SVCHOST-svchost.exe -k netsvcs uses 90% + CPU Usage, slows powerful machine to crawl-Whatsup?

This particular example was very helpful to me.  I took a chance and fixed all the "file missing files" issues and rebooted . I then checked  once again with  HiJack This system scan to make sure that everything with "file missing" was gone.  I missed one.  I then fixed the errant file and rebooted again.  Success! ( at least I have success for about an hour. )  However, this example might be a bit more helpful if Joel would summarize what he is looking for in general.  From the example above it appeared to be anything with file missing and virus'.  Was there anything else to keep in mind?  Great job Joel!

Thanks,

Joaquin

Use the following trial software to delete the varient of TDL3 (alias Alureon) rootkit:

Hitman Pro is a second opinion scanner, designed to rescue your computer from malware

(viruses, trojans, rootkits, etc.) that have infected your computer despite all the security

measures you have taken (such as anti virus software, firewalls, etc.).

http://www.surfright.nl/en/hitmanpro

If you use Hitman Pro, you NEED to be connected to the internet.

 ALSO, if this ends up working. To keep this from happening AGAIN, download ALL three of these programs. Unless you already have good, Spyware, Antivirus, and Malware programs.

http://www.malwarebytes.org/mbam.php

This will check for malware, AND registry key errors, or so most of the forums say. >.>

http://superantispyware.com/

You can download the free version and it will check for spyware as well.

http://www.avast.com/eng/download-avast-home.html

This is a GREAT AV it works EXTREMELY well in conjunction for the above.

Young and learning...Have mercy - Chaos

If this post resolves your issue, please click the "Mark as Answer" or "Helpful" buttons. This helps other users with similar problems find the answer faster.

I too hace a problem with svchost consuming excess memory (and CPU). I tried every thing, including nightly super/deep anti-virus scans with Checkpoint ZoneAlarm (uopdated nightly as well) Malwarebytes' Anit-malware, Anitsuperspyware and Microsofts MSRT but the problem persisted. 

I tried to isolate the problem with the Process Explorer, tried to shut down individualt processes to further isolate and nothing helped.  Shutting down svchost and restarting the individual subprocesses (audio, RPC, etc.) provided some temporary relief but withing a few hours, the svchost process was consuming 50% (500MB) of RAM.

Last week I tried the MSRT from MS (version 3.9.3901.0) and it found and 'partially' remove a virus call Alureon.  MSRT recommended another full scan by anit-virus software so I ran another deep scan of ZoneAlarm Anti-virus. 

Evidently the combination of the two worked!  Since then the largest svchost.exe process has used only about 25MB RAM and the 'puter has been on and in use for 5 consecutive days. 

The Alureon rootkit can me hard to get rid of. I have found two scanners which seem to remove it. TDSS Killer and HitmanPro.

TDSSKiller.exe

HitmanPro 3.5

Sometimes deciding which battle to fight is the toughest battle of all.. Visit my forum @ http://repairbotsonline.forumotion.com/forum.htm

I too hace a problem with svchost consuming excess memory (and CPU). I tried every thing, including nightly super/deep anti-virus scans with Checkpoint ZoneAlarm (uopdated nightly as well) Malwarebytes' Anit-malware, Anitsuperspyware and Microsofts MSRT but the problem persisted. 

I tried to isolate the problem with the Process Explorer, tried to shut down individualt processes to further isolate and nothing helped.  Shutting down svchost and restarting the individual subprocesses (audio, RPC, etc.) provided some temporary relief but withing a few hours, the svchost process was consuming 50% (500MB) of RAM.

Last week I tried the MSRT from MS (version 3.9.3901.0) and it found and 'partially' remove a virus call Alureon.  MSRT recommended another full scan by anit-virus software so I ran another deep scan of ZoneAlarm Anti-virus. 

Evidently the combination of the two worked!  Since then the largest svchost.exe process has used only about 25MB RAM and the 'puter has been on and in use for 5 consecutive days.