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Was infected by malware, still some lingering effects

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4 replies to this topic

#1 peterthemusician


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Posted 15 January 2013 - 02:44 AM

Thanks all for your help in advance.

Windows XP MCE, SP3

I inherited an old laptop a while ago from a sibling, and rarely used it. Never had any problems, but it apparently never had any virus scan software and I never spent the time to figure it out.

Fast forward to a week ago, when I moved and started using it temporarily as my main computer. Everything started going awry. Here's a list of initial symptoms starting a week ago:

(Note that after these things I attempted preliminary treatment, which I will also list below).

1. Taskbar started reverting to the "classic" toolbar. Though sometimes it didn't fully change the full taskbar, just part of it. If explorer crashed though, it would usually come back as all classic. The Ultramon taskbar on the second monitor was usually affected as well.

2. The "Windows Audio" service kept getting stopped. Therefore system sounds would still play, but attempting to open the mixer would kick back an error.

3. Windows update seemed to have been blocked. I would see the yellow "updates waiting" icon in the system tray, but it would disappear. Manually attempting to run the system update would usually just sit there and not update.

4. Java could not update for some reason. I know an outdated version was installed.

5. Chrome cannot open any web page.

6. System really seemed to chug and lag, despite staying >8% of CPU usage.

So after seeing this stuff happen, these are the steps I took:

1. Installed AVG free, Ad-Aware, and Spybot S&D. Ran scans, and allowed all programs to just remove what it found. Since I didn't expect this stuff to be a big deal, I didn't really pay attention to what was being found, I just kept removing whatever was found. (I attached some log files from avg. The spybot log I found lists no infections, but I have run it several times afterwards).

2. Uninstalled all old java, and manually installed the newest version.

3. Rebooted to safe mode, and repeated most scans, still just removing whatever got caught.

4. Installed Malwarebytes Anti-Malware, and ran scans and removed anything found. (one recent log attached.) I repeated this scan in safe mode as well.

5. Re-ran AVG scan, but it kept saying "Error 0xe0010058" and "Error 0xe0010053" for each thing found.

Results so far:
1. "Windows Audio" still gets disabled. I can go to services.msc and restart the service, open my browser and run audio through it. But the service will still get disabled, and anything opened after the disabling will not see any sound device installed (even though system sounds still play.) Even right now, I can play audio from hulu in Firefox, but the volume control in the taskbar is missing, and going to the "Sounds and Audio Devices Properties" from the control panel says "no audio device." Sound still playing.

2. The taskbar "skin" after the most recent reboot reverted to classic taskbar, but eventually switched back to the regular xp-themed taskbar. The Ultramon taskbar, however, stayed as classic.

3. Windows update icon re-appeared to say it was downloading updates, but afterward when I told it to install them, it listed them out and said they could not be installed.

4. Ad-Aware lists two things in my quarantine folder: trojan.malware (2 traces) and Trojan.Win32.Generic!BT.

5. Chrome still cannot open any web pages. (not sure if this is related, since it existed before these other problems.)

6. Windows no longer as sluggish as it was before, even though it's still at around 8% CPU usage (same as before).

I appreciate any help/guidance anyone can give. Let me know if you have any additional questions or ideas. Thanks for your help and time!


Attached Files

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#2 peterthemusician

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Posted 15 January 2013 - 02:55 AM

After some googling, I ran the Kaspersky TDSS Killer antirootkit utility and it found "rootkit.Win32.tdss.tdl3" in a file called iastor. I am going to "cure" it and reboot.

#3 nasdaq


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Posted 17 January 2013 - 11:20 AM

Hello, Welcome to BleepingComputer.
I'm nasdaq and will be helping you.

If you can please print this topic it will make it easier for you to follow the instructions and complete all of the necessary steps.

Close all programs leaving only HijackThis running. Place a check against each of the following, making sure you get them all and not any others by mistake:

R3 - URLSearchHook: (no name) - {6c97a91e-4524-4019-86af-2aa2d567bf5c} - (no file)
O2 - BHO: &Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn0\yt.dll (file missing)
O2 - BHO: HP Print Enhancer - {0347C33E-8762-4905-BF09-768834316C61} - (no file)
O2 - BHO: NCO 2.0 IE BHO - {602ADB0E-4AFF-4217-8AA1-95DAC4DFA408} - (no file)
O2 - BHO: Symantec Intrusion Prevention - {6D53EC84-6AAE-4787-AEEE-F4628F01010C} - C:\PROGRA~1\COMMON~1\SYMANT~1\IDS\IPSBHO.dll (file missing)
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.1.1309.3572\swg.dll (file missing)
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn0\yt.dll (file missing)
O3 - Toolbar: (no name) - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - (no file)

Click on Fix Checked when finished and exit HijackThis.

Restart the computer normally.

Please download ComboFix from one of these locations:

Link 1
Link 2

* IMPORTANT !!! Save ComboFix.exe to your Desktop

  • Disable your Anti-Virus and Anti-Spyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools
  • Close any open browsers, and all other programs working. Make sure you save your file if working on a document.
  • Do not install any other programs until this if fixed.[/b]
  • Double click on ComboFix.exe & follow the prompts.
  • As part of it's process, ComboFix will check to see if the Microsoft Windows Recovery Console is installed. With malware infections being as they are today, it's strongly recommended to have this pre-installed on your machine before doing any malware removal. It will allow you to boot up into a special recovery/repair mode that will allow us to more easily help you should your computer have a problem after an attempted removal of malware.
  • Follow the prompts to allow ComboFix to download and install the Microsoft Windows Recovery Console, and when prompted, agree to the End-User License Agreement to install the Microsoft Windows Recovery Console.
  • Some Rookit infection may damage your boot sector. The Windows Recovery Console may be needed to restore it. Do not bypass this installation. You may regret it.

