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Avast AntiVirus found SKYNEToqbcibak.sys


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#1 cowpuppy

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Posted 10 August 2009 - 06:55 PM

Hi everyone,

I received a virus alert from Windows Security Centre on Vista while browsing.

I quickly disconnected my from the internet, and I ran Avast AntiVirus.

It found something called "SKYNEToqbcibak.sys"...something about a rootkit.

Then it suggested I restart my computer and let it scan my files for me, which it's in the process of doing at the time of posting.

I wasn't able to find anything about this specific file, but I see some threads in this forum with similarly named suspicious files (ie SKYNETabunchofletters.extension) and it seems the general consensus is that this is a really nasty one?

Please help me remove this! Thank you!

P.S. This occurred on my laptop, HP Pavillion dv6000

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#2 boopme

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Posted 10 August 2009 - 07:46 PM

Hello and welcome!.. Please run these..
Next run MBAM (MalwareBytes):

NOTE: Before saving MBAM please rename it to zztoy.exe....now save it to your desktop.

Please download Malwarebytes Anti-Malware and save it to your desktop.

alternate download link 2

MBAM may "make changes to your registry" as part of its disinfection routine. If using other security programs that detect registry changes (ie Spybot's Teatimer), they may interfere or alert you. Temporarily disable such programs or permit them to allow the changes.
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself. Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the definition updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply. Be sure to post the complete log to include the top portion which shows MBAM's database version and your operating system.
  • Exit MBAM when done.
Note: If MBAM encounters a file that is difficult to remove, you will be asked to reboot your computer so MBAM can proceed with the disinfection process. If asked to restart the computer, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.


Next Rootrepeal.
We Need to check for Rootkits with RootRepeal
  • Download RootRepeal from the following location and save it to your desktop.
  • Extract RootRepeal.exe from the archive.
  • Open Posted Image on your desktop.
  • Click the Posted Image tab.
  • Click the Posted Image button.
  • Check all seven boxes: Posted Image
  • Push Ok
  • Check the box for your main system drive (Usually C:), and press Ok.
  • Allow RootRepeal to run a scan of your system. This may take some time.
  • Once the scan completes, push the Posted Image button. Save the log to your desktop, using a distinctive name, such as RootRepeal.txt. Include this report in your next reply, please.

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#3 cowpuppy

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Posted 10 August 2009 - 08:59 PM

whoops

Edited by cowpuppy, 10 August 2009 - 09:02 PM.


#4 cowpuppy

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Posted 10 August 2009 - 09:39 PM

Thanks for the quick reply

MBAM was unable to run after installation, but after renaming the exe I was able to run it. Also, it did not search for updates automatically, and when I manually tried to search for some, the application crashed. Here's the log after scanning:

Malwarebytes' Anti-Malware 1.40
Database version: 2551
Windows 6.0.6000

10/08/2009 10:22:46 PM
mbam-log-2009-08-10 (22-22-46).txt

Scan type: Quick Scan
Objects scanned: 88600
Time elapsed: 5 minute(s), 29 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 3
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 10

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\xpreapp (Malware.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\UAC (Rootkit.Trace) -> Quarantined and deleted successfully.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\net (Trojan.Agent) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\net (Trojan.Downloader) -> Quarantined and deleted successfully.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\Windows\System32\net.net (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Users\M\AppData\Local\Temp\esroxancmw.exe (Trojan.TDSS) -> Quarantined and deleted successfully.
C:\Users\M\AppData\Local\Temp\mrsonwxcae.exe (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Users\M\AppData\Local\Temp\prun.tmp (Trojan.Downloader) -> Quarantined and deleted successfully.
C:\Users\M\AppData\Local\Temp\rasvsnet.tmp (Trojan.TDSS) -> Quarantined and deleted successfully.
C:\Windows\system32\uacinit.dll (Trojan.Agent) -> Delete on reboot.
C:\Windows\System32\SKYNETiiabqjmb.dat (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Windows\System32\SKYNETpbxvsxuo.dat (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Windows\System32\SKYNETgaopscbc.dll (Trojan.Agent) -> Quarantined and deleted successfully.
C:\Windows\System32\SKYNETovlebuce.dll (Trojan.Agent) -> Quarantined and deleted successfully.


