main锁定/解锁内存: 程序需要使用这块内存可以将其锁定,使用完后可以解除锁定.
.data
lpMemory DWORD ?
Locks DWORD ?
.code
main PROC
invoke GlobalAlloc,GMEM_ZEROINIT,100
mov lpMemory,eax
invoke GlobalLock,lpMemory ; 锁定内存空间
.if(eax != NULL)
mov Locks,eax ; 锁定成功后,返回原内存地址
.endif
invoke GlobalUnlock,lpMemory ; 解锁内存空间,成功返回非0
invoke ExitProcess,0
main ENDP
END main可移动/可丢弃内存: 可移动内存允许在不使用时改变其内存地址,可丢弃当内存不足时可将其丢弃。
.data
lp_Move_Memory DWORD ?
lp_Disb_Memory DWORD ?
.code
main PROC
invoke GlobalAlloc,GMEM_MOVEABLE or GMEM_ZEROINIT,1024 ; 分配可移动的内存
.if(eax != NULL)
mov lp_Move_Memory,eax ; 分配成功则保存其内存地址
.endif
invoke GlobalAlloc,GMEM_DISCARDABLE or GMEM_ZEROINIT,1024 ; 分配可丢弃的内存
.if(eax != NULL)
mov lp_Disb_Memory,eax
.endif
invoke ExitProcess,0
main ENDP
END main复制内存地址: 将源地址复制到目标地址中,总共复制40个字节.
.data
Source DWORD 1,2,3,4,5
DWORD 6,7,8,9,0
Dest DWORD 0,0,0,0,0
DWORD 0,0,0,0,0
.code
main PROC
lea eax,Source ; 源地址
lea ebx,Dest ; 目标地址
invoke RtlMoveMemory,addr Dest,addr Source,40 ;将源地址复制到目标地址,复制40个字节
invoke ExitProcess,0
main ENDP
END main填充内存: 将Memory中的字节数据，全部填充替换为A，或填充为0
.data
Memory DB 1,2,3,4,5,6,7,8,9,0
DB 1,2,3,4,5,6,7,8,9,0
DB 1,2,3,4,5,6,7,8,9,0
Fill DB "A",0
.code
main PROC
lea eax,Memory
; 填充Memory内存，向后填充1024字节，填充为A
invoke RtlFillMemory,addr Memory,1024,addr Fill
;填充Memory内存，向后填充1024字节，全部初始化为0
invoke RtlZeroMemory,addr Memory,1024
invoke ExitProcess,0
main ENDP
END main堆管理函数
创建私有堆: 创建一个1024字节的私有堆,并返回内存地址.
.data
HeapMain DWORD ?
.code
main PROC
invoke HeapCreate,HEAP_NO_SERIALIZE,1024,0 ; 保留1024字节物理内存
.if(eax != NULL)
mov HeapMain,eax ; 成功分配则返回内存地址
.endif
invoke HeapDestroy,HeapMain ; 释放堆空间
invoke ExitProcess,0
main ENDP
END main分配内存块: 在创建的堆中分配内存块.
.data
lpHeap DWORD ?
lpMem DWORD ?
.code
main PROC
invoke HeapCreate,HEAP_NO_SERIALIZE,1024,0 ; 保留1024字节物理内存
mov lpHeap,eax ; 保存分配的地址
invoke HeapAlloc, lpHeap,HEAP_ZERO_MEMORY,1024 ; 分配1024字节空间
.if(eax != NULL)
mov lpMem,eax ; 分配成功,保存内存地址
.endif
invoke HeapDestroy,lpHeap ; 释放堆空间
invoke ExitProcess,0
main ENDP
END main在堆中分配内存:
.data
lpHeap DWORD ?
lpMemory DWORD ?
.code
main PROC
invoke HeapCreate,HEAP_NO_SERIALIZE,1024,0 ; 创建堆句柄,并保留1024字节
mov lpHeap,eax ; 保存分配句柄地址
invoke HeapAlloc,lpHeap,HEAP_ZERO_MEMORY,1024 ; 分配1024字节的地址
mov lpMemory,eax ; 分配并返回内存地址
invoke HeapDestroy,lpHeap ; 释放堆空间
invoke ExitProcess,0
main ENDP
END main增加堆内存空间: 在原本来的内存地址基础上,增加内存空间
.data
lpHeap DWORD ?
lpMemory DWORD ?
ReMemory DWORD ?
.code
main PROC
invoke HeapCreate,HEAP_NO_SERIALIZE,4096,0 ; 创建堆句柄,并保留4096字节
mov lpHeap,eax ; 保存分配句柄地址
invoke HeapAlloc,lpHeap,HEAP_ZERO_MEMORY,1024 ; 分配1024字节的地址
mov lpMemory,eax ; 分配并返回内存地址
; 重新分配内存空间,在原内存1024上调整到2048
invoke HeapReAlloc,lpHeap,HEAP_ZERO_MEMORY,lpMemory,2048
mov ReMemory,eax ; 保存返回内存地址
invoke HeapDestroy,lpHeap ; 释放堆空间
invoke ExitProcess,0
main ENDP
END main计算堆空间大小:
.data
lpHeap DWORD ?
lpMemory DWORD ?
Mem_Size DWORD ?
.code
main PROC
invoke HeapCreate,HEAP_NO_SERIALIZE,4096,0 ; 创建堆句柄,并保留4096字节
mov lpHeap,eax ; 保存分配句柄地址
invoke HeapAlloc,lpHeap,HEAP_ZERO_MEMORY,1024 ; 分配1024字节的地址
mov lpMemory,eax ; 分配并返回内存地址
invoke HeapSize,lpHeap,HEAP_NO_SERIALIZE,lpMemory ; 计算堆空间的大小
mov Mem_Size,eax ; 取地址大小,此处为1024
invoke HeapDestroy,lpHeap ; 释放堆空间
invoke ExitProcess,0
main ENDP
END main锁定/解锁堆:
.data
lpHeap DWORD ?
lpMemory DWORD ?
.code
main PROC
invoke HeapCreate,HEAP_NO_SERIALIZE,4096,0 ; 创建堆句柄,并保留4096字节
mov lpHeap,eax ; 保存分配句柄地址
invoke HeapAlloc,lpHeap,HEAP_ZERO_MEMORY,1024 ; 分配1024字节的地址
mov lpMemory,eax ; 分配并返回内存地址
invoke HeapLock,lpHeap ; 锁定内存堆
invoke HeapUnlock,lpHeap ; 解锁内存堆
invoke HeapDestroy,lpHeap ; 释放堆空间
invoke ExitProcess,0
main ENDP
END main虚拟内存函数
保留地址空间: 保留的空间不可以直接使用.
.data
lpAddr DWORD ?
.code
main PROC
invoke VirtualAlloc,NULL,1024,MEM_RESERVE,PAGE_NOACCESS ; 保留内存地址
mov lpAddr,eax
invoke VirtualFree,lpAddr,1024,MEM_RELEASE ; 释放地址空间
invoke ExitProcess,0
main ENDP
END main分配地址空间:
.data
lpAddr DWORD ?
