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Clbdriver.sys - I Think

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#1 laphan


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Posted 30 May 2008 - 06:55 AM

Hi All

My cousin bought a nice spec PC off somebody cos they said they didn't need it anymore and then he asked me to install his supplied Nero disc on it so that he could use a new external DVD writer that he'd bought - big mistake for me!

The machine is a WinXP Home HP PC and was running like a pig, even though it doesn't have much on, P4 2.4GHz proc, 800MB-ish, etc. On closer inspection I found that Google pages didn't go where I wanted them to go, pop-ups relating to Antispywaremaster keep coming up, couldn't get to Task Manager or RegEdit and so on.

My usual tactic is download Kaspersky's trial, get the latest pattern file, boot up in safe mode, scan/fix and everything's rosy - however!

Couldn't install kaspersky 7 trial at all wouldn't run up after install. When I did manage to jump start it, couldn't get the update file even though I could get out onto the Internet OK. Scanned with the supplied pattern file, which found about 9 issues but was still getting all the grief.

Ran the standard regedit/task manager reg files off the net to get the access back.

Uninstalled Kaspersky, install AVG 8 - still had the same problems, couldn't get the latest pattern files so only picking up the 'child' crap not the mother.

Uninstalled AVG 8, re-installed Kaspersky, downloaded the latest pattern file on another machine and did a local/manual update to get it up to 29-5-08. Ran the scan in safe mode and it keeps finding 6 x clb related files, but can't get rid of them. Keeps saying failed to delete on reboot. I can't disinfect, delete or quarentine any of them.

I've found loads of little tools on the net such as combofix, smit, flash disinfector, etc, but when I double-click to run them nothing happens they don't run. I even tried the drag and drop script method onto combofix, but nothing. Weird thing is I can run other av/as apps such as HijackThis, but there is nothing in this to help me. It seems like every app that can do the business is blocked from doing the job.

I've tried to go into regedit to see if I can do anything manually, but all I get is 'the application has failed to start because clb.dll was not found'.

I tried the sfc /scannow option to try and fix this, but when it asks for a Windows XP Professional Service Pack 2 CD (can't understand why it says Pro when it is Home) I put my XP Pro SP2 CD in, but it says that this is an incorrect CD.


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#2 quietman7


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Posted 30 May 2008 - 07:20 AM

Clbdriver.sys is related to a rootkit component. Rootkits are very dangerous because they use advanced techniques (backdoors) as a means of accessing a computer system that bypasses security mechanisms and steal sensitive information which they send back to the hacker. Many rootkits can hook into the Windows 32-bit kernel, and patch several APIs to hide new registry keys and files they install. Remote attackers use backdoor Trojans and rootkits as part of an exploit to gain unauthorized access to a computer and take control of it without your knowledge.

If your computer was used for online banking, has credit card information or other sensitive data on it, you should immediately disconnect from the Internet until your system is 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. They should be changed by using a different computer and not the infected one. If not, an attacker may get the new passwords and transaction information. Banking and credit card institutions should be notified of the possible security breach. Because your computer was compromised please read How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?

Although the rootkit 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 that because the rootkit has been removed the computer is now secure. 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 "When should I re-format? How should I reinstall?", "Help: I Got Hacked. Now What Do I Do?" and "Reformatting the computer or troubleshooting; which is best?".

Should you decide not to follow that advice, we will do our best to help clean the computer of any infections but we cannot guarantee it to be trustworthy or that the removal will be successful. If you wish to proceed, please do the following.

Please read the pinned topic titled "Preparation Guide For Use Before Posting A Hijackthis Log" and complete all the steps. There are instructions for downloading and running Deckard's System Scanner (DSS) which will create a hijackthis log for you, or automatically download and install the most current version of HijackThis if it's not already installed on your computer.

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.

Some types of malware will disable DSS, HijackThis and other security tools. If DSS will not run, try renaming it. Right-click on the dss.exe file and change the .exe extension to .bat, .com, .pif, or .scr. Example: dss.bat or dss.com and then double-click to run.
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