Unexplained CPU Usage...Malware??

Discussion in 'Malware Help - MG (A Specialist Will Reply)' started by Hanfresco, May 16, 2007.

  1. Hanfresco

    Hanfresco Private E-2

    Hi guys,

    So for a few days now, my comp's been having major lag sometimes (Moving the mouse around would result in periodic pauses). When I open up task manager, there is unexplained CPU usage. see image attached.

    So I suspected it was some malware, and ran AVG Free, AVG Anti-Spyware, and Spybot Search and Destroy. It seemed like something was found and removed. But just as I thought everything was fine, it happened again!

    Thanks,

    Hanfresco

    Edit:
    Comp specifications:
    Windows XP Home
    Intel Pentium M 1.73 GHz
    1 Gig RAM

    Tests are running
     

    Attached Files:

  2. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Welcome to Major Geeks!

    There is no unexplained CPU useage in your snapshow. System Idle Process is not a process! It it the amount of free time your CPU has. Thus your CPU was free (not doing anything) 98% of the time.

    Your problem may not be malware related, however, if you want to check your PC for malware, follow the below instructions.

    Please follow our standard cleaning procedures which are necessary for us to provide you support. Also there are steps included for installing, renaming, running, and posting HijackThis logs as attachments.
    • Run ALL the steps in this Sticky thread READ & RUN ME FIRST Before Asking for Support
    • Make sure you check version numbers and get all updates.
    • Very Important: Make sure you tell us the results from running the tutorial...was anything found? Were you unable to complete any of the scans?...Were you unable to download any of the tools?...Did you do the on-line scans as suggested? etc.
    • After doing ALL of the above you still have a problem make sure you have booted to normal mode and run the steps in the below link to properly use HijackThis and attach a log:
    Make sure you also rename HijackThis.exe as suggested in the procedures. Use analyse.exe for the new name. This is very important due to some new infections going around.
    • When you return to make your next post, make sure you attach the following logs and that you have run these scans in the following order too:
      • CounterSpy - only for Windows XP, 2K, & NT users
      • AVG Antispyware log - ONLY IF NEEDED you were not able to run CounterSpy. - only for Windows XP, 2K, & NT users
      • Bitdefender - from step 6
      • Panda Scan - from step 6
      • runkeys.txt - the log from GetRunKey.bat
      • newfiles.txt - the log from ShowNew.bat
      • HijackThis
    NOTE: You can only attach 3 files in a single message so it will require that you use two messages to attach all of these logs!
     
  3. Hanfresco

    Hanfresco Private E-2

    Yea, I understand that, but look at the bottom of the task manager. I circled it in red in this attached pic.

    I've left task manager on for a while. CPU usage is usually between 20 - 30%. But this only happens some times. Last time it happened when I opened AVG. The time before that, there was no apparent reason. =/
     

    Attached Files:

  4. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    So if it is only temporary when running particular applications (especially a scanning tool), then it is not a problem either. However, Task Manager is really not a very good tool to show what is running on your PC. There are many, many things it will not show especially when it comes to malware. A tool like Process Explorer is much better and will show everything except rootkit like processes.

    You need to attach all the other logs so that we can determine you malware status.
     
  5. Hanfresco

    Hanfresco Private E-2

    The thing is it's not always a running program related. Yesterday I left it on for 20 minutes and the mouse started to pause and jump. Once it starts to lag, it stays. The only solution is restarting, since every program I will have pauses every few seconds.

    Anyway, the Bitdefender test is running, but it seems to be taking quite a while.

    I'll try out the Process Explorer too.
     
  6. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    I have seen this happen on many PCs when it wasn't malware related. Sometimes it is related to the software/processes running on the PC. I'm not saying that is your case. Just that it is possible that it is not malware. We will know when you finish with the READ & RUN ME.

    Yes the scans can take quite awhile to run. It is best that you not be doing anything else (especially surfing) while running the scans. It will slow them down tremendously and it could interfere with fixing problems. Thus if you have the scans running and you are using the PC to connect here, you should not be doing that.
     
  7. Hanfresco

    Hanfresco Private E-2

    Here's the BitDefender report. I accidently pressed the show all files button so around 10 clean files were included. :eek:
     

    Attached Files:

  8. Hanfresco

    Hanfresco Private E-2

    Pandascan report
     

    Attached Files:

  9. Hanfresco

    Hanfresco Private E-2

    And finally..Highjackthis
     

    Attached Files:

  10. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    You forgot to attach the requested log from AVG Antispyware. Please attach it.

