How do I get rid of PSGuard? already read the sticky

Discussion in 'Malware Help - MG (A Specialist Will Reply)' started by Signs, Aug 15, 2005.

  1. Signs

    Signs Private E-2

    I'm running Windows2000, and have been infected with PSGuard. I followed all of the steps in the sticky thread on how to get rid of trojans. Every time I open Internet Explorer, my Trend Micro software detects TROJ_STARTPAG.RE, and quarantines a file called axobj.dll. The quarantine log also has lsukr.dll, oxkkq.dll, and dsnvi.dll. Nove of these can be found in a search of the hard drive.

    After running all the suggested spyware software in the sticky, I still get the same trojan when I start internet explorer. About:blank manages to become the start page every so often. When I re-run Spybot, it finds CoolWWWSearch, Trek Blue Error Nuker, and the aforementioned PSGuard. PSGuard is the only one it can't delete.

    This is driving me crazy! I made a Hijack This log, let me see if I can attach it:
     

    Attached Files:

  2. Signs

    Signs Private E-2

    OK, let's see if I can recap the results. I followed the instructions as much as I could. I couldn't see a way to disable System Restore for Windows2000. The first run-through, HiJack This couldn't kill sysar.exe and crgg32.exe. I did kill all the other processes you listed. I also couldn't delete sysar.exe and crgg32.exe from their folders, or even from the DOS prompt. None of the other specific files you asked me to delete from WINNT and System32 were there. I mistakenly shut down the PC without pulling the power cord, so I ran through all these steps again.

    This time, HiJack This was able to kill sysar.exe and crgg32.exe. The R3 Default URLSearchHook was back, so I killed it and I think one other process. I noticed something suspicious: 023 Service:Workstation Netlogon Svc-[some jibberish]-unkown owner-C:\WINNT\sysar.exe I wanted to kill it, but I didn't. This time I was able to delete crgg32.exe and sysar.exe from their folders.

    Pulled the power cord and repeated the steps, but didn't find anything else. I emptied the recycle bin, but I don't have a prefetch folder as far as I can tell. Ran CCleaner and HSRemove. AboutBuster has been run both times, I didn't see anything about a 'second scan'. It adds new information to the same log file, so it should all be available (see attached).

    Rebooted in normal mode and ran CCleaner again. Reset my Explorer settings. Launched Internet Explorer to come on to this forum and post results: Trend Micro is still detecting TROJ_STARTPAG.RE virus, with axobj.dll being the infected file. I ran Spybot again to see what it picked up, it found and fixed 34 instances of CoolWWWSearch.Aff.Winshow, a Startpage-EH, and 3 instances of Trek Blue Error Nuker. PSGuard was still there, and Spybot still couldn't delete it.

    After I read the second response above, I did a search for f23mxins*. There must have been 20 variations of it, all of which I deleted.

    I feel like we're on to something here . . . any more ideas?
     

    Attached Files:

  3. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Do not stop C:\WINNT\system32\f23hser.exe or try to delete the file. It is an NT service related to: ATI Technologies Inc. FireFL23Util

    Note: The HJT log posted does not show the service that Signs mentioned:

    I would expect that a new log after reboot and surfing is going to show more problems.
     
  4. Signs

    Signs Private E-2

    OK, I downloaded Pocket KillBox and did what you suggested. Fortunately I realized f23hser.exe was part of my FireGL software, then I saw the other post, lol. Still getting the trojan, still getting popups. This time I ran HJT before and after getting online, see attached.

    I've downloaded Ewido, and will try it next.
     

    Attached Files:

  5. Signs

    Signs Private E-2

    Wow, what can I say except that Ewido ROCKS. I didn't run a complete system scan because I have a lot of data on D: that can't be disturbed. So I ran a custom scan of the registry, memory, and C: After all that work previously, it still found and fixed 45 problems; see report. After I got online, I made another HJT log too, see attached.

    When I launched internet explorer, no trojan warning from Trend Micro, and no popups so far! I'll keep an eye on it, I'm gun shy about claiming success at this point.

    Any follow-up checks or reporting I should do? I plan to read through the sticky on how to prevent future problems.
     

