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Computer spikes to 100% - help!


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#1 JP Smit

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Posted 18 February 2009 - 11:46 AM

I'm running windows 2000 on my desktop. Every couple of minutes the CPU usage spikes to 100% and then drops again. Everything just stops till it gets back to normal settings.

Here is what I have done this morning

Run Superantispyware - a bit of adware is all
Run ATF cleaner.

I use Ccleaner regularly
I have Avast Antivirus.

The only thing new that I can think that I have done is added a wireless mouse (Kensington) about 2 months ago - and I have no recollection of whether this was happening before or after.

any suggestions?

thanks all
JP

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#2 rigel

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Posted 18 February 2009 - 07:12 PM

Try Process Explorer. Process explorer is like Windows task manager on steriods. It monitors the vital signs of your computer. When you experience a spike, look at process explorer to see what is causing it. Report back with a file name and we can go from there.

We can also do a diagnostic run with malwarebytes...

The process of cleaning your computer may require temporarily disabliling some security programs. If you are using SpyBot Search and Destroy, please refer to Note 2 at the bottom of this page.

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself.
  • Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply and exit MBAM.
Note:
-- If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Regardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.

Note 2:
-- MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes (like Spybot's Teatimer), they may interfere with the fix or alert you after scanning with MBAM. Please disable such programs until disinfection is complete or permit them to allow the changes. To disable these programs, please view this topic: How To Temporarily Disable Your Anti-virus, Firewall And Anti-malware Programs

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#3 JP Smit

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Posted 23 February 2009 - 12:00 PM

Ok, first off, thanks so very much for your help and advice so far.

The story continues.

1. I did run Malwarebytes, here is the report

Malwarebytes' Anti-Malware 1.34
Database version: 1795
Windows 5.0.2195 Service Pack 4

2/23/2009 11:53:44 AM
mbam-log-2009-02-23 (11-53-44).txt

Scan type: Quick Scan
Objects scanned: 59035
Time elapsed: 18 minute(s), 50 second(s)

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

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_CLASSES_ROOT\Interface\{04a38f6b-006f-4247-ba4c-02a139d5531c} (Adware.Minibug) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Interface\{450b9e4d-4014-4de3-b34e-014a81468293} (Trojan.Downloader) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Typelib\{3c2d2a1e-031f-4397-9614-87c932a848e0} (Adware.Minibug) -> Quarantined and deleted successfully.
HKEY_CLASSES_ROOT\Typelib\{c7f00a9a-f1bc-436e-82c7-e8cae6fd67f7} (Trojan.Downloader) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Code Store Database\Distribution Units\{288c5f13-7e52-4ada-a32e-f5bf9d125f99} (Trojan.Downloader) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\RX ToolBar (Adware.RXToolbar) -> Quarantined and deleted successfully.

Registry Values Infected:
(No malicious items detected)

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\WINNT\smdat32m.sys (Rootkit.Agent) -> Quarantined and deleted successfully.

2. I did download Process Explorer and it appears that virtually all of the CPU usage is SVCHOST.exe and Avast virus software. It goes like this svchost goes up to 94% (or so) Avast then cycles up to about 64% as svchost cycles down to about 36%. Avast then "empties" and svchost starts up again. Everything else is under 2% except hardware interupts which occasionally goes to 7%

any ideas?

TIA
JP

#4 rigel

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Posted 23 February 2009 - 01:33 PM

You have an infection. That is a probable cause for all the spikes you see.

Please download ATF Cleaner by Atribune & save it to your desktop.
alternate download link DO NOT use yet.

Please download and install SUPERAntiSpyware Free
  • Double-click SUPERAntiSypware.exe and use the default settings for installation.
  • An icon will be created on your desktop. Double-click that icon to launch the program.
  • If asked to update the program definitions, click "Yes". If not, update the
    definitions before scanning by selecting "Check for Updates". (If you encounter
    any problems while downloading the updates, manually download them from
    here and
    unzip into the program's folder.
    )
  • Under the "Configuration and Preferences", click the Preferences... button.
  • Click the "General and Startup" tab, and under
    Start-up Options, make sure "Start SUPERAntiSpyware when Windows starts" box is unchecked.
  • Click the "Scanning Control" tab, and 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 a scan just yet.
Reboot your computer in "Safe Mode" using the F8 method. To do this, restart your computer and after hearing your computer beep once during startup (but before the Windows icon appears) press the F8 key repeatedly. A menu will appear with several options. Use the arrow keys to navigate and select the option to run Windows in "Safe Mode".

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 browser click Firefox 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.
  • If you use Opera browser click Opera 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.
Note: On Vista, "Windows Temp" is disabled. To empty "Windows Temp"

ATF-Cleaner must be "Run as an Administrator".