.code
main PROC
invoke VirtualAlloc,NULL,1024,MEM_COMMIT,PAGE_READWRITE ; 分配内存地址
.if(eax != NULL)
mov lpAddr,eax
.endif
invoke VirtualFree,lpAddr,1024,MEM_RELEASE ; 释放内存地址
invoke ExitProcess,0
main ENDP
END main保护/锁定内存:
.data
lpAddr DWORD ?
.code
main PROC
invoke VirtualAlloc,NULL,1024,MEM_COMMIT,PAGE_READWRITE ; 保留内存地址
.if(eax != NULL)
mov lpAddr,eax
.endif
invoke VirtualProtect,lpAddr,1024,PAGE_NOACCESS,NULL ; 设置内存为只读
invoke VirtualLock,lpAddr,1024 ; 锁定内存地址
invoke VirtualUnlock,lpAddr,1024 ; 解除内存锁定
invoke VirtualFree,lpAddr,1024,MEM_RELEASE ; 释放地址空间
invoke ExitProcess,0
main ENDP
END main内存状态测试:
.data
lpMemory DWORD 1024
lpString BYTE "hello lyshark",0
lpStatus DWORD ?
.code
main PROC
mov lpMemory,1024
lea eax,lpMemory
invoke IsBadCodePtr,lpMemory ; 内存的第一个字节是否可读
mov lpStatus,eax ; 可读返回0否则返回非0
invoke IsBadReadPtr,lpMemory,1024 ; 测试前1024字节是否可读
mov lpStatus,eax ; 可读返回0否则返回非0
invoke IsBadWritePtr,lpMemory,1024 ; 测试前1024字节是否可写
mov lpStatus,eax ; 可写返回0否则返回非0
invoke IsBadStringPtr,addr lpString,sizeof lpString ; 测试字符串是否可读
mov lpStatus,eax ; 可读返回0否则返回非0
invoke ExitProcess,0
main ENDP
END main
文件与磁盘函数
文件相关函数
打开/关闭文件: 打开文件成功返回文件句柄,失败则返回error
.data
szFileName db "e:\lyshark.log",0h ; 打开的文件名称
hFile dd ? ; 打开成功后返回的句柄
.code
main PROC
invoke CreateFile,addr szFileName,GENERIC_READ,FILE_SHARE_READ,0, \
OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
.if(eax != INVALID_HANDLE_VALUE)
mov hFile,eax
.endif
invoke ExitProcess,0
main ENDP
END main创建文件: CREATE_ALWAYS=文件存在则清空内容,CREATE_NEW=文件存在则返回失败
.data
szNewFile db "C:\lyshark.log",0h
hFile dd ?
.code
main PROC
invoke CreateFile,addr szNewFile,GENERIC_WRITE,FILE_SHARE_READ,0, \
CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0
.if(eax != INVALID_HANDLE_VALUE)
mov hFile,eax
.endif
invoke CloseHandle,hFile
invoke ExitProcess,0
main ENDP
END main移动文件指针:
.data
szFileName DB "c:\lyshark.log",0h
hFileHandl DD ?
.code
main PROC
invoke CreateFile,addr szFileName,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
.if(eax != INVALID_HANDLE_VALUE)
mov hFileHandl,eax
.endif
invoke SetFilePointer,hFileHandl,0,NULL,FILE_CURRENT ; eax=获取的文件指针位置
xor eax,eax
invoke SetFilePointer,hFileHandl,10,NULL,FILE_BEGIN ; 将文件指针向后移动10个字节
xor eax,eax
invoke SetFilePointer,hFileHandl,0,NULL,FILE_CURRENT ; 再次获取指针位置,eax=10
invoke ExitProcess,0
main ENDP
END main设置指针到末尾:
.data
szFileName DB "e:\lyshark.log",0h
hFileHandl DD ?
.code
main PROC
invoke CreateFile,addr szFileName,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
.if(eax != INVALID_HANDLE_VALUE)
mov hFileHandl,eax
.endif
invoke SetEndOfFile,hFileHandl ; 将文件位置设置到末尾
invoke SetFilePointer,hFileHandl,0,NULL,FILE_CURRENT ; 获取指针位置
invoke ExitProcess,0
main ENDP
END main读取文件内容:
.data
szFileName DB "C:\lyshark.log",0h
hFileHandle DD ?
szReadBuff DB ? ; 每次读取一个字节,放入该变量中
ByteRead DB ?
.code
main PROC
invoke CreateFile,addr szFileName,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
.if(eax != INVALID_HANDLE_VALUE)
mov hFileHandle,eax
.endif
invoke SetFilePointer,hFileHandle,1,NULL,FILE_BEGIN ; 取第一个字符
invoke ReadFile,hFileHandle,addr szReadBuff,sizeof szReadBuff,addr ByteRead,0
mov al,[szReadBuff] ; 将取出来的字符放入al寄存器中
invoke ExitProcess,0
main ENDP
END main写入文件内容:
.data
szFileName DB "C:\lyshark.log",0h
hFileHandle DD ? ; 获取文件句柄
lpBuffer DB "hello lyshark",0h ; 要写入的字符串
reWrite DD ? ; 返回写入成功字节数
.code
main PROC
invoke CreateFile,addr szFileName,GENERIC_WRITE,FILE_SHARE_WRITE,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
.if(eax != INVALID_HANDLE_VALUE)
mov hFileHandle,eax
.endif
; 将lpBuffer中的数据写入到文件,写入大小为sizeof获取的大小.
invoke WriteFile,hFileHandle,addr lpBuffer,sizeof lpBuffer,addr reWrite,NULL
invoke FlushFileBuffers,hFileHandle ; 强制刷新写入
invoke ExitProcess,0
main ENDP
END main获取文件长度:
.data
szFileName DB "E:\lyshark.log",0h
hFileHandle DD ?
FilesSize DD ?
.code
main PROC
invoke CreateFile,addr szFileName,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
mov hFileHandle,eax
invoke GetFileSize,hFileHandle,NULL ; 取出文件的长度
mov FilesSize,eax ; 放入FilesSize里面
invoke ExitProcess,0
main ENDP
END main获取文件日期:
.data
szFileName DB "E:\lyshark.log",0h
hFileHandle DD ?
create FILETIME <> ; 存储创建文件的日期
systime SYSTEMTIME <> ; 存储转换后的文件日期
.code
main PROC
invoke CreateFile,addr szFileName,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
mov hFileHandle,eax ; 取出文件句柄
invoke GetFileTime,hFileHandle,addr create,NULL,NULL ; 只取出创建日期，其他的用NULL填充
invoke FileTimeToSystemTime,addr create,addr systime ; 转换成常用格式
mov ax,systime.wYear ; 取出年份
mov bx,systime.wMonth ; 取出月份
mov cx,systime.wDay ; 取出天数
invoke ExitProcess,0
main ENDP
END main修改文件日期:
.data
szFileName DB "E:\lyshark.log",0h
hFileHandle DD ?
