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Multiple instances of svchost.exe in task manager! is this normal?


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9 replies to this topic

#1 mistuhw00

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Posted 29 December 2009 - 09:33 PM

hey guys.
my computer as been slowing down greatly lately.
i've noticed that whenever i open my task manager, there are multiple entries of "svchost.exe".
right in this moment, i see 8 of them. however, some of them are placed in different user names.
there are:

3 in LOCAL SERVICE, mem usage average is about 175K.
2 in NETWORK SERVICE, mem usage average is about 1,800K.
3 in SYSTEM, mem usage ranging from 1,000K to 4,200K.

i don't know much about how computers work, so i need your help.
if i'm not providing enough information, please say so, and i'll be glad to elaborate.
any help is appreciated.
thanks for your time and effort.

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#2 Computer Pro

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Posted 29 December 2009 - 09:57 PM

Hello and welcome to Bleeping Computer. My name is Computer Pro and I will be helping you with your issues.

Please subscribe to your topic so that you will be notified as soon as I post a reply, instead of you having to check the topic all of the time. This will allow you to get an email notification when I reply.

To subscribe, go to your topic, and at the top right hand corner by your first post, click the Options button and then click Track this topic. Then bullet the immediate notification bubble. Finally, press submit.


Having multiple instances of svchost.exe is perfectly normal. As of right now, my machine has 7 of them running. But let's try to see if we can get rid of your slowness!

Lets take a look with Malwarebytes

Please download Malwarebytes' Anti-Malware from here:
Malwarebytes
Please rename the file BEFORE downloading to zztoy.exe instead of mbam-setup.exe

MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.

Double Click zztoy.exe to install the application.
* Make sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish.
* If an update is found, it will download and install the latest version.
* Once the program has loaded, select "Perform Full Scan", then click Scan.
* The scan may take some time to finish,so please be patient.
* When the scan is complete, click OK, then Show Results to view the results.
* Make sure that everything is checked, and click Remove Selected.
* When disinfection is completed, a log will open in Notepad and you may be prompted to Restart.(See Extra Note)
* The log is automatically saved by MBAM and can be viewed by clicking the Logs tab in MBAM.
* Copy&Paste the entire MBAM report (even if it does not find anything) in your next reply

Extra Note:
If MBAM encounters a file that is difficult to remove,you will be presented with 1 of 2 prompts,click OK to either and let MBAM proceed with the disinfection process, if asked to restart the computer, please do so immediately.


If Malwarebytes won't install or run

Some types of malware will disable MBAM and other security tools. If MBAM will not install, try renaming it. Right-click on the mbam-setup.exe file and change the .exe extension to .bat, .com, .pif, or .scr and then double-click on it to run.

If after installation, MBAM will not run, open the Malwarebytes' Anti-Malware folder in Program Files, right-click on mbam.exe and change the .exe as noted above. Then double-click on it to run.
Computer Pro

#3 mistuhw00

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Posted 30 December 2009 - 03:55 AM

here it is:

Malwarebytes' Anti-Malware 1.42
Database version: 3454
Windows 5.1.2600 Service Pack 3
Internet Explorer 8.0.6001.18702

12/30/2009 12:46:31 AM
mbam-log-2009-12-30 (00-46-31).txt

Scan type: Full Scan (C:\|)
Objects scanned: 177581
Time elapsed: 59 minute(s), 46 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: 0

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:
(No malicious items detected)

thanks for the fast response. by the way, as i was disabling my spybot S&D, i discovered a startup process named "ctfmon.exe". it was listed as a password-stealing trojan in the bleepingcomputer database. i adjusted the settings so that it would not start up automatically, but i see it running again in the task manager window. also, i will be unable to respond to your posts until 1/1/10. i apologize for any and all inconveniences this may have caused. thanks again.

#4 Computer Pro

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Posted 30 December 2009 - 03:01 PM

Ctfmon.exe can be related to Office XP. So I wouldnt worry. Next run SAS:

Please run ATF and SAS:

Note.. SAS doesn't open the registry hives for other user accounts on the system, so scans should be done from each user account.

Note 2: On Vista, "Windows Temp" is disabled. To empty "Windows Temp" ATF-Cleaner must be "Run as an Administrator".

From your regular user account..
Download Attribune's ATF Cleaner and then SUPERAntiSpyware, Free Home Edition

Save both to desktop ..
DO NOT run yet.
Open SUPER from icon and install and Update it
Under Scanner Options make sure the following are checked (leave all others unchecked):
Close browsers before scanning.
Scan for tracking cookies.
Terminate memory threats before quarantining.
Click the "Close" button to leave the control center screen and exit the program. DO NOT run yet.



