瑞星卡卡安全论坛

首页 » 技术交流区 » 反病毒/反流氓软件论坛 » 跳出不明网页。现将扫描文件贴上，麻烦谢班主赐教
ahxhcz - 2006-10-11 20:59:00
2006-10-11,20:46:47

System Repair Engineer 2.0.21.505 (2.0 RC 2)
Smallfrogs (http://www.KZTechs.com)

Windows XP Professional Service Pack 2 (Build 2600)
- 管理权限用户 - 完整功能

以下内容被选中：
    所有的启动项目（包括注册表、启动文件夹、服务等）
    浏览器加载项
    正在运行的进程（包括进程模块信息）
    文件关联


启动项目
注册表
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
    <ctfmon.exe><C:\WINDOWS\system32\ctfmon.exe>  [Microsoft Corporation]
[HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows]
    <load><>  []
    <run><>  []
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run]
    <IMJPMIG8.1><"C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32>  [Microsoft Corporation]
    <PHIME2002ASync><rem rem C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /SYNC>  [Microsoft Corporation]
    <PHIME2002A><rem C:\WINDOWS\system32\IME\TINTLGNT\TINTSETP.EXE /IMEName>  [Microsoft Corporation]
    <ccApp><"C:\Program Files\Common Files\Symantec Shared\ccApp.exe">  [Symantec Corporation]
    <YLive.exe><rem C:\PROGRA~1\Yahoo!\ASSIST~1\YLive.exe>  [Yahoo! China]
    <Symantec NetDriver Monitor><rem C:\PROGRA~1\SYMNET~1\SNDMon.exe /Consumer>  [Symantec Corporation]
    <yassistse><; "C:\PROGRA~1\Yahoo!\Assistant\yassistse.exe">  [Yahoo! China]
    <StormCodec_Helper><"C:\暴风\Storm Codec\StormSet.exe" /S /opti>  []
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
    <shell><Explorer.exe>  [Microsoft Corporation]
    <Userinit><C:\WINDOWS\system32\userinit.exe,>  [Microsoft Corporation]
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Windows]
    <AppInit_DLLs><>  []
[HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
    <UIHost><logonui.exe>  [Microsoft Corporation]

==================================
启动文件夹
服务
[Symantec Event Manager / ccEvtMgr]
  <"C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe"><Symantec Corporation>
[Symantec Password Validation / ccPwdSvc]
  <"C:\Program Files\Common Files\Symantec Shared\ccPwdSvc.exe"><Symantec Corporation>
[Symantec Settings Manager / ccSetMgr]
  <"C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe"><Symantec Corporation>
[Norton AntiVirus Auto Protect Service / navapsvc]
  <"D:\Program Files\Norton AntiVirus\navapsvc.exe"><Symantec Corporation>
[SAVScan / SAVScan]
  <"D:\Program Files\Norton AntiVirus\SAVScan.exe"><Symantec Corporation>
[ScriptBlocking Service / SBService]
  <C:\PROGRA~1\COMMON~1\SYMANT~1\SCRIPT~1\SBServ.exe><Symantec Corporation>
[Symantec Network Drivers Service / SNDSrvc]
  <"C:\Program Files\Common Files\Symantec Shared\SNDSrvc.exe"><Symantec Corporation>
[Standard Br Service / stdsverex]
  <C:\WINDOWS\system32\stdup.exe -s><>
[SymWMI Service / SymWSC]
  <"C:\Program Files\Common Files\Symantec Shared\Security Center\SymWSC.exe"><Symantec Corporation>