create FILETIME <> ; 存储创建文件的日期
systime SYSTEMTIME <> ; 存储转换后的文件日期
.code
main PROC
invoke CreateFile,addr szFileName,GENERIC_READ,FILE_SHARE_READ,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0
mov hFileHandle,eax ; 取出文件句柄
mov systime.wYear,19 ; 先填写结构
mov systime.wMonth,19
invoke SystemTimeToFileTime,addr systime,addr create ; 转换成filetime
invoke SetFileTime,hFileHandle,addr create,NULL,NULL ; 回写
invoke ExitProcess,0
main ENDP
END main拷贝/移动/删除/文件:
.data
lpSourceFile DB "C:\lyshark.log",0h
lpDestFile DB "E:\wang.log",0h
.code
main PROC
invoke CopyFile,addr lpSourceFile,addr lpDestFile,TRUE ; 拷贝文件
invoke MoveFile,addr lpDestFile,addr lpSourceFile ; 移动文件
invoke DeleteFile,addr lpSourceFile
invoke DeleteFile,addr lpDestFile ; 删除文件
invoke ExitProcess,0
main ENDP
END main磁盘相关函数
显示所有驱动器:
.data
lpLength BYTE ?
lpDrives DWORD 0 dup(1024)
.code
main PROC
invoke GetLogicalDrives ; 获取卷标
invoke GetLogicalDriveStrings,addr lpLength,addr lpDrives ; 同上
lea esi,[lpDrives] ; 显示C盘
lea esi,[lpDrives+4] ; 显示D盘
invoke ExitProcess,0
main ENDP
END main获取磁盘类型:
.data
lpDrive DB "c:\",0
.code
main PROC
invoke GetDriveType,addr lpDrive
invoke ExitProcess,0
main ENDP
END main获取磁盘详细信息:(有问题的)
.data
lpRoot DB "c:\",0h
lpBuffer DB 1024 dup(?)
dwSerial DD ?
lpType DB 1024 dup(?)
.code
main PROC
invoke GetVolumeInformation,addr lpRoot, \
addr lpBuffer,1024,addr dwSerial,255, \
FILE_CASE_PRESERVED_NAMES,addr lpType,1024
lea eax,lpRoot
lea ebx,lpBuffer
lea ecx,dwSerial
lea edx,lpType
invoke ExitProcess,0
main ENDP
END main检测逻辑驱动器字节:
.data
lpRoot DB "c:\",0h
lpSect DD ?
lpByte DD ?
lpNumb DD ?
lpTota DD ?
.code
main PROC
; 总容量 = 簇总数 * 每簇扇区数 * 每扇区字节数
; 空闲字节数 = 未使用的簇 * 每扇区数 * 每扇区字节数
invoke GetDiskFreeSpace,addr lpRoot,addr lpSect,addr lpByte,addr lpNumb,addr lpTota
mov eax,lpSect ; 返回每个簇的扇区数
mov eax,lpByte ; 返回每扇区的字节数
mov eax,lpNumb ; 返回未使用的簇的数量
mov eax,lpTota ; 返回簇的总数
invoke ExitProcess,0
main ENDP
END main获取当前目录:
.data
lpRoot DB ?
.code
main PROC
invoke GetCurrentDirectory,1024,addr lpRoot ; 获取当前目录
lea eax,lpRoot
invoke GetTempPath,1024,addr lpRoot ; 获取临时目录
lea eax,lpRoot
invoke GetSystemDirectory,addr lpRoot,1024 ; 获取系统目录
lea eax,lpRoot
invoke ExitProcess,0
main ENDP
END main创建删除目录:
.data
lpRoot DB "c:\windows\",0
szDir DB "c:\lyshark\wang",0
.code
main PROC
invoke SetCurrentDirectory,addr lpRoot ; 设置默认路径
invoke CreateDirectory,addr szDir,NULL ; 创建目录
invoke RemoveDirectory,addr szDir ; 删除目录
invoke ExitProcess,0
main ENDP
END main
进程与线程函数
进程相关函数
创建进程:
.data
szBuffer DWORD ?
szFileName DWORD ?
szCmdLine DWORD ?
szBlank DWORD ?
stStartUp DWORD ?
stProcInfo DWORD ?
.code
main PROC
invoke lstrcpy,addr szBuffer,addr szFileName
.if(szCmdLine)
invoke lstrcat,addr szBuffer,addr szBlank
invoke lstrcat,addr szBuffer,addr szCmdLine
.endif
invoke GetStartupInfo,addr stStartUp
invoke CreateProcess,NULL,addr szBuffer,NULL,NULL,NULL, \
NORMAL_PRIORITY_CLASS,NULL,NULL,addr stStrartUp,addr stProcInfo
ret
main ENDP
END main取所有进程信息: 使用快照函数,一次性遍历出所有的进程列表.
.data
hSnapShot dd ?
stProcess PROCESSENTRY32 <?>
.code
main proc
invoke CreateToolhelp32Snapshot,TH32CS_SNAPPROCESS,0 ; 创建快照
mov hSnapShot,eax ; 保存句柄
mov stProcess.dwSize,sizeof stProcess ; 保存快照大小
invoke Process32First,hSnapShot,addr stProcess ; 取第一个进程数据
.while(eax) ; eax!=0则继续循环
invoke Process32Next,hSnapShot,addr stProcess ; 取下一个进程数据
.endw
invoke CloseHandle,hSnapShot ; 关闭进程句柄
ret
main endp
end main取指定进程PID: 获取xshell进程的PID号
.data
FindID DB "Xshell",0h
ThreadID DD ?
ProcessID DD ? ; 获取到的进程号
.code
main PROC
invoke FindWindow,NULL,addr FindID
.if(FindID != 0)
mov ThreadID,eax
.endif
invoke GetWindowThreadProcessId, ThreadID,offset ProcessID
mov eax,ProcessID
ret
main ENDP
END main内存示范例子: 请手动编译该例子,并命名为lyshark.exe,接下来的读内存/写内存例子将用它讲解.
.386p
.model flat,stdcall
option casemap:none
include windows.inc
include user32.inc
include kernel32.inc
includelib user32.lib
includelib kernel32.lib
.data
titles DB "box",0h
check_ok DB "破解完成.",0h
check_err DB "破解失败",0h
.code
main proc
xor eax,eax
.if eax
invoke MessageBox,NULL,addr check_ok,addr titles,MB_OK
.else
invoke MessageBox,NULL,addr check_err,addr titles,MB_OK
.endif
ret
main endp
end main读取进程数据: 读取指定的内存地址中的数据,并将其放入ReadBuf缓冲区中.
OEP equ 004198402 ; 读取的范围
.data
stStartUp STARTUPINFO <> ; 初始化
stProInfo PROCESS_INFORMATION <> ; 该进程的进程信息
ExeRun DB "C:\\lyshark.exe",0h ; 要打开的进程名称
ReadBuf DD ? ; 读取到的数据内容
.code
main proc
invoke GetStartupInfo,addr stStartUp
invoke CreateProcess,addr ExeRun,NULL,NULL,NULL,NULL,\
NORMAL_PRIORITY_CLASS,0,0,addr stStartUp,addr stProInfo
.if(eax)
; 读取当前进程,读取内存地址为OEP,每次读取8个字节,读取到放入ReadBuf
invoke ReadProcessMemory,stProInfo.hProcess,OEP,addr ReadBuf,8,NULL
lea eax,ReadBuf
.endif
ret
main endp
end main写入进程数据: 写入进程数据,将跳转替换为nop指令的机器码.
