Conficker worm has also been referred to as the Downadup, and Kido. Conficker became one of the fastest and largest worm infections since the Sasser infection of It has been extremely difficult to contain and control due to its use of many different advanced malware techniques. Conficker also uses binary validation techniques to ensure that updates are signed by its authors. The use of binary encryption, digital signatures, and advanced hash algorithms for its updates prevent the hijacking of infected clients.
How to scan for malware, spyware, ransomware, adware, and other threats. Use Gridinsoft to remove Conficker and other junkware. Frequently Asked Questions. There are many ways to tell if your Windows 10 computer has been infected. Some of the warning signs include: Computer is very slow. Applications take too long to start. Computer keeps crashing.
Your friends receive spam messages from you on social media. You see a new extension that you did not install on your Chrome browser. Internet connection is slower than usual. Your computer fan starts up even when your computer is on idle. You are now seeing a lot of pop-up ads. You receive antivirus notifications. Open Windows Settings. The easiest way is to click the start button and then the gear icon. This is also where you will see definition updates for Windows Defender if they are available.
Select Windows Security and then click the button at the top of the page labeled Open Windows Security. Select Scan options to get started. Select the radio button the small circle next to Windows Defender Offline scan Keep in mind, this option will take around 15 minutes if not more and will require your PC to restart. Be sure to save any work before proceeding. I need your help to share this article.
It is your turn to help other people. I have written this guide to help users like you. You can use buttons below to share this on your favorite social media Facebook, Twitter, or Reddit. Wilbur Woodham. User Review 4. Intercept X Endpoint Features. Conficker Removal. Get Started. Download Now. Price Free. Compatibility For bit and bit versions of Windows. Help Visit our support forum. Sophos Endpoint. 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. In the Value data box, type 4, and then click OK. Exit Registry Editor, and then restart the computer.
Note The Task Scheduler service should only be disabled temporarily while you clean up the malware in your environment.
This is especially true on Windows Vista and Windows Server because this step will affect various built-in Scheduled Tasks. As soon as the environment is cleaned up, re-enable the Server service. Download and manually install security update MS For more information, visit the following Microsoft Web site:. In this scenario, you must download the update from an uninfected computer, and then transfer the update file to the infected system.
We recommend that you burn the update to a CD because the burned CD is not writable. Therefore, it cannot be infected. If a recordable CD drive is not available, a removable USB memory drive may be the only way to copy the update to the infected system. If you use a removable drive, be aware that the malware can infect the drive with an Autorun. After you copy the update to the removable drive, make sure that you change the drive to read-only mode, if the option is available for your device.
If read-only mode is available, it is typically enabled by using a physical switch on the device. Then, after you copy the update file to the infected computer, check the removable drive to see whether an Autorun. If it was, rename the Autorun. Reset any Local Admin and Domain Admin passwords to use a new strong password. In the details pane, right-click the netsvcs entry, and then click Modify.
B, the service name was random letters and was at the bottom of the list. With later variants, the service name may be anywhere in the list and may seem to be more legitimate. To verify, compare the list in the "Services table" with a similar system that is known not to be infected. Note the name of the malware service. You will need this information later in this procedure.
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