Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
An extremely dangerous worm has been the main topic of discussion in the online security community lately. Known as the Koobface botnet it is a malware infection that aims to spread to as many computers as possible. As the name suggests(koobFace in different order is Facebook) the malicious cyber-threat takes advantage of security weaknesses and users in social networks to infect computers and build a zombie network of peer-to-peer connected devices. The botnet may be used to install other malware on a massive scale based on the interests of the hackers controlling it. Experts from Symantec believe that the cyber-crooks may offer services to install malware bases on third-party orders. Users are strictly warned to take detecting and preventive measures in order to eradicate any danger that may be caused by this worm.
Name
W32.Koobface
Type
Worm Infection
Short Description
The malware may perform a wide variety of malicious deeds on the compromised computer and build up a botnet.
Symptoms
The user may witness advertisements, unauthorised posts from his/her profile in social media. Other after-effects include high network traffic, changed DNS settings in the IP protocol settings as well as all the symptoms of having an adware or a browser hijacker.
Distribution Method
Via Social Media websites primarily through friends` posts.
The infection is Distributed primarily in North America and Australia but It has also been detected in Europe. The worm is reported by malware researchers to be spread mainly via social networking websites. The malware may contain web links in a promoted or shared post that may redirect to external website, demanding a video codec to watch a video.
Posts that infect users with the virus, may look like the following:
The Koobface Worm – What Does It Do
People use social networking on a global scale and the users of such networks are still rapidly increasing. This is the very core competence of Koobface. It uses such websites, targeting users of any type. The worm relies primarily on inexperienced users that may fall into its social engineering (soc eng) trap. Tricked users believe that a web link, posted by a buddy may be trusted and this is how they become part of the increased botnet.
Once the worm builds a network it may be used to install additional programs of any types on the compromised PCs. They may be adware applications like browser hijackers that display pop-ups and change your browser`s settings, like Yoursearching(.)com. The worm may also download Ransomware like TeslaCrypt on your computer and encrypt your sensitive data.
Here are some other “features” of the worm:
Obtain sensitive credentials.
Redirect users to malware-infested sites.
Display advertisements.
Collect HTTP traffic information.
Deploy phishing attacks.
Block websites on demand.
Serve to a third-part command center via a web server.
Download other files via opened ports.
Steal legitimate license keys of Windows and other purchased software on the affected device.
Bypass CAPTCHA identifications.
Create user accounts of different sites and social media accounts.
The Koobface Worm In Detail
Regarding the installation, the worm is reported by Symantec researchers to come via a fake setup.exe or fake update of a plugin. It usually happens after clicking on a link posted in Facebook redirecting to the malicious URL. When activated it copies its malicious objects directly into the Hard Drive of the affected PC.
The worm has three versions and depending on them, the malicious payload carrying filename may be one of the following:
Ld05.exe
Ld11.exe
Ld12.exe
Furthermore, the researchers have also managed to detect that the worm can self-check if its files are active and running in C:\Windows\that is the main Windows directory. In case the scenario is that it is inactive, it copies a .bat file in C:\ then deletes it`s current executable, allowing it to remain active for longer. File names may vary for different intrusions.
Regarding what the worm does in the Windows Registry Editor, well, the picture is not pretty there either:
→In the key “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\” it creates value with data to run the version`s .exe. For example: sysLdtray” = “%Windir%\Ld05.exe”
Furthermore, the Worm may also deploy malicious files that may have the following names:
ddnsFilter.dll
filter.sys
fio32.dll
fio32.sys
These files, when activated have the ability to block foreign domains and restrict the user`s access to them.
Here are some of the domains that Symantec researchers report to be blocked:
Also, the worm might change the DNS settings of the compromised PC.
When it comes to the info-stealing “extra” the Worm has been gifted, it is utilized via another malicious file, known as either “go.exe” or “get.exe”. Via those the worm can gather all types of relevant system info that then may be aggregated and sent out to the C&C servers. Without going into much detail imagine that every software you purchased, every password you saved, any information with value may suddenly be used against you or to serve other interests.
