www.pudn.com > PE恅璃潠等樓躇ㄗ樓褲)--埭鎢.rar > uEncrypt.pas
{******************************************************************************}
{ Author: Liwuyue }
{ Email: smokingroom@sina.com }
{ Home page: http://www.programmerlife.com }
{ built: 2005-03-08 }
{******************************************************************************}
unit uEncrypt;
interface
uses
Windows, SysUtils, Messages;
procedure Encrypt(Handle:HWND; LFileName:string;LPassword:string;LBackup:Boolean);
function AttachStart:DWORD;stdcall;
procedure AttachProc;stdcall;
function AttachWindowProc(hwnd:HWND;uMsg:UINT;wParam:WPARAM;lParam:LPARAM):LRESULT;stdcall;
function CalcCrc32(lpSource:PChar;nLength:Integer):DWORD;stdcall;
procedure AttachEnd;stdcall;
implementation
const
hWndAttachExStyle = 0;
hWndAttachStyle = WS_MINIMIZEBOX or WS_SYSMENU or WS_CAPTION or WS_OVERLAPPED; //WS_SIZEBOX
dwWndAttachWidth = 320;
dwWndAttachHeight = 120;
IDC_EDIT_PASSWORD = 100;
IDC_BUTTON_OK = 101;
IDC_BUTTON_CANCEL = 102;
IDM_ATTACH_MENU_ABOUT = 103;
MAX_PASSWORD_LENGTH = 16;
type
TGetProcAddress = function(hModule:HMODULE;lpProcName:LPCSTR):Pointer;stdcall;
TLoadLibrary = function(lpLibFileName:PChar):HMODULE;stdcall;
TFreeLibrary = function(hLibModule:HMODULE):BOOL;stdcall;
TExitProcess = procedure(uExitCode:UINT);stdcall;
TGetModuleHandle = function(lpModuleName:PChar):HMODULE;stdcall;
TGetMessage = function(var lpMsg:TMsg;hWnd:HWND;wMsgFilterMin,wMsgFilterMax:UINT):BOOL;stdcall;
TTranslateMessage = function(const lpMsg:TMsg):BOOL; stdcall;
TDispatchMessage = function(const lpMsg:TMsg):Longint; stdcall;
TGetSystemMetrics = function(nIndex:Integer): Integer; stdcall;
TPostMessage = function(hWnd:HWND;Msg:UINT;wParam:WPARAM;lParam:LPARAM):BOOL;stdcall;
TSendMessage = function(hWnd:HWND;Msg:UINT;wParam:WPARAM;lParam:LPARAM):LRESULT;stdcall;
TShowWindow = function(hWnd:HWND;nCmdShow:Integer):BOOL;stdcall;
TUpdateWindow = function(hWnd:HWND):BOOL;stdcall;
TLoadCursor = function(hInstance:HINST;lpCursorName:PAnsiChar):HCURSOR;stdcall;
TLoadIcon = function(hInstance:HINST;lpIconName:PAnsiChar):HICON; stdcall;
TPostQuitMessage = procedure(nExitCode:Integer);stdcall;
TMessageBox = function(hWnd:HWND;lpText,lpCaption:PChar;uType:UINT):Integer;stdcall;
TRegisterClassEx = function(const WndClass:TWndClassEx):ATOM;stdcall;
TCreateWindowEx = function(dwExStyle:DWORD;lpClassName:PChar;
lpWindowName:PChar;dwStyle:DWORD;X,Y,nWidth,nHeight:Integer;
hWndParent:HWND;hMenu:HMENU;hInstance:HINST;lpParam:Pointer):HWND;stdcall;
TDefWindowProc = function(hWnd:HWND;Msg:UINT;wParam:WPARAM;lParam:LPARAM):LRESULT;stdcall;
TSetFocus = function(hWnd:HWND):HWND;stdcall;
TGetWindowLong = function(hWnd:HWND;nIndex:Integer):Longint;stdcall;
TSetWindowLong = function(hWnd:HWND;nIndex:Integer;dwNewLong:Longint):Longint; stdcall;
TGetDlgItemText = function(hDlg:HWND;nIDDlgItem:Integer;lpString:PChar;nMaxCount:Integer):UINT;stdcall;
TGetSystemMenu = function(hWnd:HWND;bRevert:BOOL):HMENU;stdcall;
TAppendMenu = function(hMenu:HMENU;uFlags,uIDNewItem:UINT;lpNewItem:PChar):BOOL;stdcall;
TCreateFontIndirect = function(const p1:TLogFont):HFONT;stdcall;
TDeleteObject = function(p1:HGDIOBJ):BOOL;stdcall;
TIsDialogMessage = function(hDlg:HWND;var lpMsg:TMsg):BOOL;stdcall;
TGetDlgItem = function(hDlg:HWND;nIDDlgItem:Integer):HWND;stdcall;