I was unable to run RootRepeal properly. This is the error message I get when starting it:

FOPS - DeviceIoControl Error! Error Code = 0xc0000024 Extended Info (0x000000f8)

After that message, it would start. When I tried to scan:

Could not initialize driver! Please contact the author!

Error dumping SSDT (0xc0000024)!

Edited by cowpuppy, 10 August 2009 - 09:41 PM.


#5 boopme

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Posted 10 August 2009 - 09:51 PM

OK, I see the root kit, so we'll use another tool.

Please download Sophos Anti-rootkit & save it to your desktop.
alternate download link
Note: If using the vendor's download site you will be asked to register with MySophos so an email containing an activation link can be sent to your email address.

Be sure to print out and read the Sophos Anti-Rookit User Manual and Release Notes.
  • Double-click sar_15_sfx.exe to begin the installation, read the license agreement and click Accept.
  • Allow the default location of C:\Program Files\Sophos\Sophos Anti-Rootkit and click Install.
  • A message will appear "Sophos Anti-Rootkit was successfully installed. Click 'yes' to start it now".
  • Click Yes and allow the driver and its randomly named .tmp file (i.e. F.tmp) to load if asked.
  • If the scan did not start automatically, make sure the following are checked:
    • Running processes
    • Windows Registry
    • Local Hard Drives
  • Click Start scan.
  • Sophos Anti-Rootkit will scan the selected areas and display any suspicious files in the upper panel.
  • When the scan is complete, a pop-up screen will appear with "Rootkit Scan Results". Click OK to continue.
  • Click on the suspicious file to display more information about it in the lower panel which also includes whether the item is recommended for removal.
    • Files tagged as Removable: No are not marked for removal and cannot be removed.
    • Files tagged as Removable: Yes (clean up recommended) are marked for removal by default.
    • Files tagged as Removable: Yes (but clean up not recommended) are not marked for removal because Sophos did not recognize them. These files will require further investigation.
  • Select only items recommended for removal, then click "Clean up checked items". You will be asked to confirm, click Yes.
  • A pop up window will appear advising the cleanup will finish when you restart your computer. Click Restart Now.
  • After reboot, a dialog box displays the files you selected for removal and the action taken.
  • Click Empty list and then click Continue to re-scan your computer a second time to ensure everything was cleaned.
  • When done, go to Start > Run and type or copy/paste: %temp%\sarscan.log
  • This should open the log from the rootkit scan. Please post this log in your next reply. If you have a problem, you can find sarscan.log in C:\Documents and Settings\\Local Settings\Temp\.
Before performing an ARK scan it is recommended to do the following to ensure more accurate results and avoid common issues that may cause false detections.
  • Disconnect from the Internet or physically unplug you Internet cable connection.
  • Clean out your temporary files.
  • Close all open programs, scheduling/updating tasks and background processes that might activate during the scan including the screensaver.
  • Temporarily disable your anti-virus and real-time anti-spyware protection.
  • After starting the scan, do not use the computer until the scan has completed.
  • When finished, re-enable your anti-virus/anti-malware (or reboot) and then you can reconnect to the Internet.

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#6 cowpuppy

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Posted 10 August 2009 - 10:26 PM

Problem:

Before I follow those steps, MBAM seems to be unable to remove uacinit.dll. I do restart my computer when it prompts me to, and scan it again just in case but it's there every time.

Edited by cowpuppy, 10 August 2009 - 10:26 PM.