==================================
浏览器加载项
[酷热影音]
  {7D73FF86-05F1-39ed-C850-A423120EC338} <www.kuree.com/index.htm?id=00011001, N/A>
[QQIEFloatBarCfgCmd Class]
  {DEDEB80D-FA35-45d9-9460-4983E5A8AFE6} <C:\Program Files\Tencent\QQ\QQIEHelper.dll, 深圳市腾讯计算机系统有限公司>
[Messenger]
  {FB5F1910-F110-11d2-BB9E-00C04F795683} <C:\Program Files\Messenger\msmsgs.exe, Microsoft Corporation>
[Norton AntiVirus]
  {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} <D:\Program Files\Norton AntiVirus\NavShExt.dll, N/A>
[Windows Media Player]
  {22D6F312-B0F6-11D0-94AB-0080C74C7E95} <C:\WINDOWS\system32\wmpdxm.dll, Microsoft Corporation>
[HTML Document]
  {25336920-03F9-11CF-8FD0-00AA00686F13} <%SystemRoot%\system32\mshtml.dll, N/A>
[DHTML Edit Control Safe for Scripting for IE5]
  {2D360201-FFF5-11D1-8D03-00A0C959BC0A} <C:\Program Files\Common Files\Microsoft Shared\Triedit\dhtmled.ocx, Microsoft Corporation>
[Norton AntiVirus]
  {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} <D:\Program Files\Norton AntiVirus\NavShExt.dll, N/A>
[XML Document]
  {48123BC4-99D9-11D1-A6B3-00C04FD91555} <%SystemRoot%\system32\msxml3.dll, N/A>
[QQBrowserHelperObject Class]
  {54EBD53A-9BC1-480B-966A-843A333CA162} <C:\Program Files\Tencent\QQ\QQIEHelper.dll, 深圳市腾讯计算机系统有限公司>
[Windows Media Player]
  {6BF52A52-394A-11D3-B153-00C04F79FAA6} <C:\WINDOWS\system32\wmp.dll, Microsoft Corporation>
[Microsoft Web 浏览器]
  {8856F961-340A-11D0-A96B-00C04FD705A2} <C:\WINDOWS\system32\shdocvw.dll, Microsoft Corporation>
[Thunder Browser Helper]
  {889D2FEB-5411-4565-8998-1DD2C5261283} <C:\Program Files\Thunder Network\Thunder\ComDlls\XunLeiBHO_001.dll, N/A>
[SearchAssistantOC]
  {B45FF030-4447-11D2-85DE-00C04FA35C89} <%SystemRoot%\system32\shdocvw.dll, N/A>
[RDS.DataSpace]
  {BD96C556-65A3-11D0-983A-00C04FC29E36} <C:\Program Files\Common Files\System\msadc\msadco.dll, Microsoft Corporation>
[CNavExtBho Class]
  {BDF3E430-B101-42AD-A544-FADC6B084872} <D:\Program Files\Norton AntiVirus\NavShExt.dll, N/A>
[AUDIO__X_MS_WMA Moniker Class]
  {CD3AFA84-B84F-48F0-9393-7EDC34128127} <C:\WINDOWS\system32\wmp.dll, Microsoft Corporation>
[RealPlayer G2 Control]
  {CFCDAA03-8BE4-11CF-B84B-0020AFBBCCFA} <C:\WINDOWS\system32\rmoc3260.dll, RealNetworks, Inc.>
[Shockwave Flash Object]
  {D27CDB6E-AE6D-11CF-96B8-444553540000} <C:\WINDOWS\system32\Macromed\Flash\Flash9.ocx, Adobe Systems, Inc.>
[&使用迅雷下载]
  <C:\Program Files\Thunder Network\Thunder\Program\GetUrl.htm, N/A>
[&使用迅雷下载全部链接]
  <C:\Program Files\Thunder Network\Thunder\Program\GetAllUrl.htm, N/A>
[上传到QQ网络硬盘]
  <C:\Program Files\Tencent\QQ\AddToNetDisk.htm, N/A>
[添加到QQ自定义面板]
  <C:\Program Files\Tencent\QQ\AddPanel.htm, N/A>
[添加到QQ表情]
  <C:\Program Files\Tencent\QQ\AddEmotion.htm, N/A>
[用QQ彩信发送该图片]
  <C:\Program Files\Tencent\QQ\SendMMS.htm, N/A>
ahxhcz - 2006-10-11 21:01:00
正在运行的进程
[PID: 440][\SystemRoot\System32\smss.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 488][\??\C:\WINDOWS\system32\csrss.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 512][\??\C:\WINDOWS\system32\winlogon.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 556][C:\WINDOWS\system32\services.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 568][C:\WINDOWS\system32\lsass.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 724][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 784][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 884][C:\WINDOWS\System32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 960][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1036][C:\WINDOWS\system32\svchost.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1132][C:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe]  <Symantec Corporation><2.1.10.2>
    [C:\Program Files\Common Files\Symantec Shared\ccVrTrst.dll]  <Symantec Corporation><2.1.10.2>
