64位系统和32位系统,DLL注入一样吗?

2010-01-29 05:36:23 1.6k 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

win7 64 DLL的远程注入技术及注入dll函数调用一、DLL注入 DLL的远程注入技术是目前Win32病毒广泛使用的一种技术。使用这种技术的病毒体通常位于一个DLL中，在系统启动的时候，一个EXE程序会将这个DLL加载至某些系统进程（如Explorer.exe）中运行。这样一来，普通的进程管理器就很难发现这种病毒了，而且即使发现了也很难清除，因为只要病毒寄生的进程不终止运行，那么这个DLL就不会在内存中卸载，用户也就无法在资源管理器阅读详情

提供测试代码如下:
Public Class Form1

Public Const PROCESS_VM_READ = &H10
Public Const TH32CS_SNAPPROCESS = &H2
Public Const MEM_COMMIT = 4096
Public Const PAGE_READWRITE = 4
Public Const PROCESS_CREATE_THREAD = (&H2)
Public Const PROCESS_VM_OPERATION = (&H8)
Public Const PROCESS_VM_WRITE = (&H20)

Public Declare Function ReadProcessMemory Lib "kernel32" (ByVal hProcess As Integer, ByVal lpBaseAddress As Integer, ByVal lpBuffer As String, ByVal nSize As Integer, ByRef lpNumberOfBytesWritten As Integer) As Integer
Public Declare Function GetLastError Lib "kernel32" () As Integer
Public Declare Function LoadLibrary Lib "kernel32" Alias "LoadLibraryA" (ByVal lpLibFileName As String) As Integer
Public Declare Function VirtualAllocEx Lib "kernel32" (ByVal hProcess As Integer, ByVal lpAddress As Integer, ByVal dwSize As Integer, ByVal flAllocationType As Integer, ByVal flProtect As Integer) As Integer
Public Declare Function WriteProcessMemory Lib "kernel32" (ByVal hProcess As Integer, ByVal lpBaseAddress As Integer, ByVal lpBuffer As String, ByVal nSize As Integer, ByRef lpNumberOfBytesWritten As Integer) As Integer
Public Declare Function GetProcAddress Lib "kernel32" (ByVal hModule As Integer, ByVal lpProcName As String) As Integer
Public Declare Function GetModuleHandle Lib "kernel32" Alias "GetModuleHandleA" (ByVal lpModuleName As String) As Integer
Public Declare Function CreateRemoteThread Lib "kernel32" (ByVal hProcess As Integer, ByVal lpThreadAttributes As Integer, ByVal dwStackSize As Integer, ByVal lpStartAddress As Integer, ByVal lpParameter As Integer, ByVal dwCreationFlags As Integer, ByRef lpThreadId As Integer) As Integer
Public Declare Function OpenProcess Lib "kernel32" (ByVal dwDesiredAccess As Integer, ByVal bInheritHandle As Integer, ByVal dwProcessId As Integer) As Integer

Private TargetProcessHandle As Integer
Private TargetWindowHandle As Integer
Private TargetProcessID As Integer
Private pfnStartAddr As Integer
Private pszLibFileRemote As String
Private TargetBufferSize As Integer

Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Integer
Private Declare Function GetWindowThreadProcessId Lib "user32" Alias "GetWindowThreadProcessId" (ByVal hwnd As Integer, ByRef lpdwProcessId As Integer) As Integer

Public Sub Inject() REM 对记事本插入一个线程
TargetWindowHandle = FindWindow(Nothing, "无标题.txt 记事本") '这个需要改的和标题一样
If TargetWindowHandle = 0 Then MsgBox("NotePad Not Found。Exit") : Me.Close() : Exit Sub

GetWindowThreadProcessId(TargetWindowHandle, TargetProcessID)
TargetProcessHandle = OpenProcess(PROCESS_CREATE_THREAD Or PROCESS_VM_OPERATION Or PROCESS_VM_WRITE, False, TargetProcessID)
MsgBox(TargetProcessHandle.ToString)
pszLibFileRemote = Application.StartupPath & "\testdll.dll"
pfnStartAddr = GetProcAddress(GetModuleHandle("Kernel32"), "LoadLibraryA")
MsgBox(pfnStartAddr.ToString)
TargetBufferSize = 1 + Len(pszLibFileRemote)
Dim Rtn As Integer
Dim LoadLibParamAdr As Integer
LoadLibParamAdr = VirtualAllocEx(TargetProcessHandle, 0, TargetBufferSize, MEM_COMMIT, PAGE_READWRITE)

Rtn = WriteProcessMemory(TargetProcessHandle, LoadLibParamAdr, pszLibFileRemote, TargetBufferSize, 0)
MsgBox(Rtn.ToString, MsgBoxStyle.OkOnly, "WriteProcessMemory")

CreateRemoteThread(TargetProcessHandle, 0, 0, pfnStartAddr, LoadLibParamAdr, 0, 0)

Me.Close()
End Sub

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Inject()
End Sub
End Class
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在64位系统下测试失败,我用win7 64位和vb 2005...高手帮忙测试一下是为什么,我用360扫描的,DLL没有注入进去.

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