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DNSChanger keeps coming back


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3 replies to this topic

#1 looks fishy

looks fishy

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Posted 11 July 2010 - 03:33 PM

Sorry, I had run these scans before I found this forum. I need your expert help.
Windows XP with svc pack 3 and all updates. I have been able to get around the malware by running a scan, deleting the infections and corrupt files, but they return at every start up.
Latest routine I did was this:
ComboFix, then re start; Temp File Cleaner; Malwarebytes, then re-start. Infection still returns.
Thursday, AV suite suddenly loaded, I received several cmd line boxes that looked strange and then all Google searches got redirected to shopping sites. Other symptoms are standard stuff, have to re-name anti malware to get it to run, several tries to go to correct site from google, etc.
TDSSkiller has been run, GEMR has been run; ComboFix has been run multiple times (logs saved and available); Malwarebytes run multiple time (logs available)

ComboFix shows
Infected
c:\winnt\system32\ernel32.dll
c:\winnt\system32\spool\prtprocs\w32x86\17931u.dll
c:\winnt\system32\spool\prtprocs\w32x86\5w555.dll

MalWareBytes shows
Registry Data Items Infected:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\DhcpNameServer (Trojan.DNSChanger) -> Data: 93.188.162.221,93.188.166.201 -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\NameServer (Trojan.DNSChanger) -> Data: 93.188.162.221,93.188.166.201 -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{d1b85f93-a845-441e-a2f1-ecd8b25f851c}\DhcpNameServer (Trojan.DNSChanger) -> Data: 93.188.162.221,93.188.166.201 -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\Interfaces\{d1b85f93-a845-441e-a2f1-ecd8b25f851c}\NameServer (Trojan.DNSChanger) -> Data: 93.188.162.221,93.188.166.201 -> Quarantined and deleted successfully.
I have the entire logs, just waiting until they are requested.
They just keep returning. The IP address listed in in the Ukraine??

This is beyond my home computer expertise. Any help will be appreciated. I am standing by to follow your instructions to get rid of this.
thanks

Edited by looks fishy, 11 July 2010 - 03:34 PM.


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#2 gringo_pr

gringo_pr

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Posted 15 July 2010 - 12:28 PM

Hello and Welcome to the forums!

My name is Gringo and I'll be glad to help you with your computer problems.

Somethings to remember while we are working together.
  1. Do not run any other tool untill instructed to do so!
  2. Please Do not Attach logs or put in code boxes.
  3. Tell me about any problems that have occurred during the fix.
  4. Tell me of any other symptoms you may be having as these can help also.
  5. Do not run anything while running a fix.

In the upper right hand corner of the topic you will see a button called Options. If you click on this in the drop-down menu you can choose Track this topic. By doing this and then choosing Immediate E-Mail notification and then clicking on Proceed you will be advised when we respond to your topic and facilitate the cleaning of your machine.

We apologize for the delay in responding to your request for help. Here at Bleeping Computer we get overwhelmed at times, and we are trying our best to keep up. Please note that your topic was not intentionally overlooked. Our mission is to help everyone in need, but sometimes it takes just a little longer to get to every request for help. No one is ignored here.

In order for me to see the status of the infection I will need a new set of logs to start with.

Please print out or make a copy in notpad of any instructions given, as sometimes it is necessary to go offline and you will lose access to them.

DeFogger:
    Please download DeFogger to your desktop.

    Double click DeFogger to run the tool.
    • The application window will appear
    • Click the Disable button to disable your CD Emulation drivers
    • Click Yes to continue
    • A 'Finished!' message will appear
    • Click OK
    • DeFogger may ask you to reboot the machine, if it does - click OK
    Do not re-enable these drivers until otherwise instructed.

Download DDS:
    Please download DDS by sUBs from one of the links below and save it to your desktop:


    Download DDS and save it to your desktop

    Link1
    Link2
    Link3

    Please disable any anti-malware program that will block scripts from running before running DDS.
    • Double-Click on dds.scr and a command window will appear. This is normal.
    • Shortly after two logs will appear:
      • DDS.txt
      • Attach.txt
    • A window will open instructing you save & post the logs
    • Save the logs to a convenient place such as your desktop
    • Copy the contents of both logs & post in your next reply

Scan With RKUnHooker
  • Please Download Rootkit Unhooker Save it to your desktop.
  • Now double-click on RKUnhookerLE.exe to run it.
  • Click the Report tab, then click Scan.
  • Check (Tick) Drivers, Stealth,. Uncheck the rest. then Click OK.
  • Wait till the scanner has finished and then click File, Save Report.
  • Save the report somewhere where you can find it. Click Close.
Copy the entire contents of the report and paste it in a reply here.

Note** you may get this warning it is ok, just ignore

"Rootkit Unhooker has detected a parasite inside itself!
It is recommended to remove parasite, okay?"


information and logs:
    In your next post I need the following
      1.logs from DDS
      2.RKUnHooker
      3.let me know of any problems you may have had

Gringo


I Close My Topics If You Have Not Replied In 5 Days If You Will Be Longer Please Let Me Know

If I Have Not Replied To One Of My Topics In 48 Hrs Please Bump The Topic



My help is free, however, if you wish to make a small donation to show your appreciation or to help me continue the fight against Malware, then click here -->btn_donate_SM.gif<-- Don't worry every little bit helps.

Proud Graduate Of Malware Removal University

#3 looks fishy

looks fishy
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Posted 15 July 2010 - 02:59 PM

Thanks, but things are fixed. I muddled through using info from this and other sites. Scan,clean, examine logs: scan, clean, examine logs; etc. Finally isolated an unknown process that was apparently using my spool directory and spoolsrv. Anyway, thanks for all the good info.
david

#4 gringo_pr

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Posted 15 July 2010 - 03:06 PM

Thanks for letting me know thumbup2.gif



Gringo
I Close My Topics If You Have Not Replied In 5 Days If You Will Be Longer Please Let Me Know

If I Have Not Replied To One Of My Topics In 48 Hrs Please Bump The Topic



My help is free, however, if you wish to make a small donation to show your appreciation or to help me continue the fight against Malware, then click here -->btn_donate_SM.gif<-- Don't worry every little bit helps.

Proud Graduate Of Malware Removal University




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