DNSChanger virus

June 13, 2009 at 17:47:33
Specs: Microsoft Windows XP Home Edition, 2.009 GHz / 2559 MB
Well, it seems I have a DNSChanger virus after some research. Whenever I click links in Google (or other search engines) in any of my browsers, searchtracker.net redirects me somewhere else.

I've tried Hi-jack this, Malwarebytes, and CCleaner...found the virus, removed...and it's there again.

I'm not sure if Clicksor is part of the package, but I'm also getting those pop-ups a lot, along with other random pop-ups while browsing.

So, I'd deeply appreciate some help to removing this problem, before I resort to re-formatting my hard drive.


See More: DNSChanger virus

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June 13, 2009 at 17:56:41

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June 13, 2009 at 18:14:43
Well, a few scans back it detected and I removed the DNSchanger. However, it definitely is still there. My Malwarebytes log comes up all clean:

Malwarebytes' Anti-Malware 1.37
Database version: 2273
Windows 5.1.2600 Service Pack 3

6/13/2009 9:13:59 PM
mbam-log-2009-06-13 (21-13-59).txt

Scan type: Full Scan (C:\|)
Objects scanned: 232768
Time elapsed: 39 minute(s), 8 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)

Definitely still a problem though, hah.

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June 13, 2009 at 18:20:58
Note: I can help you remove virus manually. Please avoid installing/uninstalling or updating any programs and attempting any unsupervised fixes or scans. This can make helping you impossible. First Track this topic. Then follow:

1) Can you please post your AVZ log:
Note: Run AVZ in windows normal mode. If avz.exe doesn't start, then try to rename the file avz.exe to something else and try to run it again. Make sure you have your web browser open in background before following the steps below.

i) To create the logfile, download AVZ by clicking HERE. Please save this file to your desktop or "My Documents" folder.

ii) Next, unpack the file to a new folder using the Compressed (zipped) folders wizard built into Windows XP/Vista, or a zip utility of your choice.

iii) Once you have unpacked the contents of the zip archive, please launch the file AVZ.exe by double clicking on it or right clicking and selecting Open.
Note: If you are running Windows vista launch AVZ.exe by right clicking and selecting Run as Administrator.

You should now see the main window of the AVZ utility. Please navigate to File->Custom Scripts. Copy the script below by using the keyboard shortcut CTRL+C or the corresponding option via right click.


Paste the script into the execution window by using CTRL+V keyboard shortcut, or the "paste" option via the right click menu. Click on Run to run the script, the PC will reboot. After the reboot the LOG subfolder is created in the folder with AVZ, with a file called virusinfo_syscure.zip inside. Upload that file to rapidshare.com and paste the link here.

Image Tutorial

2) Download and Run DDS which will create a Pseudo HJT Report as part of its log: DDS Tool Download Link. When done, DDS will open two (2) logs

   1. DDS.txt
   2. Attach.txt

Upload the logs to rapidshare.com and paste download link in your next reply.
Note: Disable any script-blocking programs and then double-click on the DDS.scr icon to start the program. If you did not disable a script-blocker that may be part of your antimalware program, you may receive a warning from your antimalware product asking if you would like DDS.scr to run. Please allow it to do so.

If I'm helping you and I don't reply within 24 hours send me a PM.

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June 13, 2009 at 22:05:03
Alright, here are the items you requested:



Thank you for your help thus far.

On a side note, I've noticed that in addition to Clicksor being everywhere, sites that display adds now display much more....well, profane adds. I'm not sure if this is all connected, but I know the additional information can't hurt.

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June 14, 2009 at 06:44:04
Follow these Steps in order numbered. Don't proceed to next step unless you have sucessfully completed previous step:

1) Run this script in AVZ like before, your computer will reboot:

SearchRootkit(true, true);

2) After reboot execute following script in AVZ:


A file called quarantine1.zip should be created in C:\.

3) Attach a Combofix log, please review and follow these instructions carefully.

Download it here -> http://download.bleepingcomputer.co...

Before Saving it to Desktop, please rename it to something like 123.exe to stop malware from disabling it.

Now, please make sure no other programs are running, close all other windows and pause Antivirus/Sypware programs (http://www.bleepingcomputer.com/forums/topic114351.html Programs to disable) until after the scanning and removal process has taken place.

Please double click on the file you downloaded. Follow the onscreen prompts to start the scan. Once the scanning process has started please DO NOT click on the Combofix window or attempt to use your computer as this can cause the scanning process to stall. It may take a while to complete scanning and this is normal.

You will be disconnected from the internet and your desktop icons/toolbars will disappear during scanning, do not worry, this is normal and it will be restored after scanning has completed.

Combofix will create a logfile and display it after your computer has rebooted. Usually located in c:\combofix.txt, please upload that file to rapidshare.com and paste the link here.

If I'm helping you and I don't reply within 24 hours send me a PM.

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June 14, 2009 at 10:40:08
Here ya go:

I disabled all my antivirus and such like I was instructed, but Combofix rebooted...and I was unable to disable my antivirus once it restarted. I hope this did not mess up my log.

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June 14, 2009 at 10:48:55
Once it restart it doesn't matter :). Follow these Steps in order numbered. Don't proceed to next step unless you have sucessfully completed previous step:

1) Please zip up C:\qoobox\quarantine and upload it and C:\quarantine1.zip to a filehost such as http://rapidshare.com/ Then, Private Message me the Download link to the uploaded file.

2) Lastly, uninstall Combofix by: pause Antivirus/Sypware programs (http://www.bleepingcomputer.com/forums/topic114351.html Programs to disable) > Start > run > type combofix /u > ok. Or Start > run > type 123 /u > ok.

If I'm helping you and I don't reply within 24 hours send me a PM.

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June 14, 2009 at 11:55:25
Done and Done. Send the PM, uninstalled Combofix.

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June 14, 2009 at 12:51:11
Thanks for the files. Please follow these steps in order numbered and post summary log after each step.

1) If you use Windows System restore, turn it off > reboot. How to turn it off/on: http://support.kaspersky.com/faq/?q... Run a full scan with:

Download and run Kaspersky AVP tool: http://devbuilds.kaspersky-labs.com...
Once you download and start the tool:

# Check below options:

    * Select all the objects/places to be scanned. 
    * Settings > Customize > Heuristic analyzer > Enable deep rootkit search

# Click Scan
# Fix what it detects
# Attach Scan log/Summary to your next message.

Illustrated tutorial: http://img32.imageshack.us/img32/76...

Note: Turn system restore back on, if you wish; this to remove malware from system volume information files.

2) House cleaning. Run full Scan with SuperAntispyware : http://www.superantispyware.com/dow... . Fix what it detects and post summary scan log.

3) http://onecare.live.com/site/en-Us/... (No log required)

4) http://onecare.live.com/site/en-Us/... (No log required)

If I'm helping you and I don't reply within 24 hours send me a PM.

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June 16, 2009 at 13:54:59
Sorry for the delay, I was away from home for a day.

I was able to create a log for the Kaspersky scan, but for some reason it is decent sized and won't upload to rapidshare.com.

Also, I was unable to find the option with SuperAntispyware to create a log....so unfortunately I can't provide either.

However, my problems do seem to have been removed, but if there are any more scans I should run, I wouldn't definitely be willing to do them.

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June 16, 2009 at 14:03:46
Its ok as long as your problem is solved.

If I'm helping you and I don't reply within 24 hours send me a PM.

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