And this is not where the surprises by Koobface Worm end. It may also cause redirects and what is known as Black SEO to the search results of your search engine, without you even noticing it. Imagine you are looking to buy smartphones and the worm displays the relevant search results but after clicking them you may get redirected to a third-party website that may either be an Advertising site or a malicious URL. The objects controlling this have been reported to be .dll files containing the word “Browser” in them.
When we examine the obtaining of Network traffic data, Koobface might reroute this information directly to the controlling server. Furthermore, it may also have direct commands that may influence the default routing table, allowing third-party addresses to intercept and monitor your daily activities.
Last but not least important, the malware may affect the compromised computer using a Web Server, posting on its behalf on social networks or allowing it to spread via the Local Area Network(LAN) of the user affecting other computers. This is particularly effective for small home or office networks. The module controlling it goes by the name webserver.exe. It was also detected with a .dat extension. Additionally, Koobface has been reported to use the TCP ports 80 and 53 for incoming connectivity. However the ports it opens may vary.
The bypassing of the CAPTCHA defense mechanism, while the worm is attempting to post from your behalf in social media sites, is done by uploading it directly to the command servers controlled by the hackers. The CAPTCHA is then displayed in full screen in front of another user preventing any other activity before entering it manually. This is a very effective distribution method since it allows the Koobface creators to work for free.
Removing Koobface Worm Completely
To remove Koobface worm, a simple removal manual would not cut it, since the worm may have infected you with different malware, like Trojan.Downloader or a Rootkit. This is why it is highly advisable to do a clean reinstall of your computer, after which to use the tutorial below in order to check whether or not the device you are using is safe. It is also advisable to use a VPN service or a Proxy as well as advanced malware protection software to further detect and prevent any intrusions by Koobface.
1. Boot Your PC In Safe Mode to isolate and remove W32.Koobface
1. Boot Your PC Into Safe Mode
1. For Windows 7,XP and Vista. 2. For Windows 8, 8.1 and 10.
For Windows XP, Vista, 7 systems:
1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu. 2. Select one of the two options provided below:
– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.
– For PCs with multiple operating systems: Òhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.
3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.
4. Log on to your computer using your administrator account
While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.
Step 1: Open the Start Menu
Step 2: Whilst holding down Shift button, click on Power and then click on Restart. Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.
Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.
Step 5: After the Advanced Options menu appears, click on Startup Settings.
Step 6: Click on Restart.
Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.
2. Remove W32.Koobface with SpyHunter Anti-Malware Tool
2. Remove W32.Koobface with SpyHunter Anti-Malware Tool
1. Install SpyHunter to scan for and remove W32.Koobface.2. Scan with SpyHunter to Detect and Remove W32.Koobface.
Step 1:Click on the “Download” button to proceed to SpyHunter’s download page.
It is highly recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter.
Step 2: Guide yourself by the download instructions provided for each browser. Step 3: After you have installed SpyHunter, wait for it to automatically update.
Step1: After the update process has finished, click on the ‘Scan Computer Now’ button. Step2: After SpyHunter has finished scanning your PC for any W32.Koobface files, click on the ‘Fix Threats’ button to remove them automatically and permanently. Step3: Once the intrusions on your PC have been removed, it is highly recommended to restart it.
3. Back up your data to secure it against infections by W32.Koobface in the future
3. Back up your data to secure it against attacks in the future
IMPORTANT! Before reading the Windows backup instructions, we highly recommend to back up your data automatically with cloud backup and insure it against any type of data loss on your device, even the most severe. We recommend reading more about and downloading SOS Online Backup.
To back up your files via Windows and prevent any future intrusions, follow these instructions:
1. For Windows 7 and earlier 1. For Windows 8, 8.1 and 10 1. Enabling the Windows Defense Feature (Previous Versions)
1-Click on Windows Start Menu 2-Type Backup And Restore 3-Open it and click on Set Up Backup 4-A window will appear asking you where to set up backup. You should have a flash drive or an external hard drive. Mark it by clicking on it with your mouse then click on Next. 5-On the next window, the system will ask you what do you want to backup. Choose the ‘Let Me Choose’ option and then click on Next. 6-Click on ‘Save settings and run backup’ on the next window in order to protect your files from possible attacks by .