    Attached Files:

  6. Signs

    Signs Private E-2

    OK, fixed the two entries. Could not find sdkbr.dll in the WINNT or system32 directories, so maybe that is a good thing. For kicks I ran Spybot again, and is still finding the CoolWWW and PSGuard trojans, and not able to delete PSGuard. Doesn't seem to be affecting anything so far though, still no hijacking or popups going on.

    To answer your question, yes, I would like to clean up as much crap as possible on my computer, wherever it can be found. If I've got unnecessary processes running, then let's hear it.

    Oh, new HJT log attached.
     

    Attached Files:

  7. Signs

    Signs Private E-2

    OK, fixed all the things you suggested. I've already run CWShredder, but I ran it again just to check. It didn't find anything. Spybot still picks up PSGuard, but CoolWWW seems to be gone for now. If I click on PSGuard in Spybot, it gives me the following information: HKEY_LOCAL_MACHINE\SOFTWARE\ShudderLTD\PSGuard

    if that means anything to you. I bet if I run HJT again it will pick up a bunch of axobj.dll processes running . . . . let me try it . . . hmm I was wrong, it didn't find any. See attached.
     

    Attached Files:

  8. Signs

    Signs Private E-2

    Not any more. Before I discovered this forum I had already removed PSGuard that way, I don't recall ShudderLTD being there. In any case, neither of them show up now in Add/Remove, just the Spybot search.

    Is HKEY_LOCAL_MACHINE a reference to the registry key? How can one gain access to this?
     
  9. Signs

    Signs Private E-2

    I definitely don't know exactly what I"m doing. I downloaded RegSeeker, and it found 38 instances of PSGuard. I couldn't figure out a way to create a log file or copy/paste into the notepad. I'd like someone more knowledgeable to at least look at what it found . . .

    Most of the references are to a C:\Program Files\PSGuard\Core.dll file, even though I can't find a PSGuard directory anywhere. It also references WndSystem.dll in the same directory, as well as other things that have names like:

    SOFTWARE\Microsoft\Windows\CurrentVersion\App Management\ARPCache\PSGuard spyware remover

    I see Regseeker can back up the files before deletion, is this a reasonably safe way to proceed in case I nuke anything important?
     
  10. Signs

    Signs Private E-2

    Just to be 100% sure, am I deleting everything RegSeeker finds, or just the things with PSGuard and ShudderLTD? Don't want to screw this up . . .
     
  11. Signs

    Signs Private E-2

    OK, this is actually becoming fun. Does that make me a geek? After running RegSeeker numerous times, it consistently turns up one entry: SOFTWARE\ShudderLTD\PSGuard\PSGuard. If I search for PSGuard it shows up twice, but it's the same string. ShudderLTD shows up once, same string. It disappears when I delete it, but reappears on the next scan. I let Spybot run again on a restart, just to see if it had any better luck deleting PSGuard that way, but it didn't.

    At this point I guess I'm just being anal about it. There doesn't seem to be any leftovers except for this mysterious file tree. Hopefully it is not just playing dead . . . .
     
  12. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Here is a useful tool that you guys can make use of.

    Download the Registry Search Tool from here:

    http://www.billsway.com/vbspage/vbsfiles/RegSrch.zip

    Unzip to your Desktop and double click on regsrch.vbs
    (if you have script protection, please allow this to run)

    In the dialog that opens enter the following:

    PSGuard
    Press 'OK'

    The search will run for a while then alert you when it is finished.

    Press 'OK' and copy the contents of the WordPad window and post in this thread.


    Then repeat the above while search for ShudderLTD

    Attach the log for both searches here.


    I bet something like below exists:
    HKEY_LOCAL_MACHINE\SOFTWARE\ShudderLTD
    HKEY_LOCAL_MACHINE\SOFTWARE\ShudderLTD\PSGuard
     
  13. PhilliePhan

    PhilliePhan Guest

    Hey guys,

    You could try this:


    Download SmitRem
    Boot to Safe Mode and run smitRem.exe and follow the prompts.
    It will create a log at C:\smitfiles.txt - Please attach it.

