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#1 eriatarka1

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Posted 11 September 2009 - 06:48 AM

Right, so having fixed a google redirect (overclick.cn) virus on this computer a couple of months back, I got the computer back to working normally.

Unfortunately this isn't the case anymore.

It started off with a BSOD about a driver - it flashed up very quickly and I couldn't catch it.

I tried to catch it by unchecking automatic restart after a BSOD, but what came up was different (and equally unexpectedly timed) - it was an IRQL_NOT_LESS_OR_EQUAL error (stop 0x0A)

That was it for a day - and I didn't think any more of it.

I did find a.exe in my system32 folder, which I deleted, and then using msconfig removed it from autostarting. However soon afterwards I ended up with AVG telling me I had b.exe, which was a trojan horse Generic14.AQVW (according to AVG).

Since then it's only been getting odder. I've tried to run autoruns to discover what is happening at startup, but received a message saying I didn't have the right permissions. The same happened for MBAM, even after I renamed the file. I haven't tried anything else.

Worst of all, the September Malicious Software Removal Tool from Microsoft isn't installing properly - it downloads but doesn't install (with no error message).

It seems to have disabled AVG's email scanner as well - I'm not sure of the relevance of that.

Thanks for all and any help you can give.

Robert

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#2 quietman7

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Posted 11 September 2009 - 07:31 AM

It appears you have a new rootkit infection that has become quite pervasive. The rootkit itself is a protection module used to terminate a variety of security programs so the scans will not work. Disinfection will require the use of more powerful tools than we recommend in this forum. Before the computer can be need you to create and post a DDS/HijackThis log for further investigation.

Please read the pinned topic titled "Preparation Guide For Use Before Posting A Hijackthis Log". If you cannot complete a step, then skip it and continue with the next. In Step 6 there are instructions for downloading and running DDS which will create a Pseudo HJT Report as part of its log.

When you have done that, post your log in the HijackThis Logs and Malware Removal forum, NOT here, for assistance by the HJT Team Experts. A member of the Team will walk you through, step by step, on how to clean your computer. If you post your log back in this thread, the response from the HJT Team will be delayed because your post will have to be moved. This means it will fall in line behind any others posted that same day.

Start a new topic, give it a relevant title and post your log along with a brief description of your problem, a summary of any anti-malware tools you have used and a summary of any steps that you have performed on your own. An expert will analyze your log and reply with instructions advising you what to fix. After doing this, we would appreciate if you post a link to your log back here so we know that your getting help from the HJT Team.

Please be patient. It may take a while to get a response because the HJT Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT "bump" your post or make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.

IMPORTANT NOTE: Rootkits, backdoor Trojans, Botnets, and IRCBots are very dangerous because they compromise system integrity by making changes that allow it to by used by the attacker for malicious purposes. Rootkits are used by Trojans to conceal its presence (hide from view) in order to prevent detection of an attacker's software and make removal more difficult. Many rootkits can hook into the Windows 32-bit kernel, and patch several APIs to hide new registry keys and files they install. They can disable your anti-virus and security tools to prevent detection and removal. Remote attackers use backdoors as a means of accessing and taking control of a computer that bypasses security mechanisms. This type of exploit allows them to steal sensitive information like passwords, personal and financial data which is send back to the hacker. To learn more about these types of infections, you can refer to:If your computer was used for online banking, has credit card information or other sensitive data on it, you should stay disconnected from the Internet until your system is fully cleaned. All passwords should be changed immediately to include those used for banking, email, eBay, paypal and online forums. You should consider them to be compromised and change each password using a clean computer, not the infected one. If not, an attacker may get the new passwords and transaction information. If using a router, you need to reset it with a strong logon/password so the malware cannot gain control before connect again. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read:Although the infection has been identified and may be removed, your PC has likely been compromised and there is no way to be sure the computer can ever be trusted again. It is dangerous and incorrect to assume the computer is secure even if the malware appears to have been removed. In some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired so you can never be sure that you have completely removed a rootkit. The malware may leave so many remnants behind that security tools cannot find them. Tools that claim to be able to remove rootkits cannot guarantee that all traces of it will be removed. Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Please read:

Edited by quietman7, 11 September 2009 - 07:32 AM.

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#3 eriatarka1

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Posted 11 September 2009 - 08:31 AM

Right, I tried to follow that, I started dds.scr, and though it started up, it stopped before producing a log.

I decided to boot into safe mode but that didn't help matters. Root Repeal started up and actually even started scanning - though all it mentioned before it stopped was that C:\Windows\System32\eventlog.dll was locked to the Windows API.

Not sure if that helps at all.

Honestly, since I can't get any of this to run, is it time for a reformat and reinstall? I don't want anyone to get my hopes up on this, and I'm prepared for it to happen.

Thanks,

Robert

#4 quietman7

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Posted 11 September 2009 - 08:57 AM

it mentioned before it stopped was that C:\Windows\System32\eventlog.dll was locked to the Windows API.

That's typical of this infection.

Please download Win32kDiag.exe by AD and save it to your desktop.
alternate download 1
alternate download 2
  • This tool will create a diagnostic report for me to review.
  • Double-click on Win32kDiag.exe to run and let it finish.
  • When it states Finished! Press any key to exit..., press any key on your keyboard to close the program.
  • A file called Win32kDiag.txt should be created on your Desktop.
Go to Posted Image > Run..., then copy and paste this command into the open box: cmd
Click OK.
At the command prompt C:\>, copy and paste the following command and press Enter:
DIR /a/s %windir%\scecli.dll %windir%\netlogon.dll %windir%\ntelogon.dll >Log.txt & START notepad Log.txt
A file called log.txt should be created on your Desktop.

Start your new topic in the HJT forum and be sure to mention that you tried to follow the Prep Guide but were unable to get DDS to run.

Post the entire contents of both logs created by following my directions above. The HJT Team will know what to do.

Honestly, since I can't get any of this to run, is it time for a reformat and reinstall?

Your decision as to what action to take should be made by reading and asking yourself the questions presented in the "When should I re-format?" and What Do I Do? links previously provided. As I already said, in some instances an infection may leave so many remnants behind that security tools cannot find them and your system cannot be completely cleaned, repaired or trusted. Wiping your drive, reformatting, and performing a clean install of the OS or doing a factory restore with a vendor-specific Recovery Disk or Recovery Partition removes everything and is the safest action but I cannot make that decision for you.

Edited by quietman7, 11 September 2009 - 08:58 AM.

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