If you need to undo the changes you have made following the instructions in section B above right-click this link to download the ReenableAutorun. In addition to downloading and installing the latest security patches, you can take other precautionary measures to reduce the risk of infection.
Click here for more strategies to minimize the risk of a malware attack. If you are a network administrator, click here for steps you can take to minimize the rest of an infection on your network. To avoid re-infecting the operating system, it must be properly patched using all links from section A above.
If the ESET stand-alone cleaner does not fully remove the Conficker threat, the Microsoft article above also contains manual Conficker removal instructions. To find further information on protecting yourself against the Conficker worm please refer to our ESET blog entries. If you suspect that a Conficker infection is in place on computers in your network, you can use the free utility NMap to detect infected clients using the following commands:. The patches below are not necessary for Windows 7 or Server r2, as the exploit used by Conficker does not exist on these operating systems.
However, Microsoft Windows Server does require the patches below. If the above steps do not resolve the issue, reset all passwords and then perform the following steps to identify which machines are still attempting to spread the infection:. After completing the above steps for Cleaning Steps Network , all Administrative passwords should be changed again to ensure that Conficker does not have any of these passwords.
If Conficker is still showing threats after all machines are patched, then there is either an unpatched machine still remaining or ESET is not installed and updated on a machine. Need Assistance in North America? Alert: Information regarding the Log4j 2 vulnerability. Warning: After importing the downloaded file into your Windows Registry, any Autorun. Do not log on to computers by using Domain Admin credentials or credentials that have access to all computers.
Disable the Autoplay features. For more information, see step 3 of the "Create a Group Policy object" section. Remove excessive rights to shares. This includes removing write permissions to the root of any share. Important Make sure that you document any current settings before you make any of the changes that are suggested in this article.
This procedure does not remove the Conficker malware from the system. This procedure only stops the spread of the malware. You should use an antivirus product to remove the Conficker malware from the system. You may be unable to correctly install applications, service packs, or other updates while the permission changes that are recommended in the following steps are in place. Make sure that you change the permissions back to default settings after you clean the system.
Create a new Group Policy object GPO that applies to all computers in a specific organizational unit OU , site, or domain, as required in your environment. To do this, follow these steps:. Right-click Registry , and then click Add Key. In the Select Registry Key dialog box, expand Machine , and then move to the following folder:. In the dialog box that opens, click to clear the Full Control check box for both Administrators and System. In the Add Object dialog box, click Replace existing permissions on all subkeys with inheritable permissions.
This prevents the Conficker malware from creating the Scheduled Tasks that can reinfect the system. Right-click File System , and then click Add File. Make sure that Tasks is highlighted and listed in the Folder dialog box. In the dialog box that opens, click to clear the check boxes for Full Control , Modify , and Write for both Administrators and System.
Set AutoPlay Autorun features to disabled. This keeps the Conficker malware from spreading by using the AutoPlay features that are built into Windows. NoteDepending on the version of Windows that you are using, there are different updates that you must have installed to correctly disable the Autorun functionality:.
To disable the Autorun functionality in Windows Vista or in Windows Server , you must have security update installed described in security bulletin MS To disable the Autorun functionality in Windows XP, in Windows Server , or in Windows , you must have security update , update , or update installed. To set AutoPlay Autorun features to disabled, follow these steps:.
In the Turn off Autoplay dialog box, click Enabled. Allow for enough time for Group Policy settings to update to all computers. Generally, Group Policy replication takes five minutes to replicate to each domain controller, and then 90 minutes to replicate to the rest of the systems. A couple hours should be enough. However, more time may be required, depending on the environment.
After the Group Policy settings have propagated, clean the systems of malware. If your antivirus software does not detect Conficker, you can use the Microsoft Safety Scanner to clean the malware. Note The Microsoft Safety Scanner does not prevent reinfection because it is not a real-time antivirus program.
This tool is available as a component of the Microsoft Desktop Optimization Pack 6. These manual steps are not required any longer and should only be used if you have no antivirus software to remove the Conficker virus. The following detailed steps can help you manually remove Conficker from a system:. Log on to the system by using a local account.
Important Do not log on to the system by using a Domain account, if it is possible. Especially, do not log on by using a Domain Admin account. The malware impersonates the logged on user and accesses network resources by using the logged on user credentials.
This behavior allows for the malware to spread. Stop the Server service. This removes the Admin shares from the system so that the malware cannot spread by using this method. Note The Server service should only be disabled temporarily while you clean up the malware in your environment.
This is especially true on production servers because this step will affect network resource availability. As soon as the environment is cleaned up, the Server service can be re-enabled. Select Disabled in the Startup type box. ImportantThis section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully.
For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:. Click Start , type regedit in the Start Search box, and then click regedit. Hey Jackzor, No problem I am glad to have been able to help. As a recommendation I would back up all of your files. Should you ever have a future problem maybe the only fix action may require a hard drive reformat then re-installation of Windows.
What I have done in the past is purge files that are no longer needed then create one top level folder. Next create some sub-folders within and move all data into the sub-folders. Next I just grab the one folder "containing sub-folders" and move them to an external hard drive.
How often one would do this would be determined how often you work and turn within the folders Take care and if you need further WGA Assistance please stop on by Here is another forum which you may find useful as well. Sign in.
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Sign in to vote. Hi all. I just wanted to let you know that i believe this is only a suspicion though that i have received the conficker worm, or something similar directly from updating my vista system.
I also ran a registry check recently, registry first aid unsure what version as i uninstalled it but im now thinking that i should have payed closer attention to what it was 'fixing' for me, as i dont know if this couldve been the cause.
At any rate i still cant revalidate my vista, and i would really appreciate any specific help that anyone could offer to me. Thanks in advance Jack.
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