    Did you put the below items in your hosts file? Why are they necessary?
    O1 - Hosts: 82.96.43.2 www.imperialconflict.com
    O1 - Hosts: 82.96.43.2 imperialconflict.com

    Do you recognize the below to be something valid and that you installed?
    O2 - BHO: ThunderIEHelper - {0005A87D-D626-4B3A-84F9-1D9571695F55} - C:\WINDOWS\system32\xunleibho_v14.dll
    O2 - BHO: ThunderBHO - {889D2FEB-5411-4565-8998-1DD2C5261283} - C:\Program Files\Thunder\ComDlls\XunLeiBHO_007.dll
    O8 - Extra context menu item: &ʹÓÃѸÀ×ÏÂÔØ - C:\Program Files\Thunder\Program\GetUrl.htm
    O8 - Extra context menu item: &ʹÓÃѸÀ×ÏÂÔØÈ«²¿Á´½Ó - C:\Program Files\Thunder\Program\GetAllUrl.htm
    O9 - Extra button: ???¡¥??¨¤¡Á5 - {09BA8F6D-CB54-424B-839C-C2A6C8E6B436} - C:\Program Files\Thunder\Thunder.exe
    O9 - Extra 'Tools' menuitem: ???¡¥??¨¤¡Á5 - {09BA8F6D-CB54-424B-839C-C2A6C8E6B436} - C:\Program Files\Thunder\Thunder.exe

    Why do you have the below running? Do you have a remote control for the DVD player in your PC? Is it used in a Home Theater system?
    WINREMOTE"="\"C:\\Program Files\\Common\\Bin\\WinRemote.exe\""
    "Home Theater SchSvr"="\"C:\\Program Files\\Common Files\\InterVideo\\SchSvr\\SchSvr.exe\""


    Why do two of the below need to be run at startup?
    "DAEMON Tools-1033"="\"C:\\My Gaming Files\\DAEMON Tools\\daemon.exe\" -lang 1033"
    "DAEMON Tools"="\"C:\\My Gaming Files\\DAEMON Tools\\daemon.exe\" -lang 1033"

    Do you know what the below file is for?
    C:\WINDOWS\system32\dskdrull.ini

    You did not do step 2 of the READ ME. Please do it now so that hidden & system files can be seen and also so that file extensions can be viewed.
     
    Last edited: May 17, 2007
  11. Hanfresco

    Hanfresco Private E-2


    Log from AVG was posted in the 3rd post, and the thread won't let me attach it again.

    I'm not sure what hosts files are, but imperialconflict.com should be safe. I've been visiting that website for years.

    The Thunder and Xunlei stuff should ok too; I've also had them for a while.

    Yes I do have a remote control for a home theatre system that I never use.

    I usually disable everything at startup. The Daemon tools only showed up because I booted in normal mode for the tests. Although I don't know why 2 loaded. =/

    No, I don't know what C:\WINDOWS\system32\dskdrull.ini is.
    EDIT: I found this file. It's 1.46 MB. It was created April 24, 2007 (a lil early for the problems I've been having). The summary tab contained no information. No source no authors etc.

    Step 2 is now completed. Should I redo all the steps again?

    What could it be if it's not malware?

    I also ran a Kaspersky's online test. It found some things which I don't understand.
     

    Attached Files:

  12. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Do you want to remove those entries from Startup? We can fix them with HJT!

    Probably due to using MSconfig to disable it and then maybe doing another install or a tweak which causes the program to reinstate the startup. This is another of about 10 reasons you should not use MSconfig to control startups as we state in the READ ME. If you don't need this, why are they here. Do you want to have HJT fix them so they no longer load? My procedure below will remove one of them, but you can remove both if it is not needed. Some people have experienced problems using Daemon Tools.

    Load the file into wordpad. What kind of info do you see in it? Does anything look familiar.

    No!

    Potentially some software that you are loading. Does it happen in safe mode?

    It did not find anything but LogMeIn which I assume you use.


    Now Copy the bold text below to notepad. Save it as fixME.reg to your desktop. Be sure the "Save as" type is set to "all files" Once you have saved it double click it and allow it to merge with the registry.

    Now reboot in normal mode

    Now locate the below files and delete them if found:
    C:\WINDOWS\IFinst27.exe
    C:\WINDOWS\system32\nnnmp.ini
    C:\WINDOWS\system32\buyurl0501.dat
    C:\WINDOWS\Downloaded Program Files\HGStart9USA.exe

    Now attach the below new logs and tell me how the above steps went.
    1. GetRunKey
    2. ShowNew
    3. HJT


    Make sure you tell me how things are working now!
     
  13. Hanfresco

    Hanfresco Private E-2

    Sure!

    Ah! I just re-read that portion and have removed both daemons with ccleaner along with some other stuff.

    NOTHING looks familiar. I'll quote a line here and see if anyone can make any sense out of it.
    The symbols show up as boxes in nnotepad and this was all in one line.

    The reg stuff went without any problems.

    Done..but nnnmp.ini could not be found, and there is a HGStart9USA Class, but no HGStart9USA.exe in Downloaded Program Files. Should I delete the "Class" file?

    EDIT: When the lag happened earlier, I opened up the Process Explorer you showed me earlier, and the unexplained usage was associated with Interrupts -> <description> Hardware Interrupts. The lag happened when I opened utorrent this time. It went to around 90% and even 100% for a few seconds.
     

    Attached Files:


MajorGeeks.Com Menu

Downloads All In One Tweaks \ Android \ Anti-Malware \ Anti-Virus \ Appearance \ Backup \ Browsers \ CD\DVD\Blu-Ray \ Covert Ops \ Drive Utilities \ Drivers \ Graphics \ Internet Tools \ Multimedia \ Networking \ Office Tools \ PC Games \ System Tools \ Mac/Apple/Ipad Downloads

Other News: Top Downloads \ News (Tech) \ Off Base (Other Websites News) \ Way Off Base (Offbeat Stories and Pics)

Social: Facebook \ YouTube \ Twitter \ Tumblr \ Pintrest \ RSS Feeds