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Computer Acting weird, may be infected


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5 replies to this topic

#1 mindless2

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Posted 22 April 2009 - 01:18 PM

Hi,

My computer has been acting funny lately. It will randomly lock up (I can move the mouse, but nothing can be clicked on, ctrl - alt - delete does not bring up task manager, etc) and when I do a google search, I will click on the results and sometime it will redirect me to a different website. I have to go back and re-click it to get it to go to my intended page.

Because I get redirected when I click on links I have a feeling my computer is infected. I have run spybot, but I had to rename it to SpybotSD1.exe so it would run (when it was named SpybotSD.exe it would not run, no program window would come up). It removed some things.

What can I do? Running Windows XP Media Center sp2.

Thanks

Edited by mindless2, 22 April 2009 - 01:19 PM.


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#2 xblindx

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Posted 22 April 2009 - 03:04 PM

Definitely sounds like an infection.
(If you have issues installing or running the programs, rename the file to something such as wooo.bat or another name with either a .bat or .exe extension)

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 include the following in your reply:
MBAM log file

Edited by xblindx, 22 April 2009 - 03:04 PM.


#3 mindless2

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Posted 22 April 2009 - 07:39 PM

Here is my log file. I had to rename mbam.exe to mbam1.exe so it would run. I did not have to rename the installer.

Malwarebytes' Anti-Malware 1.36
Database version: 2029
Windows 5.1.2600 Service Pack 2

4/22/2009 7:37:51 PM
mbam-log-2009-04-22 (19-37-51).txt

Scan type: Quick Scan
Objects scanned: 85189
Time elapsed: 6 minute(s), 32 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 3
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 1

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Settings\bf (Trojan.Agent) -> Delete on reboot.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Settings\bk (Trojan.Agent) -> Delete on reboot.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Settings\iu (Trojan.Agent) -> Delete on reboot.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\WINDOWS\system32\gxvxccounter (Trojan.DNSchanger) -> Quarantined and deleted successfully.


I renamed mbam1.exe back to mbam.exe and tried to run it, but it did not run. It appears that that redirect issue was fixed (and from looking at the log there was a file that was deleted that looks like it would do that), but sites are still being redirected from google searches.

Edited by mindless2, 22 April 2009 - 07:44 PM.


#4 xblindx

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Posted 22 April 2009 - 07:45 PM

Hate to be the bearer of bad news, but

These items are part of a very nasty rootkit.

IMPORTANT NOTE: One or more of the identified infections was related to a rootkit component. Rootkits and backdoor Trojan are very dangerous because they use advanced techniques (backdoors) as a means of accessing a computer system that bypasses security mechanisms and steal sensitive information which they send back to the hacker. Many rootkits can hook into the Windows 32-bit kernel, and patch several APIs to hide new registry keys and files they install. Remote attackers use backdoor Trojans and rootkits as part of an exploit to gain unauthorized access to a computer and take control of it without your knowledge.

If your computer was used for online banking, has credit card information or other sensitive data on it, all passwords should be changed immediately to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised. They should be changed by using a different computer and not the infected one. If not, an attacker may get the new passwords and transaction information. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?

Although the rootkit was identified and removed, your PC has likely been compromised and there is no way to be sure the computer can ever be trusted again. It is dangerous and incorrect to assume that because the rootkit has been removed the computer is now secure. In some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired. The malware may leave so many remnants behind that security tools cannot find them. Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Please read:

? "When should I re-format? How should I reinstall?"
? "Help: I Got Hacked. Now What Do I Do?"
? "Where to draw the line? When to recommend a format and reinstall?"

Please read DaChew's post here and then read this: http://www.bleepingcomputer.com/forums/t/34773/preparation-guide-for-use-before-using-malware-removal-tools-and-requesting-help/

#5 mindless2

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Posted 22 April 2009 - 10:49 PM

Ok, well it looks like I will try posting in the HJT section of the site. Thanks for your help in helping to find out what was causing this and narrowing it down.

Here are the results from the RootRepeal program:

ROOTREPEAL © AD, 2007-2008
==================================================
Scan Time: 2009/04/22 22:46
Program Version: Version 1.2.3.0
Windows Version: Windows XP Media Center Edition SP2
==================================================

Hidden/Locked Files
-------------------
Path: C:\hiberfil.sys
Status: Locked to the Windows API!

Path: C:\WINDOWS\system32\gxvxccounter
Status: Invisible to the Windows API!

Path: C:\WINDOWS\system32\gxvxcyncufmkpsvqredfkgwmwjidbngbldlcn.dll
Status: Invisible to the Windows API!

Path: C:\Program Files\Yahoo! Games\Monopoly Here & Now Edition\Monopoly.exe:{EB2FABD9-FA31-9A07-E885-B74FDA7D4791}
Status: Visible to the Windows API, but not on disk.

Path: C:\WINDOWS\system32\drivers\tfqivgfd.dat
Status: Locked to the Windows API!

Path: C:\WINDOWS\system32\drivers\gxvxcjaqnncksuvbrdelftbimvofwusafyquh.sys
Status: Invisible to the Windows API!

Path: C:\WINDOWS\system32\drivers\jpufjmcg.dat
Status: Locked to the Windows API!

Path: C:\Documents and Settings\user\Local Settings\Temp\etilqs_L6V0icHWMANcs6VOZbCg
Status: Allocation size mismatch (API: 32768, Raw: 0)

Path: C:\WINDOWS\system32\LogFiles\WUDF\WUDFTrace.etl
Status: Allocation size mismatch (API: 8192, Raw: 4096)



#6 Orange Blossom

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Posted 22 April 2009 - 11:42 PM

Hello mindless2,

Now that you have a topic posted here: http://www.bleepingcomputer.com/forums/t/221682/infected-w-a-rootkit-gxvxccounter/ you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the HJT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond. Please be patient. It may take a while to get a response but your log will be reviewed and answered as soon as possible

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom :thumbsup:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

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