1-Press Windows button + R 2-In the window type ‘filehistory’ and press Enter 3-A File History window will appear. Click on ‘Configure file history settings’ 4-The configuration menu for File History will appear. Click on ‘Turn On’. After its on, click on Select Drive in order to select the backup drive. It is recommended to choose an external HDD, SSD or a USB stick whose memory capacity is corresponding to the size of the files you want to backup. 5-Select the drive then click on ‘Ok’ in order to set up file backup and protect yourself from .
1- Press Windows button + R keys. 2- A run windows should appear. In it type ‘sysdm.cpl’ and then click on Run. 3- A System Properties windows should appear. In it choose System Protection. 5- Click on Turn on system protection and select the size on the hard disk you want to utilize for system protection. 6- Click on Ok and you should see an indication in Protection settings that the protection from is on. Restoring a file via Windows Defense feature: 1-Right-click on the encrypted file, then choose Properties. 2-Click on the Previous Versions tab and then mark the last version of the file. 3-Click on Apply and Ok and the file encrypted by should be restored.
Optional: Using Alternative Anti-Malware Tools
Remove W32.Koobface Using Other Alternative Tools
Malwarebytes Anti-MalwareSTOPZilla Anti Malware
1. Install Malwarebytes Anti-Malware to scan for and remove W32.Koobface. Step 1: Download Malwarebytes by clicking here. Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards. Step 3: After you have downloaded the setup, simply open it. Step 4: The installer should appear. Click on the ‘Next’ button. Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again. Step 6: Review and click on ‘Next’ on the following 4 steps that will appear afterwards and after that click on the ‘Install’ button. Step 7: After the installation process has completed click on the ‘Finish’ button and check the ‘Launch MalwareBytes AntiMalware’ check box.
2. Scan your PC with MalwareBytes to remove all W32.Koobface associated files automatically.
Step 1: Launch MalwareBytes if you havent launched it after install. Step 2: Wait for the software to update and then click on the blue ‘Scan Now’ button. If it doesnt start updating automatically, click on the blue ‘Update Now’ highlighted text. Step 3: At this point, after clicking the ‘Scan Now’ button, the system should start scanning your PC. It may take a while but be patient – it is worth it. Step 4: After the scan has been complete and all of the threats have been identified, click on the ‘Remove Selected’ button to delete them permanently. Step 5: Once the scan has completed, MalwareBytes will prompt you to restart your computer. It is recommended to save all your data you are working on before restarting.
1. Download and Install STOPZilla Anti-malware to Scan for And Remove W32.Koobface. Step 1: Download STOPZilla by clicking here. Step 2: A pop-up window will appear. Click on the ‘Save File’ button. If it does not, click on the Download button and save it afterwards. Step 3: After you have downloaded the setup, simply open it. Step 4: The installer should appear. Click on the ‘Next’ button. Step 5: Check the ‘I accept the agreement’ check circle if not checked if you accept it and click the ‘Next’ button once again. Step 6: Review and click on the ‘Install’ button. Step 7: After the installation process has completed click on the ‘Finish’ button.
2. Scan your PC with STOPZilla Anti Malware to remove all W32.Koobface associated files completely. Step 1:Launch STOPZilla if you haven’t launched it after install. Step 2: Wait for the software to automatically scan and then click on the ‘Repair Now’ button. If it does not scan automatically, click on the ‘Scan Now’ button. Step 3: After the removal of all threats and associated objects, you should Restart your PC.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
W32.Koobface may remain persistent on your system and may re-infect it. We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Preparation before removing W32.Koobface.
Before starting the actual removal process, we recommend that you do the following preparation steps.
Make sure you have these instructions always open and in front of your eyes.
Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
Be patient as this could take a while.