Twsprintf = function(Output:PChar;Format:PChar;arglist:va_list):Integer;stdcall;
TSetWindowText = function(hWnd:HWND;lpString:PChar):BOOL;stdcall;
Tlstrlen = function(lpString:PChar):Integer;stdcall;
type
PAttachData=^TAttachData;
TAttachData=packed record
hLibUser32: HMODULE;
hLibGDI32: HMODULE;
_GetProcAddress: TGetProcAddress;
_LoadLibrary: TLoadLibrary;
_FreeLibrary: TFreeLibrary;
_ExitProcess: TExitProcess;
_GetModuleHandle: TGetModuleHandle;
_lstrlen: Tlstrlen;
_GetMessage: TGetMessage;
_TranslateMessage: TTranslateMessage;
_DispatchMessage: TDispatchMessage;
_GetSystemMetrics: TGetSystemMetrics;
_PostMessage: TPostMessage;
_SendMessage: TSendMessage;
_ShowWindow: TShowWindow;
_UpdateWindow: TUpdateWindow;
_LoadCursor: TLoadCursor;
_LoadIcon: TLoadIcon;
_PostQuitMessage: TPostQuitMessage;
_MessageBox: TMessageBox;
_RegisterClassEx: TRegisterClassEx;
_CreateWindowEx: TCreateWindowEx;
_DefWindowProc: TDefWindowProc;
_SetFocus: TSetFocus;
_GetWindowLong: TGetWindowLong;
_SetWindowLong: TSetWindowLong;
_GetDlgItemText: TGetDlgItemText;
_GetSystemMenu: TGetSystemMenu;
_AppendMenu: TAppendMenu;
_CreateFontIndirect: TCreateFontIndirect;
_DeleteObject: TDeleteObject;
_IsDialogMessage: TIsDialogMessage;
_GetDlgItem: TGetDlgItem;
_wsprintf: Twsprintf;
_SetWindowText: TSetWindowText;
szLibUser32: array[0..6] of Char; // "user32"
szLibGDI32: array[0..5] of Char; // "gdi32"
szLoadLibrary: array[0..12] of Char; // "LoadLibraryA"
szFreeLibrary: array[0..11] of Char; // "FreeLibrary"
szExitProcess: array[0..11] of Char; // "ExitProcess"
szGetModuleHandle: array[0..16] of Char; // "GetModuleHandleA"
szlstrlen: array[0..8] of Char; // "lstrlenA"
szGetMessage: array[0..11] of Char; // "GetMessageA"
szTranslateMessage: array[0..16] of Char; // "TranslateMessage"
szDispatchMessage: array[0..16] of Char; // "DispatchMessageA"
szGetSystemMetrics: array[0..16] of Char; // "GetSystemMetrics"
szPostMessage: array[0..12] of Char; // "PostMessageA"
szSendMessage: array[0..12] of Char; // "SendMessageA"
szShowWindow: array[0..10] of Char; // "ShowWindow"
szUpdateWindow: array[0..12] of Char; // "UpdateWindow"
szLoadCursor: array[0..11] of Char; // "LoadCursorA"
szLoadIcon: array[0..9] of Char; // "LoadIconA"
szPostQuitMessage: array[0..15] of Char; // "PostQuitMessage"
szMessageBox: array[0..11] of Char; // "MessageBoxA"
szRegisterClassEx: array[0..16] of Char; // "RegisterClassExA"
szCreateWindowEx: array[0..15] of Char; // "CreateWindowExA"
szDefWindowProc: array[0..14] of Char; // "DefWindowProcA"
szSetFocus: array[0..8] of Char; // "SetFocus"
szGetWindowLong: array[0..14] of Char; // "GetWindowLongA"
szSetWindowLong: array[0..14] of Char; // "SetWindowLongA"
szGetDlgItemText: array[0..15] of Char; // "GetDlgItemTextA"
szGetSystemMenu: array[0..13] of Char; // "GetSystemMenu"
szAppendMenu: array[0..11] of Char; // "AppendMenuA"
szIsDialogMessage: array[0..15] of Char; // "IsDialogMessage"
szGetDlgItem: array[0..10] of Char; // "GetDlgItem"
szwsprintf: array[0..10] of Char; // "wvsprintfA"
szSetWindowText: array[0..14] of Char; // "SetWindowTextA"
szCreateFontIndirect: array[0..19] of Char; // "CreateFontIndirectA"
szDeleteObject: array[0..12] of Char; // "DeleteObject"
_szAppClass: array[0..10] of Char; // "PE Encrypt"
_szAppTitle: array[0..20] of Char; // "PE Encrypt :: v1.0"
_szMenuAbout: array[0..20] of Char; // "&About PE Encrypt..."