OEP equ 004198402 ; 读取的范围
.data
stStartUp STARTUPINFO <> ; 初始化
stProInfo PROCESS_INFORMATION <> ; 该进程的进程信息
ExeRun DB "C:\\lyshark.exe",0h ; 要打开的进程名称
lpPatch DB 90h,90h,90h,90h ; 要替换的汇编指令
redPatch DD ? ; 替换完后保存替换结果
.code
main proc
invoke GetStartupInfo,addr stStartUp
invoke CreateProcess,addr ExeRun,NULL,NULL,NULL,NULL,\
NORMAL_PRIORITY_CLASS,0,0,addr stStartUp,addr stProInfo
.if(eax)
; 写入当前进程,写入内存地址为OEP,替换8个字节,替换成nop
invoke WriteProcessMemory,stProInfo.hProcess,OEP,addr lpPatch,4,NULL
.if(eax != 0) ; 如果不等于0则说明补丁替换完成
invoke ReadProcessMemory,stProInfo.hProcess,OEP,addr redPatch,4,NULL
lea eax,redPatch ; 将补丁地址取出,并用OD分析,为9090则替换完成.
.endif
.endif
ret
main endp
end main线程相关函数
创建线程函数: 默认情况下,线程创建后会被系统挂起,需要执行ResumeThread函数,将其放入前台.
.data
ThreadID DWORD ? ; 保存返回线程ID
hThread DWORD ? ; 保存线程句柄
.code
_MyThread proc lParam ; lParam为传递的参数
xor eax,eax
ret
_MyThread endp
main PROC
invoke CreateThread,NULL,0,addr _MyThread,NULL,CREATE_SUSPENDED,addr ThreadID
.if(eax)
mov hThread,eax ; 将线程句柄放入hThread
.endif
invoke ResumeThread, hThread ; 运行这个线程
ret
main ENDP
END main创建事件:
.data
lpEventName DWORD ? ; 创建的时间名称
hEventID DWORD ? ; 成功后返回的句柄
.code
main PROC
invoke CreateEvent,NULL,TRUE,TRUE,addr lpEventName
.if(eax != NULL)
mov hEventID,eax
.endif
invoke WaitForSingleObject,addr hEventID,INFINITE ; 等待一个事件
invoke SetEvent,addr hEventID ; 将事件的状态设置为:"置位"
invoke ResetEvent,hEventID ; 将事件的状态设置为:"复位"
invoke CloseHandle,hEventID ; 关闭这个句柄
ret
main ENDP
END main
DLL与线程注入
创建动态链接库
创建dll: 这里我们创建一个lyshark.asm.
.586
.model flat,stdcall
option casemap:none
include windows.inc
include kernel32.inc
include user32.inc
includelib kernel32.lib
includelib user32.lib
.data
lpText db "hello lyshark",0
lpCapt db "MsgBox",0
.code
DllEntry PROC _hInstance,_dwReason,_dwReserved
mov eax,TRUE
ret
DllEntry ENDP
_MsgBox PROC ; 无参数的信息框
invoke MessageBox,NULL,addr lpText,addr lpCapt,MB_OK
ret
_MsgBox ENDP
_MySum PROC Num_x:DWORD,Num_y:DWORD ; 一个加法计算的函数
mov eax,Num_x
add eax,Num_y
ret
_MySum endp
end DllEntry创建def: 然后在当前目录下创建一个lyshark.def文件,用来声明导入库的函数名.
EXPORTS _MsgBox
EXPORTS _MySum创建inc文件: 在当前目录继续创建一个lyshark.inc文件,并写入相应的导入函数.
_MsgBox PROTO
_MySum PROTO Num_X:DWORD,Num_Y:DWORD生成dll: 生成dll执行如下代码.
ml /c /coff lyshark.asm
link /SUBSYSTEM:WINDOWS /RELEASE /DLL /DEF:lyshark.def /OUT:"lyshark.dll" "lyshark.obj"直接调用dll:
include lyshark.inc
includelib lyshark.lib
.code
main proc
invoke _MsgBox
invoke _MySum,100,200
ret
main endp
end main动态装载dll(无参):
.data
szMyDll db "lyshark.dll",0h ; 装入的动态链接库名称
szMsgBox db "_MsgBox",0h ; 装入的函数名(无参)
hLibMod dd ? ; dll的句柄
lpMsgBox dd ? ; 函数的地址
.code
main proc
invoke LoadLibrary,addr szMyDll ; 加载指定的dll
.if(eax)
mov hLibMod,eax
invoke GetProcAddress,hLibMod,addr szMsgBox
mov lpMsgBox,eax
call lpMsgBox ; 调用MsgBox
.endif
invoke FreeLibrary,hLibMod ; 传递句柄,并释放dll
ret
main endp
end main动态装载dll(有参):
.data
szMyDll db "lyshark.dll",0h ; 装入的动态链接库名称
szMySum db "_MySum",0h ; 装入的函数名(无参)
hLibMod dd ? ; dll的句柄
lpMySum dd ? ; 函数的地址
Num_X dd 10 ; 参数x=10
Num_Y dd 20 ; 参数y=20
.code
main proc
invoke LoadLibrary,addr szMyDll ; 加载指定的dll
.if(eax)
mov hLibMod,eax
invoke GetProcAddress,hLibMod,addr szMySum
mov lpMySum,eax
push Num_Y ; 压入第二个参数
push Num_X ; 压入第一个参数
call lpMySum ; 调用_MySum 函数
.endif
invoke FreeLibrary,hLibMod ; 传递句柄,并释放dll
ret
main endp
end main远程线程DLL注入
动态调用函数: 动态的加载并使用一个函数.
.data
szDllKernel db "Kernel32.dll",0h
szFunction db "GetVersion",0h
CallAddr dd ?
.code
main proc
invoke GetModuleHandle,offset szDllKernel ; 取出模块句柄
.if(eax != 0)
invoke GetProcAddress,eax,offset szFunction ; 取出函数的地址
mov CallAddr,eax ; 保存函数地址
.endif
call CallAddr ; 直接调用kernel32.GetVersion
ret
main endp
end main编写DLL: 首先编写一个dLL用来测试
.386
.model flat,stdcall
option casemap:none
include windows.inc
include user32.inc
include kernel32.inc
includelib user32.lib
includelib kernel32.lib
.data
szText DB "welcome to asm",0h
szCaption DB "MsgBox",0h
.code
Main PROC
invoke MessageBox,NULL,addr szText,addr szCaption,MB_OK
ret
Main endp
DllEntry PROC _hInstance,_dwReason,_dwReserved
call Main
mov eax,TRUE
ret
DllEntry ENDP
END DllEntry注入DLL:
.data
szMyDll db "\lyshark.dll",0h ; 要注入的DLL
szDllKernel db "Kernel32.dll",0h
szLoadLibrary db "LoadLibraryA",0h
lpFileName db "Tutorial-i386",0h ; 指定要注入进程
lpDllName dd ?