Step 1: Boot Your PC In Safe Mode to isolate and remove W32.Koobface
OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria
1. Hold Windows key()+ R
2. The “Run” Window will appear. In it, type “msconfig” and click OK.
3. Go to the “Boot” tab. There select “Safe Boot” and then click “Apply” and “OK”.
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.
4. When prompted, click on “Restart” to go into Safe Mode.
5. You can recognise Safe Mode by the words written on the corners of your screen.
Step 2: Clean any registries, created by W32.Koobface on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by W32.Koobface there. This can happen by following the steps underneath:
1. Open the Run Window again, type “regedit” and click OK.
2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.
3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click “Modify” to see which file it is set to run. If this is the virus file location, remove the value.
Step 3: Find files created by W32.Koobface
For Windows 8, 8.1 and 10. For Windows XP, Vista, and 7.
For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.
For Older Windows Operating Systems
In older Windows OS’s the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
IMPORTANT! Before starting “Step 4”, please boot back into Normal mode, in case you are currently in Safe Mode. This will enable you to install and use SpyHunter 5 successfully.
Step 4: Scan for W32.Koobface with SpyHunter Anti-Malware Tool
1. Click on the “Download” button to proceed to SpyHunter’s download page.
It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
2. After you have installed SpyHunter, wait for it to update automatically.
3. After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.
4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.
If any threats have been removed, it is highly recommended to restart your PC.
Step 5 (Optional): Try to Restore Files Encrypted by W32.Koobface.
Ransomware infections and W32.Koobface aim to encrypt your files using an encryption algorithm which may be very difficult to decrypt. This is why we have suggested several alternative methods that may help you go around direct decryption and try to restore your files. Bear in mind that these methods may not be 100% effective but may also help you a little or a lot in different situations.
Method 1: Scanning your drive’s sectors by using Data Recovery software. Another method for restoring your files is by trying to bring back your files via data recovery software. Here are some suggestions for preferred data recovery software solutions:
Method 2: Trying Kaspersky and EmsiSoft’s decryptors. If the first method does not work, we suggest trying to use decryptors for other ransomware viruses, in case your virus is a variant of them. The two primary developers of decryptors are Kaspersky and EmsiSoft, links to which we have provided below:
To restore your data in case you have backup set up, it is important to check for Volume Shadow Copies, if ransomware has not deleted them, in Windows using the below software:
Method 4: Finding the decryption key while the cryptovirus sends it over a network via a sniffing tool.
Another way to decrypt the files is by using a Network Sniffer to get the encryption key, while files are encrypted on your system. A Network Sniffer is a program and/or device monitoring data traveling over a network, such as its internet traffic and internet packets. If you have a sniffer set before the attack happened you might get information about the decryption key. See how-to instructions below:
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
W32.Koobface may remain persistent on your system and may re-infect it. We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Preparation before removing W32.Koobface.
Before starting the actual removal process, we recommend that you do the following preparation steps.
Make sure you have these instructions always open and in front of your eyes.
Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
Be patient as this could take a while.
Step 1: Boot Your PC In Safe Mode to isolate and remove W32.Koobface
OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria
1. Hold Windows key()+ R
2. The “Run” Window will appear. In it, type “msconfig” and click OK.
3. Go to the “Boot” tab. There select “Safe Boot” and then click “Apply” and “OK”.
Tip: Make sure to reverse those changes by unticking Safe Boot after that, because your system will always boot in Safe Boot from now on.
4. When prompted, click on “Restart” to go into Safe Mode.
5. You can recognise Safe Mode by the words written on the corners of your screen.
Step 2: Clean any registries, created by W32.Koobface on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by W32.Koobface there. This can happen by following the steps underneath:
1. Open the Run Window again, type “regedit” and click OK.
2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.
3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click “Modify” to see which file it is set to run. If this is the virus file location, remove the value.
Step 3: Find files created by W32.Koobface
For Windows 8, 8.1 and 10. For Windows XP, Vista, and 7.
For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC’s screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be “fileextension:exe”. After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navination box to fill up in case the PC is looking for the file and hasn’t found it yet.