_szMsgAbout: array[0..150] of Char; //
_szClassEdit: array[0..4] of Char; // "Edit"
_szClassStatic: array[0..6] of Char; // "Static"
_szClassButton: array[0..6] of Char; // "Button"
_szTitlePassword: array[0..11] of Char; // "請輸入密碼:"
_szOK: array[0..8] of Char; // "確定(&O)"
_szCancel: array[0..8] of Char; // "取消(&C)"
_szWrongPassword: array[0..24] of Char; // "密碼不正確,請重新輸入!"
_szTemplate: array[0..29] of Char; // "--= 你還剩下 %d 次機會 =--"
_dwPasswordCrc32: DWORD; // 密碼的CRC32校檢碼
_szChanceCount: array[0..255] of Char; // 256字節的緩衝區
_hWndAttach: HWND;
_fnt: LOGFONT;
_hFont: THandle;
_bCorrect: Byte;
_hWndChanceCount: HWND;
_wc: WNDCLASSEX;
_nCount: DWORD;
_ImageBase: DWORD;
_EntryPoint: DWORD;
end;
var
AttachData:TAttachData;
procedure Init_AttachData;
begin
//初始化數據
FillChar(AttachData,SizeOf(Attachdata),0);
with AttachData do
begin
szLibUser32 :='user32'#0;
szLibGDI32 :='gdi32'#0;
szLoadLibrary :='LoadLibraryA'#0;
szFreeLibrary :='FreeLibrary'#0;
szExitProcess :='ExitProcess'#0;
szGetModuleHandle :='GetModuleHandleA'#0;
szlstrlen :='lstrlenA'#0;
szGetMessage :='GetMessageA'#0;
szTranslateMessage :='TranslateMessage'#0;
szDispatchMessage :='DispatchMessageA'#0;
szGetSystemMetrics :='GetSystemMetrics'#0;
szPostMessage :='PostMessageA'#0;
szSendMessage :='SendMessageA'#0;
szShowWindow :='ShowWindow'#0;
szUpdateWindow :='UpdateWindow'#0;
szLoadCursor :='LoadCursorA'#0;
szLoadIcon :='LoadIconA'#0;
szPostQuitMessage :='PostQuitMessage'#0;
szMessageBox :='MessageBoxA'#0;
szRegisterClassEx :='RegisterClassExA'#0;
szCreateWindowEx :='CreateWindowExA'#0;
szDefWindowProc :='DefWindowProcA'#0;
szSetFocus :='SetFocus'#0;
szGetWindowLong :='GetWindowLongA'#0;
szSetWindowLong :='SetWindowLongA'#0;
szGetDlgItemText :='GetDlgItemTextA'#0;
szGetSystemMenu :='GetSystemMenu'#0;
szAppendMenu :='AppendMenuA'#0;
szIsDialogMessage :='IsDialogMessage'#0;
szGetDlgItem :='GetDlgItem'#0;
szwsprintf :='wvsprintfA'#0; //wsprintfA
szSetWindowText :='SetWindowTextA'#0;
szCreateFontIndirect :='CreateFontIndirectA'#0;
szDeleteObject :='DeleteObject'#0;
_fnt.lfHeight:=12;
_fnt.lfWidth:=0;
_fnt.lfEscapement:=0;
_fnt.lfOrientation:=0;
_fnt.lfWeight:=FW_NORMAL;
_fnt.lfItalic:=0;
_fnt.lfUnderline:=0;
_fnt.lfStrikeOut:=0;
_fnt.lfCharSet:=DEFAULT_CHARSET;
_fnt.lfOutPrecision:=OUT_DEFAULT_PRECIS;
_fnt.lfClipPrecision:=CLIP_DEFAULT_PRECIS;
_fnt.lfQuality:=PROOF_QUALITY;
