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Remove RDN/Trojan.worm!055BCCAC9FEC (Virus Removal Guide) - updated Aug 2019

removal by Gabriel E. Hall - - | Type: Adware

RDN/Trojan.worm!055BCCAC9FEC is a fake alert that might pop up on your browser if infected with adware

RDN Trojan worm PUPRDN Trojan worm is a sign that an ad-supported application might have been attacking your web browsers lately.

RDN/Trojan.worm!055BCCAC9FEC is a non-existent cyber infection created by scammers. The alert of the detected threat shows up on a compromised website which is promoted with the help of adware[1] programs. Therefore, if suspicious virus detection alerts are disturbing your browsing sessions, it’s time to terminate the potentially unwanted program (PUP) from your computer. We have made a thorough research on RDN trojan worm and have found that this pop-up scam has been interrupting the activities of computer users quite often.[2]

Name RDN/Trojan.worm!055BCCAC9FEC
Type Technical Support Scam
Cause The scamming message can be met on unsecured third-party networks or might be a sign on a PUP/adware infection lurking on your machine
Danger level Low. Does not damage the system of software but might trick into calling a fake tech support line
Distribution method Free or shared programs that are combined into a bundle, infected third-party websites, and services
Symptoms Redirects to tech support websites, security alerts popping up on the screen, suspicious notifications
To uninstall RDN/Trojan.worm!055BCCAC9FEC, install Reimage Reimage Cleaner Intego and run a full system scan. Once all suspicious content is detected, continue with the automatical or manual removal method

The name of RDN/Trojan.worm!055BCCAC9FEC virus is used in many technical support scams,[3] such as “Hard Drive Is Not Accepted” virus. Despite the content displayed on fraudulent sites slightly differs, the main message remains the same – people are asked to call provided phone number in order to get rid of a cyber infection that puts user’s privacy at risk:

RDN/YahLover.worm!055BCCAC9FEC Infection
Call Technical Support Immediately at +1-800-696-4076
The following data will be compromised if you continue:
1. Passwords
2. Browser History
3. Credit Card Information
The virus is well known for complete identity and credit card theft. Further action through this computer or any computer on the network will reveal private information and involve serious risks.
Call Technical Support Immediately +1-800-696-4076

The example of RDN/Trojan.worm!055BCCAC9FEC scam above reveals only one number used by cybercriminals. However, different variants of the hoax include other numbers presented as Microsoft support line too. We want to remind that such support line does not exist, and calling the number might lead to serious problems, such as:

  • installation of malware;[4]
  • giving criminals remote access to your computer;
  • revealing sensitive information (e.g., credit card details) to crooks;
  • losing the money;
  • other privacy-related issues.

Now that you know all the potential risks that can surround you while dealing with RDN Trojan worm, you should have definitely thrown out the possibility of calling the fake technical support number. Be careful and do not contact the scammers in any kinds of ways as they might try to promote useless security software or steal personal data from you.

RDN/Trojan.worm!055BCCAC9FEC virus RDN/Trojan.worm!055BCCAC9FEC is a fake cyber threat that is used in technical support scams.

Note that RDN Trojan worm is not dangerous itself. It just provides misleading information and interferes in the browsing session. However, if these redirects continue, you should look up for adware program and uninstall it. These threats do not possess any harm to your system but can cause indirect damage through redirecting tasks.

You can suspect that RDN/Trojan.worm!055BCCAC9FEC adware was silently installed on your machine if you see more ads, banners or pop-ups than before. Additionally, your browser might continuously open new tabs with suspicious promotional, gaming or adult-themed websites. Of course, there’s no need to tolerate these issues.

The quickest way to stop unwanted browser’s activities and remove RDN/Trojan.worm!055BCCAC9FEC alert from the machine is to use an anti-malware program. You can start a free system scan with Reimage Reimage Cleaner Intego while you finish reading this article. Keep in mind that ad-supported programs are also likely to modify browsers and these changes also need to be reversed.

If RDN Trojan worm is a sign of an adware infection on your computer and browsers, be prepared to face unexpected modifications in the browser's homepage and new tab sections. By the way, the potentially unwanted program might bring questionable-looking extensions, plug-ins and insert them in your browser's settings.