.data?
szMyDllFull db MAX_PATH dup (?)
lpLoadLibrary dd ?
dwProcessID dd ?
dwThreadID dd ?
hProcess dd ?
.code
main PROC
; 准备工作：获取dll的全路径文件名、获取LoadLibrary函数地址等
invoke GetCurrentDirectory,MAX_PATH,addr szMyDllFull
invoke lstrcat,addr szMyDllFull,addr szMyDll
invoke GetModuleHandle,addr szDllKernel
invoke GetProcAddress,eax,offset szLoadLibrary
mov lpLoadLibrary,eax
; 查找文件管理器窗口并获取进程ID，然后打开进程
invoke FindWindow,NULL,addr lpFileName
invoke GetWindowThreadProcessId,eax,offset dwProcessID
mov dwThreadID,eax
invoke OpenProcess,PROCESS_ALL_ACCESS,FALSE,dwProcessID
mov hProcess,eax
; 在进程中分配空间并将DLL文件名拷贝过去，然后创建一个LoadLibrary线程
invoke VirtualAllocEx,hProcess,NULL,MAX_PATH,MEM_COMMIT,PAGE_READWRITE
mov lpDllName,eax
invoke WriteProcessMemory,hProcess,eax,offset szMyDllFull,MAX_PATH,NULL
invoke CreateRemoteThread,hProcess,NULL,0,lpLoadLibrary,lpDllName,0,NULL
ret
main endp
end main远程线程代码注入
注入器: 新建main.asm
.data
lpLoadLibrary dd ?
lpGetProcAddress dd ?
lpGetModuleHandle dd ?
dwProcessID dd ?
dwThreadID dd ?
hProcess dd ?
lpRemoteCode dd ?
.const
ProcHandle db "lyshark.exe",0h
KernelBase db "Kernel32.dll",0h
szLoadLibrary db "LoadLibraryA",0h
szGetProcAddress db "GetProcAddress",0h
szGetModuleHandle db "GetModuleHandleA",0h
.code
include Macro.inc
include ShellCode.asm
main proc
invoke GetModuleHandle,addr KernelBase
mov ebx,eax
invoke GetProcAddress,ebx,offset szLoadLibrary
mov lpLoadLibrary,eax
invoke GetProcAddress,ebx,offset szGetProcAddress
mov lpGetProcAddress,eax
invoke GetProcAddress,ebx,offset szGetModuleHandle
mov lpGetModuleHandle,eax
invoke FindWindow,NULL,addr ProcHandle
invoke GetWindowThreadProcessId,eax,offset dwProcessID
mov dwThreadID,eax
invoke OpenProcess,PROCESS_ALL_ACCESS,FALSE,dwProcessID
mov hProcess,eax
invoke VirtualAllocEx,hProcess,NULL,2048,MEM_COMMIT,PAGE_EXECUTE_READWRITE
.if eax
mov lpRemoteCode,eax
invoke WriteProcessMemory,hProcess,lpRemoteCode,offset REMOTE_CODE_START,1024,NULL
invoke WriteProcessMemory,hProcess,lpRemoteCode,offset lpLoadLibrary,sizeof dword * 3,NULL
mov eax,lpRemoteCode
add eax,offset _RemoteThread - offset REMOTE_CODE_START
invoke CreateRemoteThread,hProcess,NULL,0,eax,0,0,NULL
invoke CloseHandle,eax
.endif
invoke CloseHandle,hProcess
invoke ExitProcess,NULL
ret
main endp
end main反转宏: Macro.inc 用来翻转参数,定义_invoke
; --------------------------------------------
; 翻转参数字节序
reverseArgs macro arglist:VARARG
LOCAL txt,count
txt TEXTEQU <>
count=0
for i,<arglist>
count = count+1
txt TEXTEQU @CatStr(i,<!,>,<%txt>)
endm
if count GT 0
txt SUBSTR txt,1,@SizeStr(%txt)-1
endif
exitm txt
endm
; --------------------------------------------
; 创建类似于INVOKE的宏代码
_invoke macro _Proc,args:VARARG
LOCAL count
count = 0
% for i,< reverseArgs( args ) >
count = count+1
push i
endm
call dword ptr _Proc
endm注入代码: shellcode.asm
REMOTE_CODE_START equ this byte
_lpLoadLibrary dd ?
_lpGetProcAddress dd ?
_lpGetModuleHandle dd ?
; --------------------------------------------
; 存放静态资源,比如常量,字符串等.
_hInstance dd ?
_szShowTitle db "hello lyshark",0h
; --------------------------------------------
; 存放获取到的指针
_lpDllUser dd ?
_lpMessageBox dd ?
; --------------------------------------------
; 放入导入函数的字符串
_szDllUser db "user32.dll",0h
_szMessageBox db "MessageBoxA",0h,0
; --------------------------------------------
_RemoteThread proc uses ebx esi edi
LOCAL @hModule
; --------------------------------------------
; 计算指令的偏移地址,用ebx作为基址指针
call @F
@@:
pop ebx
sub ebx,offset @B
; --------------------------------------------
_invoke [ebx + _lpGetModuleHandle],NULL ; 取当前模块句柄
mov [ebx + _hInstance],eax
lea eax,[ebx + offset _szDllUser]
_invoke [ebx + _lpGetModuleHandle],eax ; 取user32.dll模块句柄
mov @hModule,eax
; --------------------------------------------
; 循环获取每个导入函数的地址,并放入指针变量保存
lea esi,[ebx + offset _szMessageBox] ; 循环获取,从该函数起始地址处
lea edi,[ebx + offset _lpMessageBox]
.while TRUE
_invoke [ebx + _lpGetProcAddress],@hModule,esi
mov [edi],eax ; 获取到函数地址后,放入导入函数字符串中
add edi,4 ; 每次递增4字节,指向下一个函数,遇到0则停止
@@:
lodsb
or al,al
jnz @B
.break .if !byte ptr [esi]
.endw
; --------------------------------------------
;lea esi,[ebx+ offset _szMessageBox] ; 取msgbox模块地址
;_invoke [ebx+_lpGetProcAddress],@hModule,esi ; 获取地址
;mov [ebx+_lpMessageBox],eax ; 存入变量中
lea esi,[ebx + offset _szShowTitle] ; 获取弹窗资源
_invoke [ebx + _lpMessageBox],0,esi,eax,0 ; 调用信息框
ret
_RemoteThread endp创建Windows钩子
创建DLL文件: hookdll.dll
.386
.model flat,stdcall
option casemap:none
include windows.inc
include user32.inc
include kernel32.inc
includelib user32.lib
includelib kernel32.lib
.data?
hInstdll dd ? ; dll句柄
hHook dd ? ; 钩子句柄
szAscii db 5 dup (?)