_fnt.lfPitchAndFamily:=DEFAULT_PITCH or FF_DONTCARE;
_fnt.lfFaceName:='細明體';
_szAppClass :='PEEncrypt'#0;
_szAppTitle :='PE Encrypt :: v1.0'#0;
_szMenuAbout :='&About PE Encrypt...'#0;
_szMsgAbout :='[ PE Encrypt ]'#13#10
+'Version: 1.0'#13#10#13#10
+'作者: Liwuyue'#13#10
+'郵箱: smokingroom@sina.com'#13#10
+'主頁: http://www.programmerlife.com'#0;
_szClassEdit :='Edit'#0;
_szClassStatic :='Static'#0;
_szClassButton :='Button'#0;
_szTitlePassword :='請輸入密碼:'#0;
_szOK :='確定(&O)'#0;
_szCancel :='取消(&C)'#0;
_szWrongPassword :='密碼不正確,請重新輸入!'#0;
_szTemplate :='--= 你還剩下 %d 次機會 =--'#0;
_nCount :=3;
end;
end;
//*********************************附加優段開始**********************************************
function AttachStart:DWORD;stdcall;
asm
CALL @@1
@@1:
POP EAX
SUB EAX, 5
end;
//附加段的處理模塊
procedure AttachProc;stdcall;
var
AttachData:PAttachData;
dwKernel32:DWORD;
dwNtHeaders:DWORD;
dwExportEntry:DWORD;
dwAddressOfNames:DWORD;
dwAddressOfNameOrdinals:DWORD;
dwAddressOfFunctions:DWORD;
dwNumberOfNames:DWORD;
RelativeID:DWORD;
msg:TagMSG;
I:DWORD;
aLeft,aTop:Integer;
EntryPoint:DWORD;
begin
//******查找Kernel32.dll的基地址
asm
MOV EAX, [ESP+48]
AND EAX, $FFFF0000
@@chk:
CMP DWORD PTR [EAX], $00905A4D
JE @@fnd
SUB EAX, $1000
JMP @@chk
@@fnd:
MOV dwKernel32, EAX
end;
AttachData:=Pointer(AttachStart-SizeOf(TAttachData));
dwNtHeaders:=dwKernel32+DWORD(PImageDosHeader(dwKernel32)._lfanew);
dwExportEntry:=dwKernel32+PImageNtHeaders(dwNtHeaders).OptionalHeader.DataDirectory[0].VirtualAddress;
dwAddressOfNames:=dwKernel32+DWORD(PImageExportDirectory(dwExportEntry).AddressOfNames);
dwAddressOfNameOrdinals:=dwKernel32+DWORD(PImageExportDirectory(dwExportEntry).AddressOfNameOrdinals);
dwAddressOfFunctions:=dwKernel32+DWORD(PImageExportDirectory(dwExportEntry).AddressOfFunctions);
dwNumberOfNames:=PImageExportDirectory(dwExportEntry).NumberOfNames;
//*******在Kernel32.dll裡面查找GetProcAddress函數的線性地址
for I:=0 to dwNumberOfNames-1 do
begin
if (PDWORD(dwKernel32+PDWORD(dwAddressOfNames+I*4)^)^=$50746547) //PteG --GetP
and (PDWORD(dwKernel32+PDWORD(dwAddressOfNames+I*4)^+4)^=$41636F72) //Acor --rocA
and (PDWORD(dwKernel32+PDWORD(dwAddressOfNames+I*4)^+8)^=$65726464) //erdd --ddre
and (PWORD(dwKernel32+PDWORD(dwAddressOfNames+I*4)^+12)^=$7373) then //ss --ss
begin
RelativeID:=PWORD(dwAddressOfNameOrdinals+I*2)^;