#7 boopme

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Posted 10 August 2009 - 10:37 PM

Ok sorry for the delelay but you have some serious malware here..
IMPORTANT NOTE: uacinit.dll is related to a nasty variant of the TDSSSERV rootkit component. Rootkits, backdoor Trojans, Botnets, and IRC Bots 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:

What danger is presented by rootkits?
Rootkits and how to combat them
r00tkit Analysis: What Is A Rootkit

If your computer was used for online banking, has credit card information or other sensitive data on it, you should 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 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:

How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?
What Should I Do If I've Become A Victim Of Identity Theft?
Identity Theft Victims Guide - What to do


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:

When should I re-format? How should I reinstall?
Help: I Got Hacked. Now What Do I Do?
Where to draw the line? When to recommend a format and reinstall?


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. Some infections are difficult to remove completely because of their morphing characteristics which allows the malware to regenerate itself. Sometimes there is another hidden piece of malware which has not been detected by your security tools that protects malicious files and registry keys (which have been detected) so they cannot be permanently deleted. Disinfection will probably require the use of more powerful tools than we recommend in this forum. Before that can be done you will need you to create and post a DDS/HijackThis log for further investigation. Let me know how you wish to proceed.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#8 cowpuppy

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Posted 11 August 2009 - 11:09 AM

Question:

Where exactly can "sensitive information" like passwords be found on my computer?

I never save passwords when browsing, and I cleared browsing data quickly after notification that my computer was infected.

What about other applications (Steam, for example) which require passwords? How can it access my router password?

Is it safe to retrieve files from my infected computer?

Thanks.

#9 boopme

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Posted 11 August 2009 - 11:45 AM

Hello you can still submit an HJT log to clean..
Passwords..http://support.microsoft.com/kb/306541

Steam and legitimate apps are not going to steal that info. theOwner of the backdoor will scan your comp for them then send it home.

After you back up the files scan them where thet are stored.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#10 cowpuppy

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Posted 11 August 2009 - 11:58 AM

So if I never choose to store or save any kind of password, my computer won't store any information on my passwords?

Sorry could you clarify your last post?

#11 boopme

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Posted 11 August 2009 - 12:05 PM

Yes if you choose not to then it won't and they have nothing to find as far as passwords go.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#12 cowpuppy

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Posted 11 August 2009 - 12:39 PM

Great! That's good to know.

I still think I'd like to reformat my laptop though. I suspect a lot of junk has been accumulating in it over the years, but I need to retrieve some personal stuff from it first. Homework, images, etc.

Is it safe to retrieve this stuff? Could they be infected/compromised in any way (though I don't imagine so)?

Thanks

#13 boopme

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Posted 11 August 2009 - 03:23 PM

You're welcome!
Not an unwise decision to make. In some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired. Wiping your drive, reformatting, and performing a clean install of the OS or doing a factory restore removes everything and is the safest action but I cannot make that decision for you.

Reformatting a hard disk deletes all data. If you decide to reformat, you can back up all your important documents, data files and photos. The safest practice is not to backup any autorun.ini or .exe files because they may be infected. Some types of malware may disguise itself by adding and hiding its extension to the existing extension of files so be sure you take a close look at the full name. After reformatting, as a precaution, make sure you scan these files with your anti-virus prior to copying them back to your hard drive.
==============================

2 guidelines/rules when backing up

1) Backup all your important data files, pictures, music, work etc... and save it onto an external hard-drive. These files usually include .doc, .txt, .mp3, .jpg etc...
2) Do not backup any executables files or any window files. These include .exe/.scr/.htm/.html/.xml/.zip/.rar files as they may contain traces of malware. Also, .html or .htm files that are webpages should also be avoided.

Download Belarc Advisor - builds a detailed profile of your installed software and hardware, including Microsoft Hotfixes, and displays the results in your Web browser.
Run it and then print out the results, they may be handy.

Reinstall Windows Vista
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#14 cowpuppy

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Posted 18 August 2009 - 04:16 PM

Question:

I haven't reformatted my computer yet. I've changed all my passwords and reset my router and such. I'm running in safe mode.

How safe is it to browse on this computer or simply to connect to the internet provided I don't provide any passwords and such?




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