.code
; ------------------------------------------------------------------
; 钩子回调函数,这里按键后,弹出信息框提示
CallBack proc nCode:DWORD,wParam:DWORD,lParam:DWORD
LOCAL @szKeyState[256]:byte
invoke CallNextHookEx,hHook,nCode,wParam,lParam
invoke GetKeyboardState,addr @szKeyState
invoke GetKeyState,VK_SHIFT
mov @szKeyState+VK_SHIFT,al
mov ecx,lParam
shr ecx,16
invoke ToAscii,wParam,ecx,addr @szKeyState,addr szAscii,0
mov byte ptr szAscii [eax],0
invoke MessageBox,NULL,addr wParam,0,MB_OK ; 弹出信息框
ret
CallBack endp
; ------------------------------------------------------------------
; 加载钩子,安装hook的子程序
installhook proc
invoke SetWindowsHookEx,WH_KEYBOARD,addr CallBack,hInstdll,NULL
mov hHook,eax
ret
installhook endp
; ------------------------------------------------------------------
; 卸载钩子,清除hook的子程序
uninstallhook proc
invoke UnhookWindowsHookEx,hHook
ret
uninstallhook endp
; ------------------------------------------------------------------
; DllMain 程序入口函数
DllMain proc _hInstance:HINSTANCE,_dwReason:DWORD, _dwResverved:DWORD
.if(_dwReason == DLL_PROCESS_ATTACH)
push _hInstance
pop hInstdll
.elseif(_dwReason == DLL_PROCESS_DETACH)
call uninstallhook
.endif
mov eax,TRUE
ret
DllMain endp
end DllMain创建inc文件: hookdll.inc
installhook proto
uninstallhook proto创建def: hookdll.def,并将目录下的hook.dll,hook.inc,hook.lib 拷贝出来.
LIBRARY hookdll
EXPORTS installhook
EXPORTS uninstallhook创建主程序: 创建main.asm文件,并将hookdll.dll,hookdll.inc,hookdll.lib拷贝到目录下.
include hookdll.inc
includelib hookdll.lib
.data?
hInstance dd ?
uMsg MSG <?>
.code
main proc
invoke installhook
invoke GetModuleHandle,NULL
mov hInstance,eax
.while(TRUE)
invoke GetMessage,addr uMsg,NULL,0,0
invoke TranslateMessage,addr uMsg
invoke DispatchMessage,addr uMsg
.endw
invoke uninstallhook
ret
main endp
end main
注册表和INI文件
注册表相关
遍历子键: HKEY_LOCAL_MACHINE中的子键
include msvcrt.inc
includelib msvcrt.lib
include advapi32.inc
includelib advapi32.lib
.data
dwIndex dd ?
dwSize dd ?
szBuffer db 256 dup(?)
PrintText db "%s",0ah
.code
main proc
mov dwIndex,0
.while(TRUE)
mov dwSize,offset szBuffer
invoke RegEnumKeyEx,HKEY_LOCAL_MACHINE,dwIndex,addr szBuffer,addr dwSize, \
NULL,NULL,NULL,NULL
.break .if eax == ERROR_NO_MORE_ITEMS
invoke crt_printf,addr PrintText,addr szBuffer
inc dwIndex
.endw
ret
main endp
end main创建键值:
include advapi32.inc
includelib advapi32.lib
.data
szKeyPATH db "Software\\Microsoft\\Windows\\CurrentVersion\\Run",0h
szValueName db "AutoRun Shell",0h
szFileName db MAX_PATH dup(?)
.code
_RegSetValue proc _lpszKey,_lpszValueName,_lpszValue,_dwValueType,_dwSize
LOCAL @hKey
invoke RegCreateKey,HKEY_LOCAL_MACHINE,_lpszKey,addr @hKey
.if (eax == ERROR_SUCCESS)
invoke RegSetValueEx,@hKey,_lpszValueName,NULL,\
_dwValueType,_lpszValue,_dwSize
invoke RegCloseKey,@hKey
.endif
ret
_RegSetValue endp
main proc
invoke GetModuleFileName,NULL,addr szFileName,MAX_PATH ; 获取文件全路径
inc eax
invoke _RegSetValue,addr szKeyPATH,addr szValueName,addr szFileName,REG_SZ,eax
ret
main endp
end main删除键值:
include advapi32.inc
includelib advapi32.lib
.data
szKeyPATH db "Software\\Microsoft\\Windows\\CurrentVersion\\Run",0h
szValueName db "AutoRun Shell",0h
.code
_RegDelValue proc _lpszKey,_lpszValueName
LOCAL @hKey
invoke RegOpenKeyEx,HKEY_LOCAL_MACHINE,_lpszKey,NULL,KEY_WRITE,addr @hKey
.if(eax == ERROR_SUCCESS)
invoke RegDeleteValue,@hKey,_lpszValueName
invoke RegCloseKey,@hKey
.endif
ret
_RegDelValue endp
main proc
invoke _RegDelValue,addr szKeyPATH,addr szValueName
ret
main endp
end main创建子键
include advapi32.inc
includelib advapi32.lib
.data
lpszKey db "Software\Microsoft\\Windows\\CurrentVersion\\Run\\",0h
lpszSubKey db "MySub",0h
.code
_RegCreateKey proc _lpszKey,_lpszSubKeyName
LOCAL @hKey,@hSubkey,@dwDisp
invoke RegOpenKeyEx,HKEY_LOCAL_MACHINE,_lpszKey,NULL,KEY_CREATE_SUB_KEY,addr @hKey
.if eax == ERROR_SUCCESS
invoke RegCreateKeyEx,@hKey,_lpszSubKeyName,NULL,NULL,\
NULL,NULL,NULL,addr @hSubkey,addr @dwDisp
invoke RegCloseKey,@hKey
invoke RegCloseKey,@hSubkey
.endif
ret
_RegCreateKey endp
main proc
invoke _RegCreateKey,addr lpszKey,addr lpszSubKey
ret
main endp
end main删除子键：
include advapi32.inc
includelib advapi32.lib
.data
lpszKey db "Software\Microsoft\\Windows\\CurrentVersion\\Run\\",0h
lpszSubKey db "MySub",0h
.code
_RegDelSubKey proc _lpszKey,_lpszSubKeyName
LOCAL @hKey
invoke RegOpenKeyEx,HKEY_LOCAL_MACHINE,_lpszKey,NULL,KEY_WRITE,addr @hKey
.if eax == ERROR_SUCCESS
invoke RegDeleteKey,@hKey,_lpszSubKeyName
invoke RegCloseKey,@hKey
.endif
ret
_RegDelSubKey endp
main proc
invoke _RegDelSubKey,addr lpszKey,addr lpszSubKey
ret
main endp
end main读取键值：
include advapi32.inc
includelib advapi32.lib
.data
lpDwSize dd 1024
lpValue db 1024 dup(?)