AttachData._GetProcAddress:=Pointer(dwKernel32+PDWORD(dwAddressOfFunctions+RelativeID*4)^);
Break;
end;
end;
with AttachData^ do
begin
_LoadLibrary :=_GetProcAddress(dwKernel32,szLoadLibrary);
_FreeLibrary :=_GetProcAddress(dwKernel32,szFreeLibrary);
_ExitProcess :=_GetProcAddress(dwKernel32,szExitProcess);
_GetModuleHandle :=_GetProcAddress(dwKernel32,szGetModuleHandle);
_lstrlen :=_GetProcAddress(dwKernel32,szlstrlen);
hLibUser32 :=_LoadLibrary(szLibUser32); //載入user32.dll
hLibGDI32 :=_LoadLibrary(szLibGDI32); //載入gdi32.dll
//***獲取user32.dll中的一些API
_GetMessage :=_GetProcAddress(hLibUser32,szGetMessage);
_TranslateMessage :=_GetProcAddress(hLibUser32,szTranslateMessage);
_DispatchMessage :=_GetProcAddress(hLibUser32,szDispatchMessage);
_GetSystemMetrics :=_GetProcAddress(hLibUser32,szGetSystemMetrics);
_PostMessage :=_GetProcAddress(hLibUser32,szPostMessage);
_SendMessage :=_GetProcAddress(hLibUser32,szSendMessage);
_ShowWindow :=_GetProcAddress(hLibUser32,szShowWindow);
_UpdateWindow :=_GetProcAddress(hLibUser32,szUpdateWindow);
_LoadCursor :=_GetProcAddress(hLibUser32,szLoadCursor);
_LoadIcon :=_GetProcAddress(hLibUser32,szLoadIcon);
_PostQuitMessage :=_GetProcAddress(hLibUser32,szPostQuitMessage);
_MessageBox :=_GetProcAddress(hLibUser32,szMessageBox);
_RegisterClassEx :=_GetProcAddress(hLibUser32,szRegisterClassEx);
_CreateWindowEx :=_GetProcAddress(hLibUser32,szCreateWindowEx);
_DefWindowProc :=_GetProcAddress(hLibUser32,szDefWindowProc);
_SetFocus :=_GetProcAddress(hLibUser32,szSetFocus);
_GetWindowLong :=_GetProcAddress(hLibUser32,szGetWindowLong);
_SetWindowLong :=_GetProcAddress(hLibUser32,szSetWindowLong);
_GetDlgItemText :=_GetProcAddress(hLibUser32,szGetDlgItemText);
_GetSystemMenu :=_GetProcAddress(hLibUser32,szGetSystemMenu);
_AppendMenu :=_GetProcAddress(hLibUser32,szAppendMenu);
_IsDialogMessage :=_GetProcAddress(hLibUser32,szIsDialogMessage);
_GetDlgItem :=_GetProcAddress(hLibUser32,szGetDlgItem);
_wsprintf :=_GetProcAddress(hLibUser32,szwsprintf);
_SetWindowText :=_GetProcAddress(hLibUser32,szSetWindowText);
//***獲取gdi32.dll中的兩個API
_CreateFontIndirect :=_GetProcAddress(hLibGDI32,szCreateFontIndirect);
_DeleteObject :=_GetProcAddress(hLibGDI32,szDeleteObject);
//******Win32 API操作:註冊窗口類及創建窗口實例
_wc.hInstance:=_GetModuleHandle(nil);
_wc.cbSize:=SizeOf(WNDCLASSEX);
_wc.style:=CS_HREDRAW or CS_VREDRAW;
//窗口過程,非常重要!!!
