Danber (Free Guide) - Jul 2018 update

Danber Removal Guide

What is Danber?

Danber – a dangerous worm capable of multiplying itself fast

Danber virusDanber is a dangerous worm that can replicate itself and spread to many computers without anybody noticing

Danber is a type of malware that is capable of replicating itself not only on the targeted computer but all devices connected to it through a network. The virus does not inflict damage to the machine itself. Instead, in plants multiple executables (.exe) files into the Windows and runs in the background. Soon after that W32.Danber worm[1] looks for other computers connected to the same networks and multiplies itself. As soon as malware establishes itself, it may attempt to download and install other malicious software, capable of inflicting damage to system files, stealing personal data and engage in other malicious activities.

Name Danber
Also known as W32.Danber
Type Worm
Distribution External devices, malicious or hacked websites, links on social media, etc.
Symptoms System and program errors, BSoDs, pop-ups, slow operation of the machine
Detection and elimination Use FortectIntego or Malwarebytes

The ultimate goal of Danber virus is to remain undetected, boot every time Windows is booted, protect other malware that gets installed on the machine, and, finally, take over the computer entirely. For that reason, the worm creates its copies in all drives, copies its main executable into %System%\DanbtR270414.exe and creates the following registry entry:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\”DanBtR270414″ = “%System%\DanBtR270414.exe”

Users most likely infect their computers with W32.Danber worm while connecting a contaminated external drive (such as a USB stick, memory card, DVD, etc.), or obtain it from the internet. Those who enjoy pirated software can also receive this little surprise because it can be embedded into any executable only. It is a well-known fact that file-sharing sites often host malware.

Because the primary goal of Danber malware is to remain hidden, it rarely exposes any symptoms. If anything, computer operation can be as healthy as usual. That is why it is essential to have security software installed (such as FortectIntego or Malwarebytes) and continually perform system scans. Don't forget the real-time protection function to be on at all times. What is more, security software is essential for Danber removal, as it would be a too complicated task for a regular user.

In some cases you might experience the following symptoms of Danber infection:

  • overall sluggish performance of the PC;
  • BSoDs[2] occurance;
  • additional/unknown applications installed without your knowledge;
  • software shutting down or crashing suddenly;
  • questionablo pop-up messages appearing out of nowhere.

Regardless if you encounter any symptoms or not, you need to remove Danber as soon as possible, because as long as it remains on your computer, it poses a severe security threat. W32 can easily inject such cyber threats like ransomware, keyloggers, spyware and other unwanted programs.Danber worm without your knowledge.

Danber wormDanber is a virus that is capable of injecting other malware into users'machines

Avoid dangerous malware online

It is essential to be wary when using the internet, as computer worms and various viruses were developed even before the internet as we know it was just being born – back in 1982 the Elk Cloner was first virus of its kind. When the world wide web was born, it only became much easier to spread the infections. Regardless of what many users think, the virus cannot get into the machine on its own – the trigger is always the human.

Therefore, make sure you stay alert. Do not connect any unknown external drives to your PC (typically, the AV engine would detect malware, so make sure you have one enabled), avoid questionable websites, such as file-sharing, torrent, cracked software and similar. Instead, download freeware from trusted sources and make sure you pay attention to the installation process accordingly.

Additionally, it is equally important to patch your system as soon as updates are out. Cybercriminals often abuse software vulnerabilities to their advantage.

Remove Danber worm from your system

As we already mentioned, Danber virus can experience no symptoms at all. Therefore, some users might fail to detect it for months, and it can be too late. Thus, please do not delay Danber removal. To succeed, we recommend using reputable anti-virus tools, such as FortectIntego or Malwarebytes. These applications are capable of disabling malware and reverting the caused damage.

Security researchers[3] warn not to try to remove Danber manually, as you will not succeed. Computer worms are complicated infections and only trained IT professionals are capable of manually restoring the computer back to normal. Thus, trust security software. By the way, in case the malware is blocking anti-virus program from starting, boot Windows in Safe Mode with Networking.

do it now!
Fortect Happiness
Intego Happiness
Compatible with Microsoft Windows Compatible with macOS
What to do if failed?
If you failed to fix virus damage using Fortect Intego, submit a question to our support team and provide as much details as possible.
Fortect Intego has a free limited scanner. Fortect Intego offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Fortect, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Intego, try running Combo Cleaner.

