malware! svchost.exe-advapi32.dll max out 100% CPU, need help to diagnose and fix

Discussion in 'Malware Help (A Specialist Will Reply)' started by TravelingJoel, Apr 10, 2005.

  1. TravelingJoel

    TravelingJoel Private E-2

    Hi there

    I've looked through this site and others, seen similar but not identical situations and tried some of the suggested solutions to no avail.
    Please Help!!! Here's my problem:

    Current Symptoms -
    100% CPU utilization by svchost.exe process - specifically the advapi32.dll thread
    System Information doesn't work - shows a blank when identifying what should be the system name in the "...can't find _... check network and path" error message
    No drag-drop
    No Paste operations (disabled from hotkeys, cntrl-v, and menus)
    Child windows only display on occassion (not exactly sure when/why)
    Some hyperlinks don't work, including ones that aren't supposed to open child windows
    MS Outlook (XP) displays "can't find this file. Make sure path and file name are correct" when trying to Send/Receive. However defined email accounts pass tests. Can't open Define Send/Receive Groups, but maybe due to child window status.
    All MS Office (XP) tools display "document could not be registered" error message.
    Windows Search disabled through Start menu
    Windows Installer errors - "either in Safe mode.." which I'm not "or installation not finished"
    Active X appears to be completely disabled (at least through browsers)
    Unable to download antivirus updates
    Windows Media Player displays "out of memory" and won't start

    Initial condition -

    Windows 2000 Professional - 5.00.2195 - SP4

    I ran windowsupdate about 2 weeks ago, my antivirus (NA Virusscan) definitions had been updated the day before, I use AdAware and Spysweeper constantly (with udpates), and Microsoft AntiSpyware beta.

    First signs of trouble -
    While surfing the net, the NA AntiVirus killed the following within a 15 min timeframe:
    Deleted %Profile directory%\GXUZCHM7\test[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\A1E3M7KP\index[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\TA984A66\index[1].htm JS/Exploit-HelpXSite
    Deleted %Profile directory%\3JZT1X5E\counter[1].htm Exploit-CodeBase
    Deleted %Profile directory%\3JZT1X5E\counter[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\GXUZCHM7\classload[1].jar Exploit-ByteVerify
    Deleted %Profile directory%\3JZT1X5E\loader2[1].htm Exploit-HelpZonePass
    Deleted %Profile directory%\GXUZCHM7\exploit[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\SD0NG94P\loader7[1].htm VBS/Psyme
    Deleted %Profile directory%\WHO7KBOJ\classload[1].jar Exploit-ByteVerify
    Deleted %Profile directory%\GXUZCHM7\loader6[1].htm VBS/Psyme
    Deleted %Profile directory%\UX4R2165\1[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\WHO7KBOJ\BlackBox[1].class Exploit-ByteVerify
    Deleted %Profile directory%\GXUZCHM7\Dummy[1].class Exploit-ByteVerify
    Deleted %Profile directory%\W12B4HIV\VerifierBug[1].class Exploit-ByteVerify
    Deleted %Profile directory%\01CDUJGL\x3[1].htm JS/Exploit-DragDrop
    Deleted %Profile directory%\UX4R2165\5[1].htm VBS/Psyme
    Deleted %Profile directory%\GXUZCHM7\goatse[1].jar Exploit-ByteVerify
    Deleted %Profile directory%\SD0NG94P\loader2[1].htm Exploit-HelpZonePass
    Deleted %Profile directory%\01CDUJGL\loader6[1].htm VBS/Psyme
    Deleted %Profile directory%\GXUZCHM7\loader7[1].htm VBS/Psyme
    Deleted %Profile directory%\UX4R2165\exploit[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\WHO7KBOJ\count5[1].htm VBS/Psyme
    Deleted %Profile directory%\GXUZCHM7\files[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\SD0NG94P\in[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\A1E3M7KP\test[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\SD0NG94P\1[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\TA984A66\BlackBox[1].class Exploit-ByteVerify
    Deleted %Profile directory%\ARUBMDY7\Dummy[1].class Exploit-ByteVerify
    Deleted %Profile directory%\01CDUJGL\VerifierBug[1].class Exploit-ByteVerify
    Deleted %Profile directory%\A1E3M7KP\BlackBox[1].class Exploit-ByteVerify
    Deleted %Profile directory%\6QA278MB\Dummy[1].class Exploit-ByteVerify
    Deleted %Profile directory%\ARUBMDY7\VerifierBug[1].class Exploit-ByteVerify
    Deleted %Profile directory%\SD0NG94P\BlackBox[1].class Exploit-ByteVerify
    Deleted %Profile directory%\UX4R2165\Dummy[1].class Exploit-ByteVerify
    Deleted %Profile directory%\WHO7KBOJ\VerifierBug[1].class Exploit-ByteVerify
    Deleted %Profile directory%\GXUZCHM7\win32[1].exe Generic Downloader.f
    Deleted %Profile directory%\GXUZCHM7\index[3].htm JS/Exploit-HelpXSite
    Deleted %Profile directory%\W12B4HIV\counter[1].htm Exploit-CodeBase
    Deleted %Profile directory%\W12B4HIV\counter[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\TA984A66\classload[1].jar Exploit-ByteVerify
    Deleted %Profile directory%\GXUZCHM7\start[1].htm JS/Exploit-HelpXSite
    Deleted %Profile directory%\A1E3M7KP\msjld[1].jar Exploit-ByteVerify
    Deleted %Profile directory%\01CDUJGL\goatse[1].jar Exploit-ByteVerify
    Deleted %Profile directory%\UX4R2165\x3[1].htm JS/Exploit-DragDrop
    Deleted %Profile directory%\WHO7KBOJ\5[1].htm VBS/Psyme
    Deleted %Profile directory%\A1E3M7KP\BlackBox[1].class Exploit-ByteVerify
    Deleted %Profile directory%\UX4R2165\Dummy[1].class Exploit-ByteVerify
    Deleted %Profile directory%\WHO7KBOJ\VerifierBug[1].class Exploit-ByteVerify
    Deleted %Profile directory%\SD0NG94P\files[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\6QA278MB\files[1].htm Exploit-MhtRedir.gen
    Deleted %Profile directory%\WHO7KBOJ\BlackBox[1].class Exploit-ByteVerify
    Deleted %Profile directory%\W12B4HIV\Dummy[1].class Exploit-ByteVerify
    Deleted %Profile directory%\SD0NG94P\VerifierBug[1].class Exploit-ByteVerify
    Deleted %Profile directory%\SD0NG94P\BlackBox[1].class Exploit-ByteVerify
    Deleted %Profile directory%\UX4R2165\Dummy[1].class Exploit-ByteVerify
    Deleted %Profile directory%\DTJ6E417\VerifierBug[1].class Exploit-ByteVerify
    Deleted %Profile directory%\6QA278MB\win32[1].exe Generic Downloader.f

