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Win32 Huer virus - how do I kill it and know it's really gone


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#1 broboze

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Posted 05 December 2008 - 04:06 PM

Hello,

My computer had its desktop changed overnight and a bunch of audio streams were playing all at once. taskman and regedit was disabled. Malware popus all over the place, machine was running horribly slow.

I downloaded the free AVG 8.0 antivirus, updated it, disconnected from the internet and scanned. AVG found many files that were labeled as win32 Heur virus, and deleted them. I got a 3rd party registry editor so I could enable regedit and that worked. I then enabled taskmanager using regedit.

All was well, the machine ran fast again, the malware was gone. But every 24 hours AVG 8.0 keeps detecting threats on startup, these virus/trojans are coming back somehow, they always have a slightly different name but they end up as .exe's in my temp folder.

Its getting to the point where I don't know what to remove now to fix this issue or even how to verify if the problem is truly gone.

Please advise.

Much thanks in advance.

Broboze.

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#2 ruby1

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Posted 05 December 2008 - 04:14 PM

welcom :thumbsup:

would you please clarify;
you say you have just installed AVG 8.0 antivirus ; have you any other antivirus program installed or have you been running with NO antivirus program at all?

#3 broboze

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Posted 05 December 2008 - 04:30 PM

Thank you and thanks for the speedy response. I have no other virus protection installed or running and yes I was not using any protection when I was infected.

#4 ruby1

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Posted 05 December 2008 - 05:04 PM

As,as you say you have been running completey unprotected so far(?) may i suggest you run a scan to see what it finds and let us see the report for checking?


Please download Malwarebytes Anti-Malware and save it to your Desktop.
  • 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. MBAM may make changes to your registry as part of its disinfection routine. If you're using other security programs that detect registry changes, they may alert you after scanning with MBAM. Please permit the program to allow the changes.

please let us see its report for checking to see how healthy (or otherwise) the computer is :thumbsup:

#5 broboze

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Posted 05 December 2008 - 05:11 PM

ok I'll do that now. My hijack this log shows this to be the culprit:

F2 - REG:system.ini: UserInit=C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\ntos.exe

Thats looks like the problem to me but I am not an expert, just a programmer ;)

Btw- I am running windows XP on a macbook pro using VMWare.

#6 broboze

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Posted 05 December 2008 - 05:39 PM

wow it found so much more than AVG, here is the log:
Malwarebytes' Anti-Malware 1.31
Database version: 1464
Windows 5.1.2600 Service Pack 2

12/5/2008 2:40:23 PM
mbam-log-2008-12-05 (14-40-23).txt

Scan type: Quick Scan
Objects scanned: 70067
Time elapsed: 15 minute(s), 20 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 1
Registry Keys Infected: 2
Registry Values Infected: 11
Registry Data Items Infected: 7
Folders Infected: 1
Files Infected: 7

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
C:\WINDOWS\system32\antiwpa.dll (Trojan.I.Stole.Windows) -> Delete on reboot.

Registry Keys Infected:
HKEY_CLASSES_ROOT\CLSID\{020487cc-fc04-4b1e-863f-d9801796230b} (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\antiwpa (Trojan.I.Stole.Windows) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\{020487cc-fc04-4b1e-863f-d9801796230b} (Trojan.FakeAlert) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateWin (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateWin (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices\UpdateWin (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices\UpdateWin (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole\UpdateWin (Worm.Sdbot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Lsa\UpdateWin (Worm.Sdbot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\UpdateWin (Worm.Sdbot) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\OLE\UpdateWin (Worm.Sdbot) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SYSTEM\CurrentControlSet\Control\Lsa\UpdateWin (Worm.Sdbot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Network\UID (Malware.Trace) -> Quarantined and deleted successfully.

Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit (Hijack.UserInit) -> Bad: (C:\WINDOWS\system32\userinit.exe,C:\WINDOWS\system32\ntos.exe,) Good: (userinit.exe) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\ActiveDesktop\NoChangingWallpaper (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\activedesktop\NoChangingWallpaper (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetActiveDesktop (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoActiveDesktopChanges (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoSetActiveDesktop (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoActiveDesktopChanges (Hijack.DisplayProperties) -> Bad: (1) Good: (0) -> Quarantined and deleted successfully.

Folders Infected:
C:\WINDOWS\system32\wsnpoem (Trojan.Agent) -> Quarantined and deleted successfully.

Files Infected:
C:\WINDOWS\system32\wsnpoem\audio.dll (Trojan.Agent) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\wsnpoem\audio.dll.cla (Trojan.Agent) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\wsnpoem\video.dll (Trojan.Agent) -> Quarantined and deleted successfully.
C:\WINDOWS\system32\antiwpa.dll (Trojan.I.Stole.Windows) -> Delete on reboot.
C:\Documents and Settings\Owner\Local Settings\Temp\60325cahp25ca0.exe (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Documents and Settings\Owner\Application Data\config.cfg (Malware.Trace) -> Quarantined and deleted successfully.
C:\Documents and Settings\Owner\Application Data\~tmp.html (Malware.Trace) -> Quarantined and deleted successfully.

Edited by broboze, 05 December 2008 - 05:41 PM.


#7 broboze

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Posted 05 December 2008 - 06:24 PM

And after reboot:

alwarebytes' Anti-Malware 1.31
Database version: 1464
Windows 5.1.2600 Service Pack 2

12/5/2008 3:23:31 PM
mbam-log-2008-12-05 (15-23-31).txt

Scan type: Quick Scan
Objects scanned: 70080
Time elapsed: 13 minute(s), 59 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: 0

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:
(No malicious items detected)

#8 broboze

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Posted 05 December 2008 - 08:52 PM

and 3 hours later the same problem occurs. AVG found the same win32 Heur virus in my temp folder again. Both AVG and Malwarebytes say the machine is clean but it is not.
Next steps?

Edited by broboze, 05 December 2008 - 09:08 PM.


#9 ruby1

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Posted 06 December 2008 - 03:43 AM

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateWin (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateWin (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices\UpdateWin (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices\UpdateWin (Backdoor.Bot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole\UpdateWin (Worm.Sdbot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Lsa\UpdateWin (Worm.Sdbot) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\UpdateWin (Worm.Sdbot) -> Quarantined and deleted successfully.



this post by Quietman7 discusses some of the concerns with the report
http://www.bleepingcomputer.com/forums/ind...st&p=923877



I am aware that the last scan report appears to be clean but I beleive you are infected so, following a change in forum rules and guidelines and ,noting these entries in the report leads me to beleive you will require more specialist help than I am able to give


http://www.bleepingcomputer.com/forums/t/182397/am-i-infected-what-do-i-do-how-do-i-get-help-who-is-helping-me/



I will request further guidance for you :thumbsup:

#10 broboze

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Posted 06 December 2008 - 04:21 PM

Can someone assist me?
I will have to reformat if I cannot get this resolved somehow by monday.
Thanks!

#11 ruby1

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Posted 07 December 2008 - 09:21 AM

The Staff have reviewed this thread and suggest you post an HJT log in the HJT section; however, you will see that that section is extremely busy and, if you wish to regain control of the computer by Monday(?) you may instead choose TO wipe the computer and have a completely clean reinstall of your OS ; Also due to the possiblilty you have had a Back door infection on there you are advised to read this advise by Quietman7

http://www.bleepingcomputer.com/forums/ind...st&p=923877




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