szKeyPATH db "Software\\Microsoft\\Windows\\CurrentVersion\\Run\\",0h
szValueName db "IgfxTray",0h
.code
_RegQueryValue proc _lpszKey,_lpszValueName,_lpszValue,_lpdwSize,_lpdwType
LOCAL @hKey,@dwReturn
mov @dwReturn,-1
invoke RegOpenKeyEx,HKEY_LOCAL_MACHINE,_lpszKey,NULL,\
KEY_QUERY_VALUE,addr @hKey
.if eax == ERROR_SUCCESS
invoke RegQueryValueEx,@hKey,_lpszValueName,NULL,_lpdwType,\
_lpszValue,_lpdwSize
mov @dwReturn,eax
invoke RegCloseKey,@hKey
.endif
mov eax,@dwReturn
ret
_RegQueryValue endp
main proc
invoke _RegQueryValue,addr szKeyPATH,addr szValueName,addr lpValue,addr lpDwSize,0
lea eax,lpValue
ret
main endp
end main设置开机自启动:
include advapi32.inc
includelib advapi32.lib
.data
szhKey dd ?
szFileName db MAX_PATH dup(?) ; 获取当前路径
szKeyAutoRun db "Software\\Microsoft\\Windows\\CurrentVersion\\Run",0h ; 写入子键
szValueAutoRun db "AutoRun Shell",0h ; 写入的名称
.code
main proc
invoke GetModuleFileName,NULL,addr szFileName,MAX_PATH ; 获取文件全路径
invoke RegCreateKey,HKEY_LOCAL_MACHINE,addr szKeyAutoRun,addr szhKey
.if(eax == ERROR_SUCCESS)
invoke RegSetValueEx,szhKey,addr szValueAutoRun,NULL,REG_SZ, \
addr szFileName,sizeof szFileName
.endif
ret
main endp
end mainINI文件相关
创建INI: Option.ini
[lyshark] ; 字段1
X=1024
Y=2048
Z=4096
[IniDemo] ; 字段2
StringKey=hello,lyshark!
IntKey=123123
ToString=lyshark遍历Section列表:
include msvcrt.inc
includelib msvcrt.lib
.data
szStrlen dd ?
szBuffer1 db 20480 dup(?)
szININame db ".\Option.ini",0h
szFmtSection db "[%s]",0h
PrintText db "%s ",0ah
.code
main proc
LOCAL @szBuffer[256]:byte
invoke GetPrivateProfileSectionNames,addr szBuffer1,sizeof szBuffer1,addr szININame
mov esi,offset szBuffer1
.while byte ptr [esi]
invoke wsprintf,addr @szBuffer,addr szFmtSection,esi
invoke crt_printf,addr PrintText,esi ; 打印键值
invoke lstrlen,esi
add esi,eax
inc esi
.endw
ret
main endp
end main遍历键值对
include msvcrt.inc
includelib msvcrt.lib
.data
szStrlen dd ?
szBuffer db 2048 dup(?)
szININame db ".\Option.ini",0h ; 指定要遍历的文件
szPrintKey db "lyshark",0h ; 指定要遍历的key
szFmtSection db "[%s]",0h
PrintText db "%s ",0ah
.code
main proc
invoke GetPrivateProfileSection,addr szPrintKey,addr szBuffer,sizeof szBuffer,addr szININame
mov edi,offset szBuffer
.while byte ptr [edi]
invoke crt_printf,addr PrintText,edi ; 打印key
invoke lstrlen,edi
add edi,eax
inc edi
.endw
invoke lstrlen,esi
add esi,eax
inc esi
ret
main endp
end main拼接并打印字符串:
include masm32.inc
includelib masm32.lib
.data
szBuffer db 2048 dup(?) ; 保存当前路径
szININame db "\Option.ini",0h ; 配置文件路径
.code
main proc
invoke GetCurrentDirectory,MAX_PATH,addr szBuffer
mov esi,offset szBuffer
invoke lstrlen,esi
mov ecx,offset szININame
.if byte ptr [esi+eax-1] == '\'
inc ecx
.endif
invoke lstrcat,esi,ecx
invoke StdOut, eax ; 打印拼接后的字符串
ret
main endp
end main读取:
.data
szININame db ".\Option.ini",0h ; 指定要遍历的文件
szSecPos db "IniDemo",0h ; 指定要遍历的key
szKeyInt db "IntKey",0h ; 要读取的整数字段值
szKeyStr db "StringKey",0h ; 要读取的字符串字段
szBuffer db 2048 dup(?)
.code
main proc
invoke GetPrivateProfileInt,addr szSecPos,addr szKeyInt,50,addr szININame ; 读取整数
invoke GetPrivateProfileString,addr szSecPos,addr szKeyStr,0, \
addr szBuffer,sizeof szBuffer,addr szININame ; 读取字符串
lea eax,szBuffer
ret
main endp
end main添加/删除键值:
include masm32.inc
includelib masm32.lib
.data
szBuffer db 2048 dup(?) ; 保存当前路径
szININame db ".\Option.ini",0h ; 配置文件路径
szAppName db "IniDemo",0h ; 字段为IniDemo
lpAppKey db "Temp",0h ; 键值对为Temp
lpAppStr db "app temp",0h ; 键值对值
lpAppNew db "hello temp",0h ; 新的键值对
.code
main proc
; 在IniDemo中添加 Temp=apptemp
invoke WritePrivateProfileString,addr szAppName,addr lpAppKey,addr lpAppStr,addr szININame
; 将IniDemo中的Temp=app temp修改为Temp=hello temp
invoke WritePrivateProfileString,addr szAppName,addr lpAppKey,addr lpAppNew,addr szININame
; 删除IniDemo中的Temp键值对
invoke WritePrivateProfileString,addr szAppName,addr lpAppKey,NULL,addr szININame
; 清空IniDemo底下的所有键值对
invoke WritePrivateProfileString,addr szAppName,NULL,NULL,addr szININame
ret
main endp
end main## 通用对话框
设置页面对话框:
include Comdlg32.inc
includelib Comdlg32.lib
.code
main proc
LOCAL @stPS:PAGESETUPDLG
invoke RtlZeroMemory,addr @stPS,sizeof @stPS
mov @stPS.lStructSize,sizeof @stPS
mov @stPS.hwndOwner,0
invoke PageSetupDlg,addr @stPS
.if eax && @stPS.hDevMode
mov eax,@stPS.hDevMode
mov eax,[eax]
invoke MessageBox,0,eax,0,MB_OK
.endif
ret
main endp
end main打开对话框:
include Comdlg32.inc
includelib Comdlg32.lib
.data
szFilter db 'Text Files(*.txt)',0,'*.txt',0,'All Files(*.*)',0,'*.*',0,0
szFileName db MAX_PATH dup (?)