For Older Windows Operating Systems
In older Windows OS’s the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
IMPORTANT! Before starting “Step 4”, please boot back into Normal mode, in case you are currently in Safe Mode. This will enable you to install and use SpyHunter 5 successfully.
Step 4: Scan for W32.Koobface with SpyHunter Anti-Malware Tool
1. Click on the “Download” button to proceed to SpyHunter’s download page.
It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
2. After you have installed SpyHunter, wait for it to update automatically.
3. After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.
4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.
If any threats have been removed, it is highly recommended to restart your PC.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
W32.Koobface may remain persistent on your system and may re-infect it. We recommend you to download SpyHunter and run free scan to remove all virus files on your PC. This saves you hours of time and effort compared to doing the removal yourself.
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
Preparation before removing W32.Koobface.
Before starting the actual removal process, we recommend that you do the following preparation steps.
Make sure you have these instructions always open and in front of your eyes.
Be patient as this could take a while.
Step 1: Uninstall W32.Koobface and related software from Windows
OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your PC with SpyHunter
Keep in mind, that SpyHunter’s scanner is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter’s malware removal tool to remove the malware threats. Read our SpyHunter 5 review. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria
Here is a method in few easy steps that should be able to uninstall most programs.No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it. To do that:
1. Hold the Windows Logo Button and “R” on your keyboard. A Pop-up window will appear.
2. In the field type in “appwiz.cpl” and press ENTER.
3. This will open a window with all the programs installed on the PC. Select the program that you want to remove, and press “Uninstall”
Follow the instructions above and you will successfully uninstall most programs.
Step 2: Clean your Browsers from W32.Koobface.
Remove an extension from Mozilla FirefoxRemove an extension from Google Chrome Remove an extension from Internet Explorer Remove an extension from Microsoft Edge
1. Start Mozilla Firefox. Open the menu window
2. Select the “Add-ons” icon from the menu.
3. Select the unwanted extension and click “Remove“
4. After the extension is removed, restart Mozilla Firefox by closing it from the red “X” button at the top right corner and start it again.
1. Start Google Chrome and open the drop menu
2. Move the cursor over “Tools” and then from the extended menu choose “Extensions“
3. From the opened “Extensions” menu locate the unwanted extension and click on its “Remove” button.
4. After the extension is removed, restart Google Chrome by closing it from the red “X” button at the top right corner and start it again.
1. Start Internet Explorer: 2. Click on the gear icon labeled ‘Tools’ to open the drop menu and select ‘Manage Add-ons’
3. In the ‘Manage Add-ons’ window.
4. Select the extension you want to remove and then click ‘Disable’. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click ‘Disable’.
5. After the unwanted extension has been removed, restart Internet Explorer by closing it from the red ‘X’ button located at the top right corner and start it again.
1. Start Edge
2. Open the drop menu by clicking on the icon at the top right corner.
3. From the drop menu select “Extensions”.
4. Choose the suspected malicious extension you want to remove and then click on the gear icon.
5. Remove the malicious extension by scrolling down and then clicking on Uninstall.
Step 3: Clean any registries, created by W32.Koobface on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by W32.Koobface there. This can happen by following the steps underneath:
1. Open the Run Window again, type “regedit” and click OK.
2. When you open it, you can freely navigate to the Run and RunOnce keys, whose locations are shown above.
3. You can remove the value of the virus by right-clicking on it and removing it.
Tip: To find a virus-created value, you can right-click on it and click “Modify” to see which file it is set to run. If this is the virus file location, remove the value.
IMPORTANT! Before starting “Step 4”, please boot back into Normal mode, in case you are currently in Safe Mode. This will enable you to install and use SpyHunter 5 successfully.
Step 4: Scan for W32.Koobface with SpyHunter Anti-Malware Tool
1. Click on the “Download” button to proceed to SpyHunter’s download page.
It is recommended to run a scan before purchasing the full version of the software to make sure that the current version of the malware can be detected by SpyHunter. Click on the corresponding links to check SpyHunter’s EULA, Privacy Policy and Threat Assessment Criteria.