Scan with SUPERAntiSpyware as follows:
  • Launch the program and back on the main screen, under "Scan for Harmful Software" click Scan your computer.
  • On the left, make sure you check C:\Fixed Drive.
  • On the right, under "Complete Scan", choose Perform Complete Scan and click "Next".
  • After the scan is complete, a Scan Summary box will appear with potentially harmful items that were detected. Click "OK".
  • Make sure everything has a checkmark next to it and click "Next".
  • A notification will appear that "Quarantine and Removal is Complete". Click "OK" and then click the "Finish" button to return to the main menu.
  • 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.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#5 JP Smit

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Posted 24 February 2009 - 10:33 AM

OK, so far so good - it seems (i think) to be doing it much less?

Anyway, here is the log

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

Generated 02/23/2009 at 06:38 PM

Application Version : 4.25.1012

Core Rules Database Version : 3771
Trace Rules Database Version: 1730

Scan type : Complete Scan
Total Scan Time : 02:42:21

Memory items scanned : 181
Memory threats detected : 0
Registry items scanned : 5734
Registry threats detected : 0
File items scanned : 89818
File threats detected : 0

thanks all

#6 rigel

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Posted 24 February 2009 - 12:27 PM

Looks good.

Please run the F-Secure Online Scanner
Note: This Scanner is for Internet Explorer Only!
Follow the Instruction here for installation.
Accept the License Agreement.
Once the ActiveX installs,Click Full System Scan
Once the download completes, the scan will begin automatically.
The scan will take some time to finish, so please be patient.
When the scan completes, click the Automatic cleaning (recommended) button.
Click the Show Report button and Copy&Paste the entire report in your next reply.


Then update and rerun Malwarebytes... Post the fresh log.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#7 JP Smit

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Posted 25 February 2009 - 06:16 PM

F-secure report

Scanning Report
Wednesday, February 25, 2009 16:50:06 - 18:24:49
Computer name: DESKTOP
Scanning type: Scan system for malware, rootkits
Target: C:\


--------------------------------------------------------------------------------

Result: 2 malware found
TrackingCookie.Webtrends (spyware)
System
TrackingCookie.Yieldmanager (spyware)
System

--------------------------------------------------------------------------------

Statistics
Scanned:
Files: 28197
System: 3647
Not scanned: 6
Actions:
Disinfected: 0
Renamed: 0
Deleted: 0
None: 2
Submitted: 0
Files not scanned:
C:\PAGEFILE.SYS
C:\WINNT\SYSTEM32\CONFIG\DEFAULT
C:\WINNT\SYSTEM32\CONFIG\SAM
C:\WINNT\SYSTEM32\CONFIG\SECURITY
C:\WINNT\SYSTEM32\CONFIG\SOFTWARE
C:\WINNT\SYSTEM32\CONFIG\SYSTEM

#8 rigel

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Posted 25 February 2009 - 07:03 PM

Excellent...

Please update and rerun Malwarebytes - post the fresh log. Hoping for 0's here.

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#9 JP Smit

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Posted 25 February 2009 - 07:58 PM

Malwarebyte

Malwarebytes' Anti-Malware 1.34
Database version: 1804
Windows 5.0.2195 Service Pack 4

2/25/2009 8:07:08 PM
mbam-log-2009-02-25 (20-07-08).txt

Scan type: Full Scan (C:\|)
Objects scanned: 156280
Time elapsed: 1 hour(s), 26 minute(s), 7 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: 1

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:\Program Files\mozilla.org\Mozilla\regxpcom.exe (Trojan.FBrowsingAdvisor) -> Quarantined and deleted successfully.

#10 rigel

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Posted 25 February 2009 - 08:03 PM

C:\Program Files\mozilla.org\Mozilla\regxpcom.exe

This may be a false positive. Please browse to where the file was listed and see if it came back - regenerated.

If it has, please submit this file to jotti's : link

How are things running now? Is everything functioning normaly?

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#11 JP Smit

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Posted 25 February 2009 - 08:14 PM

doesn't seem to be there - but, the computer is still spiking.

thanks again

#12 rigel

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Posted 25 February 2009 - 08:34 PM

Take another look with Process Explorer. What is spiking now?

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#13 JP Smit

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Posted 26 February 2009 - 10:00 AM

System Idle process cycling from about 75-94

interestingly, if you hit Ctrl-Alt-Del for the task manager, performance shows at 100% after a couple of seconds it drops and remains low but Process Explorer shows it high still

#14 rigel

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Posted 26 February 2009 - 07:06 PM

At this point, I am not sure why you are still having the spikes. You did have a rootkit, so you may still have something lurking in your windows files. At this time, I would suggest moving to the HJT forum.

Please follow this guide from step (6). Post a HJT log to the HJT forum and a Team member will be along to help you as soon as possible. You may wish to post a link back to this topic to see what was discussed thus far.

If you need any help with the guide, please let me know. Best wishes - you are in good hands...

"In a world where you can be anything, be yourself." ~ unknown

"Fall in love with someone who deserves your heart. Not someone who plays with it. Will Smith


#15 JP Smit

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Posted 27 February 2009 - 10:47 AM

will do - thanks for all your help!




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