.code
main proc
LOCAL @stOF:OPENFILENAME
invoke RtlZeroMemory,addr @stOF,sizeof @stOF
mov @stOF.lStructSize,sizeof @stOF
mov @stOF.hwndOwner,eax
mov @stOF.lpstrFilter,offset szFilter
mov @stOF.lpstrFile,offset szFileName
mov @stOF.nMaxFile,MAX_PATH
mov @stOF.Flags,OFN_FILEMUSTEXIST or OFN_PATHMUSTEXIST
invoke GetOpenFileName,addr @stOF
.if eax
invoke MessageBox,NULL,addr szFileName,0,MB_OK
.endif
ret
main endp
end main保存对话框:
include Comdlg32.inc
includelib Comdlg32.lib
.data
szFilter db 'Text Files(*.txt)',0,'*.txt',0,'All Files(*.*)',0,'*.*',0,0
szFileName db MAX_PATH dup (?)
szDefExt db 'txt',0
szSaveCaption db '请输入保存的文件名',0
.code
main proc
LOCAL @stOF:OPENFILENAME
invoke RtlZeroMemory,addr @stOF,sizeof @stOF
mov @stOF.lStructSize,sizeof @stOF
mov @stOF.hwndOwner,0
mov @stOF.lpstrFilter,offset szFilter
mov @stOF.lpstrFile,offset szFileName
mov @stOF.nMaxFile,MAX_PATH
mov @stOF.Flags,OFN_PATHMUSTEXIST
mov @stOF.lpstrDefExt,offset szDefExt
mov @stOF.lpstrTitle,offset szSaveCaption
invoke GetSaveFileName,addr @stOF
.if eax
invoke MessageBox,NULL,addr szFileName,0,MB_OK
.endif
ret
main endp
end main选择颜色:
include Comdlg32.inc
includelib Comdlg32.lib
.data
dwBackColor dd ?
dwCustColors dd 16 dup (?)
szBuffer db 1024 dup (?)
szFormatColor db "您选择的颜色值：%08x",0
.code
main proc
LOCAL @stCC:CHOOSECOLOR
invoke RtlZeroMemory,addr @stCC,sizeof @stCC
mov @stCC.lStructSize,sizeof @stCC
mov @stCC.hwndOwner,0
push dwBackColor
pop @stCC.rgbResult
mov @stCC.Flags,CC_RGBINIT or CC_FULLOPEN
mov @stCC.lpCustColors,offset dwCustColors
invoke ChooseColor,addr @stCC
.if eax
push @stCC.rgbResult
pop dwBackColor
invoke wsprintf,addr szBuffer,addr szFormatColor,dwBackColor
invoke MessageBox,NULL,addr szBuffer,0,MB_OK
.endif
ret
main endp
end main选择字体:
include Comdlg32.inc
includelib Comdlg32.lib
.data
stLogFont LOGFONT <?>
dwFontColor dd ?
szBuffer db 1024 dup (?)
szFormatFont db '字体名称：%s',0dh,0ah
.code
main proc
LOCAL @stCF:CHOOSEFONT
invoke RtlZeroMemory,addr @stCF,sizeof @stCF
mov @stCF.lStructSize,sizeof @stCF
mov @stCF.hwndOwner,0
mov @stCF.lpLogFont,offset stLogFont
push dwFontColor
pop @stCF.rgbColors
mov @stCF.Flags,CF_SCREENFONTS or CF_INITTOLOGFONTSTRUCT or CF_EFFECTS
invoke ChooseFont,addr @stCF
.if eax
push @stCF.rgbColors
pop dwFontColor
invoke wsprintf,addr szBuffer,addr szFormatFont,addr stLogFont.lfFaceName,\
dwFontColor,@stCF.iPointSize
invoke MessageBox,NULL,addr szBuffer,0,MB_OK
.endif
ret
main endp
end main## 网络相关函数
服务端:
import socket
ip_addr=("127.0.0.1",6666)
server = socket.socket()
server.bind(ip_addr)
server.listen(5)
while True:
conn,addr=server.accept()
print(addr)
send_data = input("input:")
conn.send(bytes(send_data,encoding="ascii"))
recv_data = conn.recv(1024)
print(str(recv_data, encoding="utf-8"))客户端:
.386
.model flat,stdcall
option casemap:none
include windows.inc
include user32.inc
include ws2_32.inc
include kernel32.inc
includelib user32.lib
includelib kernel32.lib
includelib ws2_32.lib
TCP_PORT equ 6666
.data
WSAData WSADATA <>
stSin sockaddr_in <>
szServer byte "127.0.0.1",0h
sock dd ?
Buff BYTE 256 dup (?) ; 接收数据的缓冲区
Send BYTE "hello",0h ; 发送数据缓冲区
.code
main proc
invoke WSAStartup,0202h,addr WSAData
invoke socket,AF_INET, SOCK_STREAM, 0
.if(eax != INVALID_SOCKET)
mov sock,eax
.endif
mov stSin.sin_family,AF_INET
invoke htons,TCP_PORT
mov stSin.sin_port,ax
invoke inet_addr,addr szServer
mov stSin.sin_addr,eax
invoke connect,sock,addr stSin,sizeof stSin ; 连接套接字
invoke recv,sock,addr Buff,sizeof Buff,0 ; 接收内容
lea eax,Buff
invoke send,sock,addr Send,sizeof Send,0 ; 发送数据
invoke closesocket,sock
invoke WSACleanup
ret
main endp
end main改进版
服务端:
import socket
ip_addr=("127.0.0.1",6666)
server = socket.socket()
server.bind(ip_addr)
server.listen(5)
conn, addr = server.accept()
print(addr)
while True:
send_data = input("input:")
conn.send(bytes(send_data,encoding="ascii"))
recv_data = conn.recv(1024)
print(str(recv_data, encoding="ascii"))客户端:
.386
.model flat,stdcall
option casemap:none
include windows.inc
include user32.inc
include ws2_32.inc
include kernel32.inc
includelib user32.lib
includelib kernel32.lib
includelib ws2_32.lib
TCP_PORT equ 6666
.data
WSAData WSADATA <>
stSin sockaddr_in <>
szServer byte "127.0.0.1",0h
sock dd ?
Buff BYTE 256 dup (?) ; 接收数据的缓冲区
Send BYTE "ls",0h ; 发送数据缓冲区
Send1 BYTE "down",0h
cmdls BYTE "ls",0h
cmddown BYTE "down",0h
.code
main proc
invoke WSAStartup,0202h,addr WSAData
invoke socket,AF_INET, SOCK_STREAM, 0
.if(eax != INVALID_SOCKET)
mov sock,eax
.endif
invoke RtlZeroMemory,addr stSin,sizeof stSin
mov stSin.sin_family,AF_INET
invoke htons,TCP_PORT
mov stSin.sin_port,ax
invoke inet_addr,addr szServer
mov stSin.sin_addr,eax
invoke connect,sock,addr stSin,sizeof stSin ; 连接套接字
.while(1)
invoke RtlZeroMemory,addr Buff,sizeof Buff
invoke recv,sock,addr Buff,sizeof Buff,0
invoke lstrcmp,addr cmdls,addr Buff ; 对比字符串是否是ls
.if(eax==0)
invoke send,sock,addr Send,sizeof Send,0
.continue
.endif
invoke lstrcmp,addr Buff,addr cmddown ; 对比是不是down
.if(eax==0)
invoke send,sock,addr Send1,sizeof Send1,0
.continue
.endif
.endw
invoke closesocket,sock
invoke WSACleanup
ret
main endp
end main版权声明：本文标题：Win32汇编：常用系统API函数 内容由网友自发贡献，该文观点仅代表作者本人， 转载请联系作者并注明出处：http://www.freenas.com.cn/jishu/1726256449h924347.html， 本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌抄袭侵权/违法违规的内容，一经查实，本站将立刻删除。
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