Double-click ATF-Cleaner.exe to run the program.
Under Main "Select Files to Delete" choose: Select All.
Click the Empty Selected button.

If you use Firefox or Opera browser click that browser at the top and choose: Select All
Click the Empty Selected button.
If you would like to keep your saved passwords, please click No at the prompt.
Click Exit on the Main menu to close the program.

NOW Scan with SUPER
Open from the desktop icon or the program Files list
On the left, make sure you check C:\Fixed Drive.
Perform a Complete scan. After scan,Verify they are all checked.
Click OK on the summary screen to quarantine all found items.
If asked if you want to reboot, click "Yes" and reboot normally.

To retrieve the removal information after reboot, launch SUPERAntispyware again.
Click Preferences, then click the Statistics/Logs tab.
Under Scanner Logs, double-click SUPERAntiSpyware Scan Log.
If there are several logs, click the current dated log and press View log.
A text file will open in your default text editor.
Please copy and paste the Scan Log results in your next reply.
Click Close to exit the program.
Computer Pro

#5 mistuhw00

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Posted 01 January 2010 - 10:11 PM

ok, Computer Pro.
here it is. i was surprised to find that zcodec was a trojan, because i was told it was a video and audio codec app from a site that i thought was relatively reliable.


SUPERAntiSpyware Scan Log
http://www.superantispyware.com

Generated 01/01/2010 at 05:02 PM

Application Version : 4.32.1000

Core Rules Database Version : 4437
Trace Rules Database Version: 2263

Scan type : Complete Scan
Total Scan Time : 00:55:05

Memory items scanned : 455
Memory threats detected : 0
Registry items scanned : 5755
Registry threats detected : 1
File items scanned : 46198
File threats detected : 5

Adware.Agent/Gen-KR[WebComp]
HKU\S-1-5-21-1390067357-1715567821-682003330-1003\Software\Microsoft\Windows\CurrentVersion\Ext\Stats\{2D3BA117-A67B-4BE3-B692-A0F399E7EBC3}

Trojan.Zlob Downloader
C:\PROGRAM FILES\ZCODEC\AC3PACK\AC3CONFIG.EXE
C:\PROGRAM FILES\ZCODEC\AC3PACK\AC3CONFIG.EXE.MANIFEST
C:\PROGRAM FILES\ZCODEC\AC3PACK\SPDIF_TEST.EXE
C:\PROGRAM FILES\ZCODEC\ZUPDATE\ZCHK.EXE
C:\PROGRAM FILES\ZCODEC\ZUPDATE\ZUPDATE.EXE

#6 boopme

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Posted 01 January 2010 - 11:32 PM

Hello where did you download the Codec from as I would like to contact them.

How's the machine running now. We should do an Online scan also.
I'd like us to scan your machine with ESET OnlineScan
  • Hold down Control and click on the following link to open ESET OnlineScan in a new window.
    ESET OnlineScan
  • Click the Posted Image button.
  • For alternate browsers only: (Microsoft Internet Explorer users can skip these steps)
    • Click on Posted Image to download the ESET Smart Installer. Save it to your desktop.
    • Double click on the Posted Image icon on your desktop.
  • Check Posted Image
  • Click the Posted Image button.
  • Accept any security warnings from your browser.
  • Check Posted Image
  • Push the Start button.
  • ESET will then download updates for itself, install itself, and begin scanning your computer. Please be patient as this can take some time.
  • When the scan completes, push Posted Image
  • Push Posted Image, and save the file to your desktop using a unique name, such as ESETScan. Include the contents of this report in your next reply.
  • Push the Posted Image button.
  • Push Posted Image

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#7 mistuhw00

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Posted 02 January 2010 - 05:31 AM

here's the log from the eset online scan.

C:\Documents and Settings\All Users\Application Data\Spybot - Search & Destroy\Recovery\WebCompassSearchbar26.zip Win32/Bagle.gen.zip worm cleaned by deleting - quarantined

regarding the codec, i downloaded it from kongdisk.com, under the "necessary utilities" section. the site is in korean, so i hope you don't mind.

#8 boopme

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Posted 02 January 2010 - 11:07 AM

No problem I want get the file examined from them. How is it running now?
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#9 mistuhw00

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Posted 02 January 2010 - 12:11 PM

there is a noticeable change in my computer's response time after the several scans.
but still, it's not fast as i expected it to be. (maybe i'm expecting too much?)

oh, and another thing. i had zcodec on my computer for several months, and it did not significantly affect the computer's performance until recently. just saying.

#10 boopme

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Posted 02 January 2010 - 05:38 PM

The Codec may not have been infected, perhaps just an install file loaded with it.
The speed may be several things. So here's a link to review..
Slow Computer/browser? Check Here First; It May Not Be Malware
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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