Getting rid of Danber. Follow these steps

Manual removal using Safe Mode

Important! →
Manual removal guide might be too complicated for regular computer users. It requires advanced IT knowledge to be performed correctly (if vital system files are removed or damaged, it might result in full Windows compromise), and it also might take hours to complete. Therefore, we highly advise using the automatic method provided above instead.

Step 1. Access Safe Mode with Networking

Manual malware removal should be best performed in the Safe Mode environment. 

Windows 7 / Vista / XP
  1. Click Start > Shutdown > Restart > OK.
  2. When your computer becomes active, start pressing F8 button (if that does not work, try F2, F12, Del, etc. – it all depends on your motherboard model) multiple times until you see the Advanced Boot Options window.
  3. Select Safe Mode with Networking from the list. Windows 7/XP
Windows 10 / Windows 8
  1. Right-click on Start button and select Settings.
  2. Scroll down to pick Update & Security.
    Update and security
  3. On the left side of the window, pick Recovery.
  4. Now scroll down to find Advanced Startup section.
  5. Click Restart now.
  6. Select Troubleshoot. Choose an option
  7. Go to Advanced options. Advanced options
  8. Select Startup Settings. Startup settings
  9. Press Restart.
  10. Now press 5 or click 5) Enable Safe Mode with Networking. Enable safe mode

Step 2. Shut down suspicious processes

Windows Task Manager is a useful tool that shows all the processes running in the background. If malware is running a process, you need to shut it down:

  1. Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
  2. Click on More details.
    Open task manager
  3. Scroll down to Background processes section, and look for anything suspicious.
  4. Right-click and select Open file location.
    Open file location
  5. Go back to the process, right-click and pick End Task.
    End task
  6. Delete the contents of the malicious folder.

Step 3. Check program Startup

  1. Press Ctrl + Shift + Esc on your keyboard to open Windows Task Manager.
  2. Go to Startup tab.
  3. Right-click on the suspicious program and pick Disable.

Step 4. Delete virus files

Malware-related files can be found in various places within your computer. Here are instructions that could help you find them:

  1. Type in Disk Cleanup in Windows search and press Enter.
    Disk cleanup
  2. Select the drive you want to clean (C: is your main drive by default and is likely to be the one that has malicious files in).
  3. Scroll through the Files to delete list and select the following:

    Temporary Internet Files
    Recycle Bin
    Temporary files

  4. Pick Clean up system files.
    Delete temp files
  5. You can also look for other malicious files hidden in the following folders (type these entries in Windows Search and press Enter):


After you are finished, reboot the PC in normal mode.

Remove Danber using System Restore

  • Step 1: Reboot your computer to Safe Mode with Command Prompt
    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of Danber. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with FortectIntego and make sure that Danber removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from Danber and other ransomwares, use a reputable anti-spyware, such as FortectIntego, SpyHunter 5Combo Cleaner or Malwarebytes

How to prevent from getting worms

Protect your privacy – employ a VPN

There are several ways how to make your online time more private – you can access an incognito tab. However, there is no secret that even in this mode, you are tracked for advertising purposes. There is a way to add an extra layer of protection and create a completely anonymous web browsing practice with the help of Private Internet Access VPN. This software reroutes traffic through different servers, thus leaving your IP address and geolocation in disguise. Besides, it is based on a strict no-log policy, meaning that no data will be recorded, leaked, and available for both first and third parties. The combination of a secure web browser and Private Internet Access VPN will let you browse the Internet without a feeling of being spied or targeted by criminals. 

No backups? No problem. Use a data recovery tool

If you wonder how data loss can occur, you should not look any further for answers – human errors, malware attacks, hardware failures, power cuts, natural disasters, or even simple negligence. In some cases, lost files are extremely important, and many straight out panic when such an unfortunate course of events happen. Due to this, you should always ensure that you prepare proper data backups on a regular basis.

If you were caught by surprise and did not have any backups to restore your files from, not everything is lost. Data Recovery Pro is one of the leading file recovery solutions you can find on the market – it is likely to restore even lost emails or data located on an external device.

About the author
Julie Splinters
Julie Splinters - Anti-malware specialist

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