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Recovered computer after fake antivirus malware now unable to connect to local network


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#1 blzbuh

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Posted 15 October 2011 - 12:18 PM

Hello folks,

I was able to revive my computer after a fake anti virus malware infection followed by a nt_authority shutdown loop but now have lost connection to my local network domain. I connect to the internet and all else seems to be operating normally.

I have searched for possible fixes and none have worked.

My computer network id and change options are greyed out under the computer name option.

I tried starting the workstation service and it states it is unable to run because of server specific error 2205.

I have also tried cleaning the registry and a chkdsk /r in the recovery console and still cannot seem to reconnect.

Thank you for any help.

Bryan


The DDS scan would hang up about %75 of the way through and freeze the computer so it never completed, I tried disabling my anti virus but had the same result.

Attached is my gmer log.

Attached Files

  • Attached File  Ark.txt   5.51KB   4 downloads


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#2 HelpBot

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Posted 20 October 2011 - 12:20 PM

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.

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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.
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  • 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.

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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:

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#3 blzbuh

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Posted 20 October 2011 - 02:42 PM

Still looking for help.

I am running Windows XP Pro 2002 edition on a 32 bit system.

DDS still hangs up about 75% of the way through freezing my computer.

Attached is a new gmer log.

Thanks for any help.

Attached Files

  • Attached File  Ark.txt   1.18KB   5 downloads


#4 myrti

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Posted 22 October 2011 - 02:07 PM

Hi,

please try running OTL instead in that case:

We need to create an OTL Report
  • Please download OTL from one of the following mirrors:
  • Save it to your desktop.
  • Double click on the Posted Image icon on your desktop.
  • Click the "Scan All Users" checkbox.
  • Push the Posted Image button.
  • Two reports will open, copy and paste them in a reply here:
    • OTL.txt <-- Will be opened
    • Extra.txt <-- Will be minimized

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#5 blzbuh

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Posted 24 October 2011 - 12:21 PM

Thanks!

I tried running the scan several times and keep getting an invalid date error about a minute in.

I have attached a screenshot of the error.

Attached Files



#6 myrti

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Posted 24 October 2011 - 02:52 PM

Hi,

please try running ComboFix instead, let me know if that freezes to:
Please download ComboFix from one of these locations:

Link 1
Link 2

* IMPORTANT !!! Save ComboFix.exe to your Desktop
  • Temporarily disable isable your AntiVirus and AntiSpyware applications. They may otherwise interfere with our tools
    Usually this can be done via a right click on the System Tray icon, check this tutorial for disabling the most common security programs: Link

  • 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.
**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 will produce a log for you. Please include the C:\ComboFix.txt in your next reply.

This tool is not a toy and not for everyday use.
ComboFix SHOULD NOT be used unless requested by a forum helper


If you need help, see this link:
http://www.bleepingcomputer.com/combofix/how-to-use-combofix

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#7 blzbuh

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Posted 24 October 2011 - 04:15 PM

Well, it appeared to have detected a rootkit but I forgot exactly what the pop up said and then it froze.

Something like rootkit.zeroaccess in the tcp/ip stack. The popup stated it was a difficult one to clean.

I rebooted and tried to run again but this time no pop ups just frozen screen.

#8 myrti

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Posted 24 October 2011 - 04:21 PM

Hi,
could you please try running ComboFix from safe mode?

regards myrti

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#9 blzbuh

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Posted 24 October 2011 - 05:24 PM

Frozen again...

#10 myrti

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Posted 24 October 2011 - 05:56 PM

Hi,

please try renaming ComboFix.exe to fun.com in that case and let me know if that helps.

regards myrti

is that a bird?  a plane? nooo it's the flying blueberry!

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#11 blzbuh

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Posted 25 October 2011 - 02:08 PM

Thanks Myrti,

Same result unfortunately.

#12 myrti

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Posted 25 October 2011 - 02:20 PM

Hi,

could you create a live-cd or a bootable flash drive from which to clean your PC, if I gave you the instructions for it? (Meaning do you have a burnable CD or a big enough flash drive (more than 1Gb) and the internet connection to download some larger files.)

regards myrti

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#13 blzbuh

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Posted 25 October 2011 - 03:33 PM

I do indeed. 4 gig flash drive.

#14 myrti

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Posted 25 October 2011 - 03:53 PM

Hi,

please follow these instructions then:

Try this please. You will need a USB drive.

Download http://unetbootin.sourceforge.net/unetbootin-xpud-windows-latest.exe & http://noahdfear.net/downloads/bootable/xPUD/xpud-0.9.2.iso to the desktop of your clean computer
  • Insert your USB drive
  • Press Start > My Computer > right click your USB drive > choose Format > Quick format
  • Double click the unetbootin-xpud-windows-387.exe that you just downloaded
  • Press Run then OK
  • It will install a little bootable OS on your USB
  • After it has completed do not choose to reboot the clean computer simply close the installer
  • Download xPUDtestdisk.exe and save it to the USB device
  • Double click xPUDtestdisk.exe to extract the contents to your USB device
  • Remove the USB and insert it in the sick computer
  • Boot the Sick computer
  • Press F12 and choose to boot from the USB
  • Follow the prompts
  • A Welcome to xPUD screen will appear
  • Press File
  • Expand mnt
  • sda1,2...usually corresponds to your HDD
  • sdb1 is likely your USB
  • Press Tool at the top
  • Choose Open Terminal
  • Type in: dd if=/dev/sda of=MBRbackup.zip bs=512 count=1 and hit Enter.

MBRbackup.zip should be created on your flash drive, please attach it to your next reply.

is that a bird?  a plane? nooo it's the flying blueberry!

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#15 blzbuh

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Posted 25 October 2011 - 05:55 PM

Perhaps I am missing a step with the 2nd file you have to download?




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