SvcHost 占用了 100% 的 CPU。它似乎是 DcomLaunch 或 TermService - 病毒？

Question

所以我的SvcHost突然占用了我的 CPU 的 100%，我想弄清楚哪个服务对此负责。有什么方法可以区分在单个 SvcHost 中运行的多个服务生成的负载吗？

我运行了病毒扫描，结果很干净，我的工具又旧又过时，所以什么也没找到。

我尝试单步执行这些服务，一个一个地停止它们，但我找不到罪魁祸首（请注意，某些服务也会自动重新启动，我不想禁用它们）。

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更新：我昨晚使用了Process Explorer，但在违规的 SvcHost 中有很多服务，其中一些服务无法停止。今天，我再次检查了 Heavyd 的建议并很幸运，因为今天只有两个服务在有问题的 SvcHost 中。

DcomLaunch - DCOM 服务器进程启动器

TermService - 终端服务

两者都不可阻挡。我是最新的 Windows 更新。尽管昨晚没有任何结果，但仍要运行另一次病毒扫描来检查它。也许是时候重新开始了（这个安装是从 2004 年的某个时候开始的）。

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更新：绝对是病毒。在上次重新启动后，CPU 使用率下降了，但我在启动时收到了一些奇怪的“安装了安全软件”的消息，奇怪的名称正在运行的进程（例如，555573478785.exe），以及HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run昨晚没有添加的可疑密钥。

Symantec AntiVirus Corporate 8.1.0.825 提出了一些警告，但似乎并没有捕捉到所有内容:-(

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Malwarebytes 的反恶意软件结果：

Malwarebytes' Anti-Malware 1.44
Database version: 3763
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

2/19/2010 12:12:58 PM
mbam-log-2010-02-19 (12-12-58).txt

Scan type: Full Scan (C:\|D:\|)
Objects scanned: 290960
Time elapsed: 1 hour(s), 23 minute(s), 54 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 1
Registry Keys Infected: 25
Registry Values Infected: 1
Registry Data Items Infected: 1
Folders Infected: 1
Files Infected: 6

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
C:\WINDOWS\kbabjtm.dll (Trojan.Hiloti) -> Delete on reboot.

Registry Keys Infected:
HKEY_CLASSES_ROOT\Interface\{2e9937fc-cf2f-4f56-af54-5a6a3dd375cc} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{741de825-a6f0-4497-9aa6-8023cf9b0fff} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{cf54be1c-9359-4395-8533-1657cf209cfe} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\CLSID\{147a976f-eee1-4377-8ea7-4716e4cdd239} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Typelib\{d518921a-4a03-425e-9873-b9a71756821e} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{56256a51-b582-467e-b8d4-7786eda79ae0} (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{00a6faf1-072e-44cf-8957-5838f569a31d} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{07b18ea1-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{07b18ea9-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{07b18eab-a523-4961-b6bb-170de4475cca} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{1d4db7d2-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{25560540-9571-4d7b-9389-0f166788785a} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{3dc201fb-e9c9-499c-a11f-23c360d7c3f8} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{63d0ed2c-b45b-4458-8b3b-60c69bbbd83c} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Stats\{9ff05104-b030-46fc-94b8-81276e4e27df} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{1d4db7d2-6ec9-47a3-bd87-1e41684e07bb} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{59c7fc09-1c83-4648-b3e6-003d2bbc7481} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{68af847f-6e91-45dd-9b68-d6a12c30e5d7} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{9170b96c-28d4-4626-8358-27e6caeef907} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{d1a71fa0-ff48-48dd-9b6d-7a13a3e42127} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{ddb1968e-ead6-40fd-8dae-ff14757f60c7} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{f138d901-86f0-4383-99b6-9cdd406036da} (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\SearchScopes\{56256a51-b582-467e-b8d4-7786eda79ae0} (Trojan.Vundo) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Low Rights\RunDll32Policy\f3ScrCtr.dll (Adware.MyWebSearch) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Multimedia\WMPlayer\Schemes\f3pss (Adware.MyWebSearch) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\MenuExt\&Search\(default) (Adware.Hotbar) -> Quarantined and deleted successfully.

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\LSA\Notification Packages (Trojan.Vundo.H) -> Data: kbabjtm.dll  -> Delete on reboot.

Folders Infected:
C:\Documents and Settings\All Users\Application Data\55533526 (Rogue.Multiple) -> Quarantined and deleted successfully.