    followed a couple hours later (when I was no longer using the computer)
    Deleted C:\WINNT\system32\anukem.exe Proxy-FBSR
    Deleted C:\WINNT\system32\enasa.exe W32/Sdbot.worm.gen


    Current Status -

    I've done a lot of research on this and other boards, I've tried everything, but don't know what to do now.

    Ran antivirus again using day-old definitions - both in safe mode as normal - no virus found
    ran adaware - nothing found
    ran spybot - nothing found
    ran CWshredder - nothing found
    ran Spybotsd13 - nothing found
    ran Stinger - nothing fouind

    using process explorer discovered that the svchost.exe thread using 100% CPU is the advapi32.dll (5.00.2195.6876)

    Any ideas? thanks in advance!

    Joel
     
  2. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    - Run ALL the steps in this Sticky thread READ ME FIRST BEFORE ASKING FOR SUPPORT: Basic Spyware, Trojan And Virus Removal 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:

    - Download HijackThis 1.99.1

    - Unzip the hijackthis.exe file to a folder you create named C:\Program Files\HJT

    - Do NOT run Hijack This from the Desktop, a temp folder, or a sub-folder of C:\Documents and Settings, or choose to run it directly from the downloaded ZIP file.

    - Before running HijackThis: You must close each of the following:your web browser, e-mail client, instant messenger, and programs like notepad, wordpad, MS Word etc. And any other unnecessary running programs.

    - Run HijackThis and save your log file.

    - Post your log as an ATTACHMENT to your next message. (Do NOT copy/paste the log into your post).
     
  3. TravelingJoel

    TravelingJoel Private E-2

    Thanks in advance for your help!!!

    Here are the results of the pre-scans: incidentally, running all of them took roughly 18 hours :)

    Network Associates Antivirus - no items found
    TrendMicros housecall - no items found
    Symantec Security Check - unable to run via the web (see symptoms)
    AVERT Stinger - no items found
    Ad-aware - no items found (both safe and normal)
    SpySweeper - no items found
    CWShredder - no items found (both safe and normal)
    Sbybot S&D - DSO entries found and cleaned

    AboutBuster - no ADS found
    HSRemove - ActiveX Distribution Unit registry deleted, followed by out-of-control process, with memory allocation growth >140Mb after 10 mins, ran out of memory after 25 mins. Subsequent scan, 8 items removed.
    CCCleaner - removed all temp files, cookies, etc
    Trojan scan (online) - no infected files - unable to scan System Volume Information - access denied
    Avast! - no virus found - PGP Keyserver (Network Associates) files could not be read (PGPkeyserver-pubring.pkr and PGPkeyserver-secring.skr)
    A-squared - C:\WINNT\msbbi.exe - Trojan.Win32.Imiserv.c - removed

    HJT file attached!

    Let me know what I need to do :)
     

    Attached Files:

  4. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    AboutBuster & HSRemove need only be run if you have about:blank or HSA hijack problems. So why did you run them.