_wc.lpfnWndProc:=Pointer(DWORD(@AttachWindowProc)-DWORD(@AttachStart)+AttachStart);
_wc.hbrBackground:=COLOR_WINDOW;
_wc.lpszClassName:=_szAppClass;
_wc.hCursor:=_LoadCursor(0,IDC_ARROW);
_wc.hIcon:=_LoadIcon(0,IDI_WINLOGO);
_wc.hIconSm:=_wc.hIcon;
_RegisterClassEx(_wc);
aLeft:=(_GetSystemMetrics(SM_CXSCREEN)-dwWndAttachWidth) div 2;
aTop:=(_GetSystemMetrics(SM_CYSCREEN)-dwWndAttachHeight) div 2;
_hWndAttach:=_CreateWindowEx(hWndAttachExStyle,_szAppClass,_szAppTitle,hWndAttachStyle,aLeft,aTop,dwWndAttachWidth,dwWndAttachHeight,0,0,_wc.hInstance,nil);
_ShowWindow(_hWndAttach,SW_SHOW);
_UpdateWindow(_hWndAttach);
//******處理消息循環
while _GetMessage(msg,0,0,0) do
begin
if not _IsDialogMessage(_hWndAttach,msg) then
begin
_TranslateMessage(msg);
_DispatchMessage(msg);
end;
end;
_FreeLibrary(hLibGDI32);
_FreeLibrary(hLibUser32);
if _bCorrect=1 then
begin
EntryPoint:=_wc.hInstance+(_wc.hInstance-_ImageBase)+_EntryPoint; //============================!!!
asm
MOV EAX, EntryPoint
JMP EAX
end;
end;
_ExitProcess(0);
end;
end;
//附加段的消息循環
function AttachWindowProc(hwnd:HWND;uMsg:UINT;wParam:WPARAM;lParam:LPARAM):LRESULT;stdcall;
var
AttachData:PAttachData;
hSysMenu:HMENU;
TmpHwnd:Windows.HWND;
szPassword:array[0..MAX_PASSWORD_LENGTH-1] of Char;
begin
Result:=0;
AttachData:=Pointer(AttachStart-SizeOf(TAttachData));
with AttachData^ do
case uMsg of
WM_CREATE:
begin
//在系統菜單中添加"關於"項目
hSysMenu:=_GetSystemMenu(hwnd,False);
_AppendMenu(hSysMenu,MF_SEPARATOR,0,nil);
_AppendMenu(hSysMenu,MF_STRING,IDM_ATTACH_MENU_ABOUT,_szMenuAbout);
_hFont:=_CreateFontIndirect(_fnt);
//創建Static控件,顯示還可以輸入多少次密碼
_hWndChanceCount:=_CreateWindowEx(0,_szClassStatic,_szChanceCount,SS_CENTER or SS_CENTERIMAGE or WS_VISIBLE or WS_CHILD,
10,32,300,22,hwnd,0,_wc.hInstance,nil);
_SendMessage(_hWndChanceCount,WM_SETFONT,_hFont,0);
_wsprintf(_szChanceCount,_szTemplate,@_nCount);
_SetWindowText(_hWndChanceCount,_szChanceCount);
//創建Static控件,顯示"請輸入密碼:'
TmpHwnd:=_CreateWindowEx(0,_szClassStatic,_szTitlePassword,SS_RIGHT or SS_CENTERIMAGE or WS_VISIBLE or WS_CHILD,
5,10,80,22,hWnd,0,_wc.hInstance,nil);
_SendMessage(TmpHwnd,WM_SETFONT,_hFont,0);
//創建Edit控件,供用戶輸入密碼
TmpHwnd:=_CreateWindowEx(WS_EX_STATICEDGE,_szClassEdit,nil,ES_AUTOHSCROLL or ES_PASSWORD or WS_VISIBLE or WS_TABSTOP or WS_CHILD,
90,12,205,18,hWnd,0,_wc.hInstance,nil);
_SendMessage(TmpHwnd,EM_SETLIMITTEXT,MAX_PASSWORD_LENGTH,0);
_SetWindowLong(TmpHwnd,GWL_ID,IDC_EDIT_PASSWORD);
_SetFocus(TmpHwnd);
//創建Button控件,即"確定"按鈕
TmpHwnd:=_CreateWindowEx(0,_szClassButton,_szOK,BS_FLAT or BS_DEFPUSHBUTTON or WS_VISIBLE or WS_TABSTOP or WS_CHILD,