Files Infected:
C:\WINDOWS\kbabjtm.dll (Trojan.Vundo.H) -> Delete on reboot.
C:\WINDOWS\Temp\~TM17.tmp (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\WINDOWS\Temp\~TM466.tmp (Trojan.Hiloti) -> Quarantined and deleted successfully.
C:\Documents and Settings\mach\Local Settings\Temporary Internet Files\Content.IE5\2WE7TOVW\load[1].exe (Malware.Packer.Gen) -> Quarantined and deleted successfully.
C:\Documents and Settings\mach\Application Data\avdrn.dat (Malware.Trace) -> Quarantined and deleted successfully.
C:\Documents and Settings\mach\Start Menu\Programs\Startup\monnid32.exe (Trojan.Bredolab) -> Delete on reboot.

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第二次扫描结果：

Malwarebytes' Anti-Malware 1.44
Database version: 3763
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

2/19/2010 1:54:07 PM
mbam-log-2010-02-19 (13-54-07).txt

Scan type: Full Scan (C:\|D:\|)
Objects scanned: 290753
Time elapsed: 1 hour(s), 18 minute(s), 34 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 0
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 2

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\System Volume Information\_restore{0D9A148D-2E7E-411F-8807-407114206A75}\RP2138\A0129104.dll (Trojan.Hiloti) -> Quarantined and deleted successfully.
C:\System Volume Information\_restore{0D9A148D-2E7E-411F-8807-407114206A75}\RP2138\A0129105.exe (Malware.Packer.Gen) -> Quarantined and deleted successfully.

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更新：经过几次扫描后，我的 PC 似乎不再有病毒。

谢谢大家！

Answer 1

我建议抓住Microsoft/SysInternals Process Explorer。使用进程浏览器，您可以打开特定的 svchost 进程并查看正在从该进程运行哪些服务。然后，您可以使用流程详细信息中的“服务”选项卡来停止个别服务以找到罪魁祸首。

Answer 2

只要多个服务在单个 svchost.exe 中运行，您就无法区分负载。但是有一种简单而安全的方法可以将它们拆分到单独的 svchost.exe 中：

SC Config Servicename Type= own

在命令行窗口中执行此操作或将其放入 BAT/CMD 脚本中。使其工作的要求是：

• SC执行命令时的管理权限。
• 重新启动计算机。之前不会生效。
• “=”后的空格。

可以通过以下方式恢复原始状态：

SC Config Servicename Type= share

示例：使Windows Management Instrumentation在单独的 SVCHOST.EXE 中运行：

SC Config winmgmt Type= own

我在 Windows XP 系统上使用了以下序列。它可以直接粘贴到命令行窗口中。

rem  1. "Automatic Updates"
SC Config wuauserv Type= own

rem  2. "COM+ Event System"
SC Config EventSystem Type= own

rem  3. "Computer Browser"
SC Config Browser Type= own

rem  4. "Cryptographic Services"
SC Config CryptSvc Type= own

rem  5. "Distributed Link Tracking"
SC Config TrkWks Type= own

rem  6. "Help and Support"
SC Config helpsvc Type= own

rem  7. "Logical Disk Manager"
SC Config dmserver Type= own

rem  8. "Network Connections"
SC Config Netman Type= own

rem  9. "Network Location Awareness"
SC Config NLA Type= own

rem 10. "Remote Access Connection Manager"
SC Config RasMan Type= own

rem 11. "Secondary Logon"
SC Config seclogon Type= own

rem 12. "Server"
SC Config lanmanserver Type= own

rem 13. "Shell Hardware Detection"
SC Config ShellHWDetection Type= own

rem 14. "System Event Notification"
SC Config SENS Type= own

rem 15. "System Restore Service"
SC Config srservice Type= own

rem 16. "Task Scheduler"
SC Config Schedule Type= own

rem 17. "Telephony"
SC Config TapiSrv Type= own

rem 18. "Terminal Services"
SC Config TermService Type= own

rem 19. "Themes"
SC Config Themes Type= own

rem 20. "Windows Audio"
SC Config AudioSrv Type= own

rem 21. "Windows Firewall/Internet Connection Sharing (ICS)"
SC Config SharedAccess Type= own

rem 22. "Windows Management Instrumentation"
SC Config winmgmt Type= own

rem 23. "Wireless Configuration"
SC Config WZCSVC Type= own

rem 24. "Workstation"
SC Config lanmanworkstation Type= own

rem End.