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Trojan.Zeroaccess.B virus on my computer.


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11 replies to this topic

#1 ljra101808

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Posted 04 January 2012 - 09:21 PM

I completed a Norton Antivirus scan on my computer, and it resulted with a virus that couldn't be fixed. It said I had to manually remove it myself.

The insight it gave me was that consrv.dll (Trojan.Zeroaccess.B)

The infected file: c:\windows\system32\consrv.dll

I tried system restore but it didn't complete, which has never happened before.

I've already tried Norton Bootable Recovery Tool and it's already deleted some infections, but there was still one titled advanced but it didn't exactly say what it was.

I've already backed up the files important to me on an external hard drive.

I'm not using my laptop as much for fear of making it worse.

It would be nice if help was given. Please and thank you :D

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#2 boopme

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Posted 04 January 2012 - 09:48 PM

Hello, let's try a quick scan here.


Please download MiniToolBox, save it to your desktop and run it.

Checkmark the following checkboxes:
  • Flush DNS
  • Report IE Proxy Settings
  • Reset IE Proxy Settings
  • Report FF Proxy Settings
  • Reset FF Proxy Settings
  • List content of Hosts
  • List IP configuration
  • List Winsock Entries
  • List last 10 Event Viewer log
  • List Installed Programs
  • List Devices
  • List Users, Partitions and Memory size.
  • List Minidump Files
Click Go and post the result (Result.txt). A copy of Result.txt will be saved in the same directory the tool is run.

Note: When using "Reset FF Proxy Settings" option Firefox should be closed.


Next run MBAM (MalwareBytes):

Please download Malwarebytes Anti-Malware and save it to your desktop.
Download Link 1 <<<== Use this one first.

Download Link 2MBAM 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.
    For instructions with screenshots, please refer to the How to use Malwarebytes' Anti-Malware Guide.
  • 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.

Troubleshoot Malwarebytes' Anti-Malware
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

#3 ljra101808

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Posted 05 January 2012 - 12:33 AM

Hi, when I saved MiniToolBox, Norton has found it to be a threat, and also when I tried running it, nothing seems to be happening.

#4 boopme

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Posted 05 January 2012 - 04:25 PM

If you cannot get Norton to ignore iy move on to MBAM.
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

#5 ljra101808

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Posted 05 January 2012 - 07:37 PM

Malwarebytes Anti-Malware (Trial) 1.60.0.1800
www.malwarebytes.org

Database version: v2012.01.05.04

Windows 7 Service Pack 1 x64 NTFS
Internet Explorer 8.0.7601.17514
Loren Janina :: LORENJANINA-PC [administrator]

Protection: Enabled

05/01/2012 2:46:05 PM
mbam-log-2012-01-05 (14-46-05).txt

Scan type: Full scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 374608
Time elapsed: 1 hour(s), 26 minute(s), 21 second(s)

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 1
HKLM\SOFTWARE\Microsoft\Internet Explorer\Low Rights\ElevationPolicy\{A078F691-9C07-4AF2-BF43-35E79EECF8B7} (Adware.Softomate) -> Quarantined and deleted successfully.

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 0
(No malicious items detected)

(end)

#6 boopme

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Posted 05 January 2012 - 09:15 PM

Now this please
Download aswMBR.exe ( 511KB ) to your desktop.

Right-click the aswMBR.exe and choose run as administrator

Posted Image

Click the "Scan" button to start scan

Posted Image

On completion of the scan click save log, save it to your desktop and post in your next reply
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