2. After you have installed SpyHunter, wait for it to update automatically.
3. After the update process has finished, click on the ‘Malware/PC Scan’ tab. A new window will appear. Click on ‘Start Scan’.
4. After SpyHunter has finished scanning your PC for any files of the associated threat and found them, you can try to get them removed automatically and permanently by clicking on the ‘Next’ button.
If any threats have been removed, it is highly recommended to restart your PC.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
W32.Koobface may remain persistent on your system and may re-infect it. We recommend you to download Combo Cleaner and run free scan to remove all virus files on your Mac. This saves you hours of time and effort compared to doing the removal yourself.
Combo Cleaner’s scanner is free but the paid version is needed to remove the malware threats. Read Combo Cleaner’s EULA and Privacy Policy
Preparation Phase:
Before starting to follow the steps below, be advised that you should first do the following preparations:
Backup your files in case the worst happens.
Make sure to have a device with these instructions on standy.
Arm yourself with patience.
Step 1: Uninstall W32.Koobface and remove related files and objects
OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with Combo Cleaner
Keep in mind, that Combo Cleaner needs to purchased to remove the malware threats. Click on the corresponding links to check Combo Cleaner’s EULA and Privacy Policy
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
2. Find Activity Monitor and double-click it:
3. In the Activity Monitor look for any suspicious processes, belonging or related to W32.Koobface:
Tip: To quit a process completely, choose the “Force Quit” option.
4. Click on the “Go” button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.
5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to W32.Koobface. If you find it, right-click on the app and select “Move to Trash”.
6. Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to W32.Koobface. Check the app you want to stop from running automatically and then select on the Minus (“–“) icon to hide it.
7. Remove any left-over files that might be related to this threat manually by following the sub-steps below:
Go to Finder.
In the search bar type the name of the app that you want to remove.
Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
Step 2: Remove W32.Koobface – related extensions from your Mac’s browsers
Remove a toolbar from Mozilla FirefoxRemove a toolbar from Google Chrome Remove an extension from Safari and reset it.
1. Start Mozilla Firefox. Open the menu window
2. Select the “Add-ons” icon from the menu.
3. Select the Extension and click “Remove“
4. After the extension is removed, restart Mozilla Firefox by closing it from the red “X” in the top right corner and start it again.
1. Start Google Chrome and open the drop menu
2. Move the cursor over “Tools” and then from the extended menu choose “Extensions“
3. From the opened “Extensions” menu locate the add-on and click on the garbage bin icon on the right of it.
4. After the extension is removed, restart Google Chrome by closing it from the red “X” in the top right corner and start it again.
1. Start Safari
2. After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
3. From the menu, click on “Preferences“
4. After that, select the ‘Extensions’ Tab
5. Click once on the extension you want to remove.
6. Click ‘Uninstall’
A pop-up window will appear asking for confirmation to uninstall the extension. Select ‘Uninstall’ again, and the W32.Koobface will be removed.
How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.
Start Safari and then click on the gear leaver icon.
Click the Reset Safari button and you will reset the browser.
Step 3: Scan for and remove W32.Koobface files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as W32.Koobface, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Ventsislav has been covering the latest malware, software and newest tech developments at SensorsTechForum for 3 years now. He started out as a network administrator. Having graduated Marketing as well, Ventsislav also has passion for discovery of new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management and then Network Administration, he found his passion within cybersecrurity and is a strong believer in basic education of every user towards online safety.
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1. For Windows 7,XP and Vista.
2. For Windows 8, 8.1 and 10.
1. Install SpyHunter to scan for and remove W32.Koobface.
1. For Windows 7 and earlier
Malwarebytes Anti-Malware
STOPZilla Anti Malware
For Windows 8, 8.1 and 10.
For Windows XP, Vista, and 7.
Remove an extension from Mozilla Firefox
Remove an extension from Google Chrome
Remove an extension from Internet Explorer
Remove an extension from Microsoft Edge
Remove an extension from Safari and reset it.