    Some the other items, you ran like TrojanScan and A-Squared are from the Alternative Scans section, which is suggested only if you still have problems. If you still have problems, you should be telling us what they are.

    You installed HijackThis to the following folder:
    C:\WINNT\Profiles\Jsisk\Desktop\HijackThis.exe

    This is not a save place to install it. It is too easy to loose backups that way and the backups would be created on your Desktop. Please install it as suggested.

    While the three below applications are useful, having all of them install and running is placing a tremendous load on you CPU power. I would disable Spybot's Teatimer (but keep Spybot) and then choose either MS Antispyware or SpySweeper and uninstall the other.

    C:\Program Files\Microsoft AntiSpyware\gcasServ.exe
    C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe
    C:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
     
    Last edited: Apr 12, 2005
  5. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Run HijackThis and select the following lines but DO NOT CLICK FIX until you exit all browser sessions including the one you are reading in right now:
    O13 - WWW. Prefix: http://
    O16 - DPF: {56336BCB-3D8A-11D6-A00B-0050DA18DE71} (RdxIE Class) - http://software-dl.real.com/264d8981a79ef6867e02/netzip/RdxIE601.cab
    O16 - DPF: {6BEA1C48-1850-486C-8F58-C7354BA3165E} (Install Class) - http://updates.lifescapeinc.com/installers/pinstall/pinstall.cab

    After clicking Fix, exit HJT.

    Now reboot in normal mode and tell us how things are working.
     
  6. TravelingJoel

    TravelingJoel Private E-2

    All the below symptoms still exist. I am completely unable to do anything on the machine until I kill the advapi32.dll thread within the svchost.exe process.

    Additional things I've noticed (not necessarily new)
    Can't see the "download" link for Firefox
    When trying to run Firefox setup - "Program too big to fit in memory" error
    Add/Remove programs shows a window with only a heading row and no

    As for your other comments, I ran alternatives due to the above problems which did not go away. Under normal load, having all 3 shield-programs running is not using more than 5% CPU total. I am unable to un-install anything that uses windows installer, so can't remove Microsoft AntiSpyware. As well, since I have no move or paste functions, I was not able to change the HJT location or backup folder. I have since discovered a work around, that if I zip and extract I can at least move files.

    thanks again for your help with this.
     
  7. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Were you able to fix the HJT line items I pointed out below?

    Did you disable Spybot's Teatimer?

    Is the below ProxyServer a valid item for you?
    R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = http://pcore-w01/core.proxy:80

    Do you know what the below is used for:
    O23 - Service: NuTCRACKER Service (NuTCRACKERService) - DataFocus, Inc. - C:\WINNT\system32\nutsrv4.exe

    How much memory is in this PC (appears to be a laptop)?
     
  8. TravelingJoel

    TravelingJoel Private E-2

    No problem fixing the HJT items.

    I disabled TeaTimer, but it restarts on startup. Do I need to get rid of the HJT entry?

    The proxy is valid for one of the buildings I worked at. Actually, I no longer need it.

    Nutcracker is part of the Rational toolset. It's been on the machine for almost 2 years.

    Machine is an IBM T30, 2 GHz Pentium-M, 512 MB RAM

    Also, last night during nightly SpySweeper run, discovered Ehttp CWS. Not sure how/when that showed up, or why it wasn't caught before. Fixed.

    Spybot also detected a DSO Exploit registry entry, fixed 4 entries.

    All the symptoms also appear in Safe mode.
     
  9. TravelingJoel

    TravelingJoel Private E-2

    SUCCESS - malware! svchost.exe-advapi32.dll max out 100% CPU

    OK, so I after trolling through Google for a while, I found something that most closely reflected my situation.

    WORM_SDBOT.AXU

    See the following site for details:
    http://www.trendmicro.com/vinfo/virusencyclo/default5.asp?VName=WORM_SDBOT.AXU&VSect=Sn

    A couple things:
    1 - I could not find the initial culprit identified in the virus definition (HPPhotoManager.exe), but I assume that it was deleted by one of the many scans I completed.
    2 - I did not have either of the registry keys or values indicated by the solution. I created them and assigned the data as directed.
    3 - I am in the process of installing/verifying installation of each of the MS security updates. I believe the first 3 already exist on my machine through Win 2000 SP4. The last one on the list KB835732 is not in SP4, and it's on the large side at 6.82 MB.

    At the moment I am running through final scans for spyware and we'll see if the network sniffer finds any unusual activity to be sure.

    thanks, Chaslang for your help!

    Joel
     
  10. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    You did not disable it. You just kill the current running process. Do the below.

    To disable TeaTimer, run Spybot and click Mode and select Advanced Mode. Then click Tools and select Resident. Now in the right window pane, uncheck TeaTimer.
    Also while this is open, in the left column now select IE Tweaks and then in the right pane make sure all the Miscellaneous locks are unchecked.
    Now quit Spybot!

    Then you never completed the READ ME FIRST steps. You did not install the patch to Spybot.
     

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