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Rootkit Zero Access


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6 replies to this topic

#1 joe2k1

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Posted 20 November 2011 - 11:39 AM

I have a Windows XP SP 3 Home Edition that is infected with the Rootkit Zero Access. After multiple attempts running Sophos, MalawareBytes all came clean, the Wireless/Wired Network stopped working. I was told to try a number of tcp/ip stack fixes. None of these worked. I tried the last resort, combofix. Although all logs seem to indicate the infection is gone, I still do not have any internet connectivitiy. I get 0.0.0.0 in ipconfig. I am going to attach the combofix logs. I really want to avoid a reformat, but can anyone please comment on this zero access infection?

Edit 1: I should mention that the DHCP Client Service is will not start. I was able to figure out that NetTCP was missing which is related to the DHCP Client Service. It was suggested that I get that .dll from another Windows XP machine and see if that solves the problem.

Edited by joe2k1, 20 November 2011 - 12:09 PM.


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#2 Orange Blossom

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Posted 20 November 2011 - 01:18 PM

Hello,

Please follow the instructions in ==>This Guide<== starting at step 6.

Once the proper logs are created, then post them in a reply to this topic by using the Add Reply button. Since you have run ComboFix, please include the ComboFix log in the reply.

If you can produce at least some of the logs, then please create the post and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the reply and explain that you followed the Prep. Guide, include the information that you were unable to produce the other logs, include the ComboFix log, and describe what happens when you try to create the other logs.

Please note that I am not a member of the Malware Removal Team and will not be assisting you in removing the infection. I'm simply helping you to post the information they need in order to assist you.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.

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

Orange Blossom

An ounce of prevention is worth a pound of cure

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#3 joe2k1

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Posted 20 November 2011 - 05:14 PM

Thank you so much for your prompt response. I apolgoize for misunderstanding the instructions for posting logs from my rootkit infection. I have followed the instructions from step 6. I have zipped my log files for inspection by one of the volunteers. Can't wait to hear what the problem might be! Thanks again!Attached File  log files.zip   13.04KB   11 downloads

#4 HelpBot

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Posted 25 November 2011 - 11:40 AM

Hello and welcome to Bleeping Computer!

I am HelpBot: an automated program designed to help the Bleeping Computer Staff better assist you! This message contains very important information, so please read through all of it before doing anything.

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.

To help Bleeping Computer better assist you please perform the following steps:

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Posted Image In order to continue receiving help at BleepingComputer.com, YOU MUST tell me if you still need help or if your issue has already been resolved on your own or through another resource! To tell me this, please click on the following link and follow the instructions there.

CLICK THIS LINK >>> http://www.bleepingcomputer.com/logreply/428630 <<< CLICK THIS LINK



If you no longer need help, then all you needed to do was the previous instructions of telling me so. You can skip the rest of this post. If you do need help please continue with Step 2 below.

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Posted Image If you still need help, I would like you to post a Reply to this topic (click the "Add Reply" button in the lower right hand of this page). In that reply, please include the following information:

  • If you have not done so already, include a clear description of the problems you're having, along with any steps you may have performed so far.
  • A new DDS and GMER log. For your convenience, you will find the instructions for generating these logs repeated at the bottom of this post.
    • Please do this even if you have previously posted logs for us.
    • If you were unable to produce the logs originally please try once more.
    • If you are unable to create a log please provide detailed information about your installed Windows Operating System including the Version, Edition and if it is a 32bit or a 64bit system.
    • If you are unsure about any of these characteristics just post what you can and we will guide you.
  • Please tell us if you have your original Windows CD/DVD available.
  • Upon completing the above steps and posting a reply, another staff member will review your topic and do their best to resolve your issues.

Thank you for your patience, and again sorry for the delay.

***************************************************

We need to see some information about what is happening in your machine. Please perform the following scan again:

  • Download DDS by sUBs from one of the following links if you no longer have it available. Save it to your desktop.
  • Double click on the DDS icon, allow it to run.
  • A small box will open, with an explanation about the tool. No input is needed, the scan is running.
  • Notepad will open with the results.
  • Follow the instructions that pop up for posting the results.
  • Close the program window, and delete the program from your desktop.
Please note: You may have to disable any script protection running if the scan fails to run. After downloading the tool, disconnect from the internet and disable all antivirus protection. Run the scan, enable your A/V and reconnect to the internet.

Information on A/V control HERE


We also need a new log from the GMER anti-rootkit Scanner.

Please note that if you are running a 64-bit version of Windows you will not be able to run GMER and you may skip this step.

Please first disable any CD emulation programs using the steps found in this topic:

Why we request you disable CD Emulation when receiving Malware Removal Advice


Then create another GMER log and post it as an attachment to the reply where you post your new DDS log. Instructions on how to properly create a GMER log can be found here:

How to create a GMER log


As I am just a silly little program running on the BleepingComputer.com servers, please do not send me private messages as I do not know how to read and reply to them! Thanks!

#5 nasdaq

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Posted 26 November 2011 - 09:57 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.
===

I checked your logs and they are clean.

Try these fixes.

Go start > run box and type cmd and hit OK
type
ipconfig /flushdns <-- (The space between g and / is needed)

repeat with
ipconfig /renew

Then hit Enter, type Exit, hit Enter
===

Download LSPfix to a CD or Flash drive using a good computer.
Copy the file to the desktop of the problem computer.
Unzip the file to a folder on your desktop.
Double-click to run
Select: (Advanced) "I know what I'm doing"
Then click the FINISH button. Restart your computer.
===

If still no internet connection run the fix tool found on this Microsoft article.
http://support.microsoft.com/kb/811259
Note if you are not on the computer that has the problem, save the Fix it solution to a flash drive or a CD and then run it on the computer that has the problem.
===

Last but not least:

"Ipconfig" command reports IP address 0.0.0.0
http://support.microsoft.com/kb/822123

Follow the directives.

===

Keep me posted.

#6 joe2k1

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Posted 26 November 2011 - 11:32 AM

Hello,

Thank you for your prompt reply! I have followed your instructions and had trouble with each step. I believe I had already ran that fix it previously. I have taken extensive screenshots for you.

First Screenshot is the ipconfig commands:
Posted Image

Second Screenshot is when I run the LSPfix, which I assume is some kind of registry fix?
Posted Image

Third Screenshot is when I go to see if the DHCP service is running.
Posted Image

This final screenshot is the error I get when I run the fix it. Notice that there is an issue with one of the DLL
Posted Image

My firewall is off, the onboard NIC is working fine, and the DHCP registry entry is correct.

In order to save time you can help others, should I just reformat?

Thanks so much!

#7 nasdaq

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Posted 27 November 2011 - 09:08 AM

I suggest you start a new topic in this forum. Internet connection is not my forte.
A more knowledgeable person in that field may be able to help you.

http://www.bleepingcomputer.com/forums/forum21.html




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