    If that doesn't get it, you could try regedit and manually yank it out of there ;)

    PP :)
     
  14. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    That was my next step or I would have used my manual steps! ;)
     
    Last edited: Aug 16, 2005
  15. Signs

    Signs Private E-2

    Thanks for all the help guys. I downloaded and ran the vbs tool. It didn't find ShudderLTD, so there is not file for that. It did find PSGuard, see attached.

    I might try SmitRem. I'm dimly aware of the Regedit feature if I search way back through the cobwebs to 10th grade computer class . . .
     

    Attached Files:

  16. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    It found ShudderLTD. It is on the same lines as PSGuard.


    Copy the contents of the below Quote Box to Notepad. Then click File and then Save As. Change the Save as Type to All Files. Name the file fixPSG.reg and then click save. (make sure you save it somewhere you can find it. Saving it to your Desktop may make that easy.) Then double-click on the fixPSG.reg file on your desktop (or locate it with Windows Explorer and double click on it if not saved to the Desktop) and when it prompts to Add in to the registry, say yes
     
  17. Signs

    Signs Private E-2

    The vbs tool did not delete the file upon closing Wordpad.

    I just made the registry entry you suggested . . . let me see what happens . . . RegSrch is still finding PSGuard.
     
  18. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    Where is it finding it?
     
  19. Signs

    Signs Private E-2

    I did another Spybot check just to confirm. I didn't realize I could get into the Registry Editor from Spybot. The full name of the file, or key, or whatever it is, is as follows:

    HKEY_LOCAL_MACHINE\SOFTWARE\ShudderLTD\PSGuard\PSGuard\License

    If I highlight ShudderLTD, PSGuard, or PSGuard, then new information appears in the box on the right hand side of the Registry Editor window. Under "name" there is a red box icon with "ab" inside it, then the word "Default" in perentheses. Under "type" it says REG_SZ.

    I tried deleting and/or renaming all of the files listed above, but it won't let me. I can click open the ab-(Default) icon, and there is a blank field called 'value data' that I can type something in. I don't know what any of this means obviously.
     
  20. chaslang

    chaslang MajorGeeks Admin - Master Malware Expert Staff Member

    The registry patch I gave should have remove the whole ShudderLTD key and eveything below it. It sounds like one of two things is preventing it:
    1) some malware is still running and blocking it
    2) you do not have the correct permission for your user account to edit or change this registry key.

    Do you have Administrator priviledges?

    Try running the SmitRem tool the Phillie gave. It may take care of this issue. Make sure you run it from safe mode (they could be another reason for my registry patch not working.....we may have needed to do it in safe mode.)
     
  21. Signs

    Signs Private E-2

    You're going to think I'm an idiot . . . I have administrator priveleges, but I wasn't logged on as administrator. It never even occured to me to try -- I just logged out and logged in as Administrator, and it was like "welcome to Windows, would you like to register?", I guess I just always logged on as me.

    SO, which one of these steps should I do over, while logged on as Administrator?
     
  22. Signs

    Signs Private E-2

    As far as I know my normal account has full priveleges. I never get any messages prompting me for the administrator password or anything.

    Anyway, I ran Spybot again logged on as administrator, and also the registry key thing, but no dice. I downloaded SmitRem yesterday, gonna try that here over lunch.
     
  23. Signs

    Signs Private E-2

    KaBOOM! SmitRem did it. I logged on to administrator in safe mode, with the internet connection severed as a precaution. Does it have a specific tool to look for ShudderLTD? Because it found it in like two seconds, before even running the scan. See attached log file, it says it removed it. Logged back on as myself, ran Spybot and it found no threats!

    MajorGeeks has done it! Thank you.


    Wait, now that's weird. When I went to attach the file, Trend Micro popped up a warning window that it found an infected file LTD.exe in the SmitRem folder. It lists the virus as HKTL_NIOREH.A. I hope it is just mis-recognizing this.
     

    Attached Files:

  24. Signs

    Signs Private E-2

    Oh, and in going through all these steps, my computer has much snappier response than before. Must have had a whole lot of junk. ;)
     

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