[PID: 1180][C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe]  <Symantec Corporation><2.1.10.2>
    [C:\Program Files\Common Files\Symantec Shared\ccVrTrst.dll]  <Symantec Corporation><2.1.10.2>
    [C:\PROGRA~1\COMMON~1\SYMANT~1\CCSETEVT.DLL]  <Symantec Corporation><2.1.10.2>
    [D:\PROGRA~1\NORTON~1\NAVEVENT.DLL]  <Symantec Corporation><10.00.13>
[PID: 1552][C:\WINDOWS\system32\spoolsv.exe]  <Microsoft Corporation><5.1.2600.2696 (xpsp_sp2_gdr.050610-1519)>
[PID: 1680][D:\Program Files\Norton AntiVirus\navapsvc.exe]  <Symantec Corporation><10.00.2>
    [D:\Program Files\Norton AntiVirus\SAVRT32.DLL]  <Symantec Corporation><    >
    [C:\Program Files\Common Files\Symantec Shared\ccVrTrst.dll]  <Symantec Corporation><2.1.10.2>
[PID: 1860][D:\Program Files\Norton AntiVirus\SAVScan.exe]  <Symantec Corporation><    >
    [D:\Program Files\Norton AntiVirus\SAVRT32.DLL]  <Symantec Corporation><    >
    [C:\Program Files\Common Files\Symantec Shared\ccScan.dll]  <Symantec Corporation><2.1.10.2>
    [C:\Program Files\Common Files\Symantec Shared\ecmldr32.DLL]  <Symantec Corporation><51.2.0.12>
    [C:\PROGRA~1\COMMON~1\SYMANT~1\VIRUSD~1\20061004.009\ecmsvr32.dll]  <Symantec Corporation><61.3.0.18>
    [C:\PROGRA~1\COMMON~1\SYMANT~1\VIRUSD~1\20061004.009\NAVEX32a.DLL]  <Symantec Corporation><20061.3.0.12>
    [C:\PROGRA~1\COMMON~1\SYMANT~1\VIRUSD~1\20061004.009\NAVENG32.DLL]  <Symantec Corporation><20061.3.0.12>
    [D:\Program Files\Norton AntiVirus\NAVAP32.DLL]  <Symantec Corporation><    >
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\DECSDK.DLL]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2ID.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2Zip.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2SS.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2GZIP.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2CAB.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2LHA.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2RAR.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2ARJ.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2TNEF.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2LZ.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2AMG.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2TAR.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2RTF.dll]  <Symantec Corporation><3.02.14.08>
    [C:\Program Files\Common Files\Symantec Shared\Decomposers\Dec2Text.dll]  <Symantec Corporation><3.02.14.08>
[PID: 1916][C:\WINDOWS\system32\stdup.exe]  < ><4, 0, 0, 1>
    [C:\WINDOWS\system32\albus.dll]  <Albus><1, 0, 0, 3>
    [C:\WINDOWS\system32\stdagent.dll]  <MS Stdup><1, 0, 0, 3>
    [C:\WINDOWS\system32\stdplay.dll]  < ><1, 0, 0, 3>
    [C:\WINDOWS\system32\stdvote.dll]  < ><1, 0, 0, 3>
[PID: 176][C:\Program Files\Common Files\Symantec Shared\Security Center\SymWSC.exe]  <Symantec Corporation><2005.1.2.20>
    [C:\Program Files\Common Files\Symantec Shared\ccVrTrst.dll]  <Symantec Corporation><2.1.10.2>
    [C:\Program Files\Common Files\Symantec Shared\Security Center\WSCHlpr.dll]  <Symantec Corporation><2005.1.2.20>
    [C:\Program Files\Common Files\Symantec Shared\Security Center\sscnav.dll]  <Symantec Corporation><2005.1.2.20>
    [C:\Program Files\Common Files\Symantec Shared\Security Center\sscnis7.dll]  <Symantec Corporation><2005.1.2.20>
    [C:\Program Files\Common Files\Symantec Shared\Security Center\sscnis56.dll]  <Symantec Corporation><2005.1.2.20>
    [D:\Program Files\Norton AntiVirus\NAVAPSCR.dll]  <Symantec Corporation><10.00.13>
    [D:\Program Files\Norton AntiVirus\SAVRT32.DLL]  <Symantec Corporation><    >
    [D:\Program Files\Norton AntiVirus\NAVError.dll]  <Symantec Corporation><10.00.13>
    [D:\PROGRA~1\NORTON~1\NAVOpts.dll]  <Symantec Corporation><10.00.13>