#7 ljra101808

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Posted 06 January 2012 - 01:09 AM

aswMBR version 0.9.9.1156 Copyright© 2011 AVAST Software
Run date: 2012-01-05 21:47:59
-----------------------------
21:47:59.203 OS Version: Windows x64 6.1.7601 Service Pack 1
21:47:59.203 Number of processors: 2 586 0x170A
21:47:59.205 ComputerName: LORENJANINA-PC UserName: Loren Janina
21:48:00.387 Initialize success
21:50:27.862 AVAST engine defs: 12010501
21:50:56.190 Disk 0 (boot) \Device\Harddisk0\DR0 -> \Device\Ide\IAAStorageDevice-1
21:50:56.195 Disk 0 Vendor: TOSHIBA_ GH01 Size: 476940MB BusType: 3
21:50:56.207 Disk 0 MBR read successfully
21:50:56.212 Disk 0 MBR scan
21:50:56.220 Disk 0 Windows VISTA default MBR code
21:50:56.361 Disk 0 Partition 1 80 (A) 27 Hidden NTFS WinRE NTFS 1500 MB offset 2048
21:50:56.458 Disk 0 Partition 2 00 07 HPFS/NTFS NTFS 464553 MB offset 3074048
21:50:56.495 Disk 0 Partition 3 00 17 Hidd HPFS/NTFS NTFS 10886 MB offset 954478592
21:50:56.506 Service scanning
21:50:57.720 Modules scanning
21:50:57.727 Disk 0 trace - called modules:
21:50:57.795 ntoskrnl.exe CLASSPNP.SYS disk.sys iaStor.sys hal.dll
21:50:57.802 1 nt!IofCallDriver -> \Device\Harddisk0\DR0[0xfffffa800487e480]
21:50:57.813 3 CLASSPNP.SYS[fffff88001bc743f] -> nt!IofCallDriver -> \Device\Ide\IAAStorageDevice-1[0xfffffa80046c8050]
21:51:00.347 AVAST engine scan C:\windows
21:51:03.659 AVAST engine scan C:\windows\system32
21:51:21.389 File: C:\windows\system32\consrv.dll **INFECTED** Win32:Sirefef-HO [Rtk]
21:54:13.233 AVAST engine scan C:\windows\system32\drivers
21:54:44.308 AVAST engine scan C:\Users\Loren Janina
22:18:04.282 AVAST engine scan C:\ProgramData
22:28:06.674 Scan finished successfully
23:08:58.448 Disk 0 MBR has been saved successfully to "C:\Users\Loren Janina\Desktop\MBR.dat"
23:08:58.454 The log file has been saved successfully to "C:\Users\Loren Janina\Desktop\aswMBR.txt"

#8 boopme

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Posted 06 January 2012 - 02:19 PM

Hello we have this rootkit.
21:51:21.389 File: C:\windows\system32\consrv.dll **INFECTED** Win32:Sirefef-HO [Rtk]

We need to start a new topic as you need specific help.


We need a deeper look. Please go here....
Preparation Guide ,do steps 6 - 9.

Create a DDS log and post it in the new topic explained in step 9 which is here Virus, Trojan, Spyware, and Malware Removal Logs and not in this topic,thanks.
Skip the GMER step and include the aswMBR log you posted earlier.
Let me know if that went well.
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

#9 ljra101808

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Posted 07 January 2012 - 12:25 AM

Hi, for one of the steps it said I should enable my Firewall, however that too won't work as I think it's also infected. Is it alright if I just leave it or do I have to do something about it as well?

#10 boopme

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Posted 07 January 2012 - 10:01 PM

Pas that by and nOte firewall is down in your new topic.
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

#11 ljra101808

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Posted 08 January 2012 - 12:37 AM

I did steps 6-9 and it went perfectly well. I also attached the aswMBR log to the post. Thanks for the help :D

#12 boopme

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Posted 08 January 2012 - 07:05 PM

You're welcome.
Now that your log is properly posted, you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a Malware Removal Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show it the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the Malware Removal Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the Malware Removal 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 make another reply until it has been responded to by a member of the Malware Removal 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 MRL Team member is already assisting you and not open the thread to respond.

The current wait time is 3 - 5 days and ALL logs are amswered.

To avoid confusion, I am closing this topic.
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




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