80,60,80,20,hWnd,0,_wc.hInstance,nil);
_SendMessage(TmpHwnd,WM_SETFONT,_hFont,0);
_SetWindowLong(TmpHwnd,GWL_ID,IDC_BUTTON_OK);
//創建Button控件,即"取消"按鈕
TmpHwnd:=_CreateWindowEx(0,_szClassButton,_szCancel,BS_FLAT or WS_VISIBLE or WS_TABSTOP or WS_CHILD,
180,60,80,20,hWnd,0,_wc.hInstance,nil);
_SendMessage(TmpHwnd,WM_SETFONT,_hFont,0);
_SetWindowLong(TmpHwnd,GWL_ID,IDC_BUTTON_CANCEL);
end;
WM_COMMAND:
begin
if LOWORD(wParam)=IDC_BUTTON_OK then
begin
_GetDlgItemText(hwnd,IDC_EDIT_PASSWORD,szPassword,MAX_PASSWORD_LENGTH);
if CalcCrc32(szPassword,_lstrlen(szPassword))=_dwPasswordCrc32 then
_bCorrect:=1;
if (_bCorrect=1) or (_nCount=1) then _PostMessage(hwnd,WM_CLOSE,0,0)
else begin
_MessageBox(hwnd,_szWrongPassword,_szAppTitle,MB_OK+MB_ICONERROR);
TmpHwnd:=_GetDlgItem(hwnd,IDC_EDIT_PASSWORD);
_SetFocus(TmpHwnd);
_SendMessage(hwnd,EM_SETSEL,0,-1);
_nCount:=_nCount-1;
_wsprintf(_szChanceCount,_szTemplate,@_nCount);
_SetWindowText(_hWndChanceCount,_szChanceCount);
end;
end else if LOWORD(wParam)=IDC_BUTTON_CANCEL then
_PostMessage(hwnd,WM_CLOSE,0,0)
else
Result:=_DefWindowProc(hwnd,uMsg,wParam,lParam);
end;
WM_SYSCOMMAND:
begin
if wParam=IDM_ATTACH_MENU_ABOUT then
_MessageBox(hwnd,_szMsgAbout,_szAppTitle,MB_OK+MB_ICONINFORMATION)
else
Result:=_DefWindowProc(hwnd,uMsg,wParam,lParam);
end;
WM_CLOSE:
begin
_DeleteObject(_hFont);
Result:=_DefWindowProc(hwnd,uMsg,wParam,lParam);
end;
WM_DESTROY:
begin
_PostQuitMessage(0);
end;
else
Result:=_DefWindowProc(hwnd,uMsg,wParam,lParam);
end;
end;
function CalcCrc32(lpSource:PChar; nLength:Integer):DWORD;stdcall;
var
Crc32Table:array[0..255] of DWORD;
I,J:Integer;
crc:DWORD;
begin
//初始化CRC32表
for I:=0 to 255 do
begin
crc:=I;
for J:=0 to 7 do
begin
if crc and 1 > 0 then
crc:=(crc shr 1) xor $EDB88320
else
crc:=crc shr 1;
end;
Crc32Table[I]:=crc;
end;
//計算CRC32值
Result:=8;
for I:=0 to nLength-1 do
Result := Crc32Table[Byte(Result xor DWORD(Ord(lpSource[I])))] xor ((Result shr 8) and $00FFFFFF);
Result:=not Result;
end;
procedure AttachEnd;stdcall;
begin
end;
//*********************************附加優段結束**********************************************
procedure Encrypt(Handle:HWND; LFileName:string;LPassword:string;LBackup:Boolean);
const
DlgCaption='PE Ecrypt v1.0';
var
hFile:THandle;
ImgDosHeader:IMAGE_DOS_HEADER;
ImgNtHeaders:IMAGE_NT_HEADERS;
ImgSectionHeader:IMAGE_SECTION_HEADER;
LPointerToRawData:DWORD;
LVirtualAddress:DWORD;
I:Integer;
BytesRead,BytesWrite:Cardinal;
AttachSize:DWORD;
begin
hFile:=CreateFile(PChar(LFileName),GENERIC_READ or GENERIC_WRITE,FILE_SHARE_READ or FILE_SHARE_WRITE,nil,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);