    [D:\PROGRA~1\NORTON~1\N32Exclu.dll]  <Symantec Corporation><10.00.13>
    [D:\PROGRA~1\NORTON~1\S32NAVO.DLL]  <Symantec Corporation><5.3.0.182>
    [C:\Program Files\Symantec\LiveUpdate\NetDetectController.DLL]  <Symantec Corporation><1.90.15.0>
[PID: 852][C:\WINDOWS\System32\alg.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
[PID: 1104][C:\WINDOWS\system32\wuauclt.exe]  <Microsoft Corporation><5.8.0.2469 built by: lab01_n(wmbla)>
[PID: 2024][C:\WINDOWS\Explorer.EXE]  <Microsoft Corporation><6.00.2900.2180 (xpsp_sp2_rtm.040803-2158)>
    [C:\WINDOWS\system32\stdagent.dll]  <MS Stdup><1, 0, 0, 3>
    [C:\WINDOWS\system32\stdplay.dll]  < ><1, 0, 0, 3>
    [C:\Program Files\WinRAR\rarext.dll]  <N/A><N/A>
    [C:\PROGRA~1\3721\ske\contmenu.dll]  <N/A><N/A>
[PID: 1804][C:\Program Files\Common Files\Symantec Shared\ccApp.exe]  <Symantec Corporation><2.1.10.2>
    [C:\WINDOWS\system32\stdagent.dll]  <MS Stdup><1, 0, 0, 3>
    [C:\WINDOWS\system32\stdplay.dll]  < ><1, 0, 0, 3>
    [C:\Program Files\Symantec\LiveUpdate\ProductRegCom.DLL]  <Symantec Corporation><1.90.15.0>
    [C:\Program Files\Symantec\LiveUpdate\LuComServerPS.DLL]  <Symantec Corporation><1.90.15.0>
    [C:\Program Files\Common Files\Symantec Shared\ccVrTrst.dll]  <Symantec Corporation><2.1.10.2>
    [C:\PROGRA~1\COMMON~1\SYMANT~1\CCALERT.DLL]  <Symantec Corporation><2.1.10.2>
    [C:\PROGRA~1\COMMON~1\SYMANT~1\CCEMLPXY.DLL]  <Symantec Corporation><2.1.10.2>
    [C:\WINDOWS\system32\SYMREDIR.dll]  <Symantec Corporation><5.5.1.6>
    [D:\PROGRA~1\NORTON~1\CCIMSCAN.DLL]  <Symantec Corporation><10.0.2.610>
    [D:\PROGRA~1\NORTON~1\DEFALERT.DLL]  <Symantec Corporation><10.00.13>
    [D:\PROGRA~1\NORTON~1\NAVAPW32.DLL]  <Symantec Corporation><10.00.13>
    [D:\PROGRA~1\NORTON~1\apwutil.dll]  <Symantec Corporation><10.00.13>
    [D:\PROGRA~1\NORTON~1\SAVRT32.DLL]  <Symantec Corporation><    >
    [C:\Program Files\Common Files\Symantec Shared\ccSetEvt.dll]  <Symantec Corporation><2.1.10.2>
    [D:\Program Files\Norton AntiVirus\NAVOPTRF.DLL]  <Symantec Corporation><10.00.2>
    [D:\Program Files\Norton AntiVirus\apwcmdnt.dll]  <Symantec Corporation><10.00.13>
    [C:\Program Files\Common Files\Symantec Shared\ccProSub.dll]  <Symantec Corporation><2.1.10.2>
    [D:\Program Files\Norton AntiVirus\NavEmail.dll]  <Symantec Corporation><10.0.2.610>
    [D:\PROGRA~1\NORTON~1\NAVOpts.dll]  <Symantec Corporation><10.00.13>
    [D:\PROGRA~1\NORTON~1\N32Exclu.dll]  <Symantec Corporation><10.00.13>
    [D:\PROGRA~1\NORTON~1\S32NAVO.DLL]  <Symantec Corporation><5.3.0.182>
    [D:\Program Files\Norton AntiVirus\NAVError.dll]  <Symantec Corporation><10.00.13>
    [D:\Program Files\Norton AntiVirus\NAVAPSCR.dll]  <Symantec Corporation><10.00.13>
[PID: 1292][C:\WINDOWS\system32\ctfmon.exe]  <Microsoft Corporation><5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)>
    [C:\WINDOWS\system32\stdagent.dll]  <MS Stdup><1, 0, 0, 3>
    [C:\WINDOWS\system32\stdplay.dll]  < ><1, 0, 0, 3>
[PID: 2752][C:\Program Files\Internet Explorer\iexplore.exe]  <Microsoft Corporation><6.00.2900.2180 (xpsp_sp2_rtm.040803-2158)>
    [C:\WINDOWS\system32\stdagent.dll]  <MS Stdup><1, 0, 0, 3>
    [C:\WINDOWS\system32\stdplay.dll]  < ><1, 0, 0, 3>
    [C:\Program Files\Common Files\Symantec Shared\Script Blocking\scrauth.dll]  <Symantec Corporation><1, 1, 1, 131>
    [C:\Program Files\Common Files\Symantec Shared\Script Blocking\ScrBlock.dll]  <Symantec Corporation><1, 1, 1, 131>
    [C:\WINDOWS\system32\Macromed\Flash\Flash9.ocx]  <Adobe Systems, Inc.><9,0,7,0>
[PID: 2192][C:\Documents and Settings\zgf\My Documents\反病毒\System Repair Engineer\SREng.exe]  <Smallfrogs Studio><2.0.21.505>
    [C:\WINDOWS\system32\stdagent.dll]  <MS Stdup><1, 0, 0, 3>
    [C:\WINDOWS\system32\stdplay.dll]  < ><1, 0, 0, 3>