**Please note: If the Microsoft Windows Recovery Console is already installed, ComboFix will continue it's malware removal procedures.

Posted Image

Once the Microsoft Windows Recovery Console is installed using ComboFix, you should see the following message:

Posted Image

Click on Yes, to continue scanning for malware.

When finished, it shall produce a log for you. Please include the C:\ComboFix.txt in your next reply.

Note: If you have difficulty properly disabling your protection programs, refer to this link --> http://www.bleepingcomputer.com/forums/topic114351.html

Do not mouse click ComboFix's window while it's running. That may cause it to stall

Note: If after running ComboFix you get this error message "Illegal operation attempted on a registry key that has been marked for deletion." when attempting to run a program all you need to do is restart the computer to reset the registry.

Third party programs if not up to date can be the cause of infiltration an infection.

Please run this security check for my review.

Download Security Check by screen317 from here.
  • Save it to your Desktop.
  • Double click SecurityCheck.exe and follow the onscreen instructions inside of the black box.
  • A Notepad document should open automatically called checkup.txt; please post the contents of that document.

Please download AdwCleaner by Xplode onto your Desktop.
  • Double click on AdwCleaner.exe to run the tool.
  • Click on Search.
  • A log file will automatically open after the scan has finished.
  • Please post the content of that log file with your next answer.
  • You can find the log file at C:\AdwCleaner[Rn].txt (n is a number).

Please post the logs and let me know if the problem persists.

#4 peterthemusician

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Posted 18 January 2013 - 01:22 AM

Thank you for your help, Nasdaq!

So, after running the Kaspersky TDSS Killer, a few of the problems seem to be alleviated, at least somewhat. Toolbar now stays xp "skinned," and the Windows Audio service stays running.

However, earlier today, AVG caught "trojan horse downloader.generic_c.BLU" and removed it (or so it says).

I have completed the steps you instructed, and am attaching the logs below. I thank you once again for your help.


Results of screen317's Security Check version 0.99.57
Windows XP Service Pack 3 x86
Internet Explorer 8
``````````````Antivirus/Firewall Check:``````````````
Windows Firewall Enabled!
AVG Anti-Virus Free Edition 2013
Lavasoft Ad-Aware
Antivirus up to date! (On Access scanning disabled!)
`````````Anti-malware/Other Utilities Check:`````````
Spybot - Search & Destroy
Malwarebytes Anti-Malware version
Java 7 Update 10
Java version out of Date!
Adobe Flash Player 11.5.502.146
Adobe Reader 8 Adobe Reader out of Date!
Mozilla Firefox (18.0)
````````Process Check: objlist.exe by Laurent````````
Ad-Aware AAWService.exe is disabled!
Ad-Aware AAWTray.exe is disabled!
Spybot Teatimer.exe is disabled!
AVG avgwdsvc.exe
Ad-Aware Antivirus AdAwareService.exe
Ad-Aware Antivirus SBAMSvc.exe
`````````````````System Health check`````````````````
Total Fragmentation on Drive C:: 19% Defragment your hard drive soon! (Do NOT defrag if SSD!)
````````````````````End of Log``````````````````````

Attached Files

Edited by nasdaq, 24 January 2013 - 09:55 AM.

#5 nasdaq


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Posted 24 January 2013 - 09:58 AM

Sorry for this long delay.

If you are still with me lets continue.

Secure your system by updating 3rd party programs.

Your version of Java is outdated and needs to be updated to take advantage of fixes that have eliminated security vulnerabilities.

Be careful not to install malware posing as Java update!
Important read this blog.

Quoted from the page.
"In light of the recent events surrounding Java, users must seriously consider their use of Java. Do they really need it? If yes, make sure that users follow the steps we recommended and get the security update directly from the official oracle website." at:

How to disable Java in your browsers

You can manually check your present version and update as recommended.

If present remove the old version(s) of Java using the Add/Remove Programs applet.

Java 7 Update 10

Java 7 update 10 introduced important new security controls
You can read about it here.

Get the latest version of the Adobe Reader.
Before your download I suggest you unckeck the box on the top right "Yes, install McAfee Security Scan Plus - optional" this is not required if you are not a McAfee subscriber. While the installation is in progress you can also deny the installation of any other programs that may be suggested.

When installed remove your old version of the Reader using the Add/Remove Programs applet if present.

Remove the AdWare, PUP (Potentially Unwanted Program) installed on your computer.

  • Close all open programs and internet browsers.
  • Double click on AdwCleaner.exe to run the tool.
  • Click on Delete.
  • Everything that was found will be deleted.
  • Follow the prompts to reboot the computer. A text file will open after the restart.
  • Please post the content of that log file with your next answer.
  • You can find the log file at [b]C:\AdwCleaner[Sn].txt (n is a number)..

Please post the logs and let me know what problem persists.

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