if hFile=INVALID_HANDLE_VALUE then
begin
MessageBox(Handle,'打開文件失敗!',DlgCaption,MB_ICONERROR+MB_OK);
Exit;
end;
try
ReadFile(hFile,ImgDosHeader,SizeOf(ImgDosHeader),BytesRead,nil);
if ImgDosHeader.e_magic<>IMAGE_DOS_SIGNATURE then
begin
MessageBox(Handle,'這不是一個有效的PE文件!',DlgCaption,MB_ICONERROR+MB_OK);
Exit;
end;
SetFilePointer(hFile,ImgDosHeader._lfanew,nil,FILE_BEGIN);
ReadFile(hFile,ImgNtHeaders,SizeOf(ImgNtHeaders),BytesRead,nil);
if ImgNtHeaders.Signature<>IMAGE_NT_SIGNATURE then
begin
MessageBox(Handle,'這不是一個有效的PE文件!',DlgCaption,MB_ICONERROR+MB_OK);
Exit;
end;
LPointerToRawData:=0;
LVirtualAddress:=0;
for I:=0 to ImgNtHeaders.FileHeader.NumberOfSections-1 do
begin
ReadFile(hFile,ImgSectionHeader,SizeOf(ImgSectionHeader),BytesRead,nil);
if PChar(@ImgSectionHeader.Name[0])='.LWY' then
begin
MessageBox(Handle,'呵呵, 您忘了嗎? 文件已經加密了!',DlgCaption,MB_ICONINFORMATION+MB_OK);
Exit;
end;
if LPointerToRawData 0 then
ImgSectionHeader.VirtualAddress:=(ImgSectionHeader.VirtualAddress div 4096 + 1) * 4096;
//******計算新節的PointerToRawData (為512的倍數)
if ImgSectionHeader.PointerToRawData mod 512 > 0 then
ImgSectionHeader.PointerToRawData:=(ImgSectionHeader.PointerToRawData div 512 + 1) * 512;
//******設置新節的Characteristics (code/data/execute/read/write/inited data/un-inited data)
ImgSectionHeader.Characteristics:=$E00000E0;
//******寫入新節信息
WriteFile(hFile,ImgSectionHeader,SizeOf(ImgSectionHeader),BytesWrite,nil);
//******修改入口地址,記得要先記錄原來的哦^_^
AttachData._EntryPoint:=ImgNtHeaders.OptionalHeader.AddressOfEntryPoint;
AttachData._ImageBase:=ImgNtHeaders.OptionalHeader.ImageBase;
ImgNtHeaders.OptionalHeader.AddressOfEntryPoint:=ImgSectionHeader.VirtualAddress
+SizeOf(TAttachData)
+DWORD(@AttachProc)-DWORD(@AttachStart);
//******修改鏡像大小
ImgNtHeaders.OptionalHeader.SizeOfImage:=ImgNtHeaders.OptionalHeader.SizeOfImage+AttachSize;
//******保存密碼
AttachData._dwPasswordCrc32:=CalcCrc32(PChar(LPassword),Length(LPassword));
//******修改節個數
Inc(ImgNtHeaders.FileHeader.NumberOfSections);
//******定位到IMAGE_NT_HEADERS
SetFilePointer(hFile,ImgDosHeader._lfanew,nil,FILE_BEGIN);
WriteFile(hFile,ImgNtHeaders,SizeOf(ImgNtHeaders),BytesWrite,nil);
//******定位到新節的起始偏移地址
SetFilePointer(hFile,ImgSectionHeader.PointerToRawData,nil,FILE_BEGIN);
//******寫入AttachData
WriteFile(hFile,AttachData,SizeOf(AttachData),BytesWrite,nil);
//******寫入代碼
WriteFile(hFile,PByte(@AttachStart)^,Integer(@AttachEnd)-Integer(@AttachStart),BytesWrite,nil);
MessageBox(Handle,'恭喜,加密成功!',DlgCaption,MB_OK+MB_ICONINFORMATION);
finally
CloseHandle(hFile);
end;
end;
initialization
Init_AttachData;;
finalization
end.