==================================
文件关联
.TXT  OK. [%SystemRoot%\system32\NOTEPAD.EXE %1]
.EXE  OK. ["%1" %*]
.COM  OK. ["%1" %*]
.PIF  OK. ["%1" %*]
.REG  OK. [regedit.exe "%1"]
.BAT  OK. ["%1" %*]
.SCR  OK. ["%1" /S]
.CHM  OK. ["C:\WINDOWS\hh.exe" %1]
.HLP  OK. [%SystemRoot%\System32\winhlp32.exe %1]
.INI  OK. [%SystemRoot%\System32\NOTEPAD.EXE %1]
.INF  OK. [%SystemRoot%\System32\NOTEPAD.EXE %1]
.VBS  OK. [%SystemRoot%\System32\WScript.exe "%1" %*]
.JS  OK. [%SystemRoot%\System32\WScript.exe "%1" %*]
.LNK  OK. [{00021401-0000-0000-C000-000000000046}]

==================================
Winsock 提供者

==================================
我无邪 - 2006-10-11 21:19:00
你的扫描软件版本不行，要下载新的，一会你这样修复后删除你的扫描软件。
打开System Repair Engineer（也就是你的扫描日志软件SREng.exe），点“启动项目，服务，点“Win32服务应用程序”勾选“隐藏微软服务”选中病毒服务Standard Br Service，选择“删除服务”点“设置”选择“否”
重启后删除
C:\WINDOWS\system32\stdup.exe
请下载 System Repair Engineer，使用“智能扫描”，按下“扫描”按钮进行扫描，扫描完成后按下“保存报告”按钮保存报告日志文件（SREng.LOG），把保存的报告日志文件内容复制-粘贴上来
下载网址
http://www.kztechs.com/sreng/sreng2.zip
http://forum.ikaka.com/topic.asp?board=67&artid=5188931
日志一次粘不完，分次粘完，请不要修改。
1
查看完整版本: 跳出不明网页。现将扫描文件贴上，麻烦谢班主赐教
© 2000 - 2026 Rising Corp. Ltd.