RDN/Trojan.worm!055BCCAC9FEC scam

However, if you do not want to use additional anti-malware tools, you can opt for manual RDN/Trojan.worm!055BCCAC9FEC removal. Our team has explained this procedure below and here you will be able to find instructions for both your operating system (Windows or Mac OS X) and infected web browser applications (Chrome, Firefox, Explorer, Safari, Edge).

Adware programs spread bundled in freeware packages

The adware which is responsible for RDN/Trojan.worm!055BCCAC9FEC redirect problems was spotted spreading with a couple of free programs. However, this ad-supported application is not the only one that spreads in this manner. Hence, it’s time to learn how to avoid infiltration of PUPs.

First of all, you need to download applications from trusted sources and avoid torrents or similar file-sharing platforms. Secondly, you have to check if terms of use and privacy policy are provided to the desired program, and read these documents. If everything is clear, you can start the installation procedure using “Advanced” or “Custom” settings.

According to researchers from,[5] the majority of users fail on this step. Usually, people rely on “Recommended” settings which do not allow “unpacking” freeware and seeing what spreads together with it. Hence, if you choose these settings, you can expect a silent infiltration of PUPs. Meanwhile, “Advanced” settings let seeing and removing additional apps.

Get rid of RDN/Trojan.worm!055BCCAC9FEC virus

To remove RDN/Trojan.worm!055BCCAC9FEC from the browser, you need to look up for suspicious extensions, add-ons, and other components. If you want to do the job yourself, you should find our removal guide handy. Remember that adware traces need to be eliminated from all affected location of the scam might easily appear again.

However, if this fake security alert shows up again after rebooting your computer, you have to search for adware-related entries that you have overlooked. Of course, you can repeat manual RDN/Trojan.worm!055BCCAC9FEC removal guide, but it’s easier to run a full system scan with an updated anti-malware program.

You may remove virus damage with a help of Reimage Reimage Cleaner Intego. SpyHunter 5Combo Cleaner and Malwarebytes are recommended to detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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What to do if failed?
If you failed to remove virus damage using Reimage Intego, submit a question to our support team and provide as much details as possible.
Reimage Intego has a free limited scanner. Reimage 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 Reimage, 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.

To remove RDN/Trojan.worm!055BCCAC9FEC, follow these steps:

Eliminate RDN/Trojan.worm!055BCCAC9FEC from Windows systems

Follow these steps to look up for the virus-related components on the computer:

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall RDN/Trojan.worm!055BCCAC9FEC and related programs
    Here, look for RDN/Trojan.worm!055BCCAC9FEC or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'

Remove RDN/Trojan.worm!055BCCAC9FEC from Mac OS X system

If some adware signs have appeared on your Mac OS X device/machine, you can use the following guide for eliminating them:

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for RDN/Trojan.worm!055BCCAC9FEC or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'

Uninstall RDN/Trojan.worm!055BCCAC9FEC from Internet Explorer (IE)

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for RDN/Trojan.worm!055BCCAC9FEC and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete RDN/Trojan.worm!055BCCAC9FEC removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again

Get rid of RDN/Trojan.worm!055BCCAC9FEC from Microsoft Edge

To stop RDN/Trojan.worm!055BCCAC9FEC redirects, you need to reset Microsoft Edge:

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, RDN/Trojan.worm!055BCCAC9FEC should be removed from your Microsoft Edge browser.

Delete RDN/Trojan.worm!055BCCAC9FEC from Mozilla Firefox (FF)

Cleaning Mozilla Firefox from bogus extensions and plug-ins is not a hard thing to do. Follow these instructing lines and complete all of them as required:

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select RDN/Trojan.worm!055BCCAC9FEC and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete RDN/Trojan.worm!055BCCAC9FEC removal. Click on 'Reset Firefox' button for a couple of times

Erase RDN/Trojan.worm!055BCCAC9FEC from Google Chrome

Make sure that all suspicious programs that might be responsible for redirecting to RDN/Trojan.worm!055BCCAC9FEC tech support scam website are removed from Google Chrome:

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select RDN/Trojan.worm!055BCCAC9FEC and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete RDN/Trojan.worm!055BCCAC9FEC removal. Click on 'Reset' button to complete your removal

Eliminate RDN/Trojan.worm!055BCCAC9FEC from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for RDN/Trojan.worm!055BCCAC9FEC or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete RDN/Trojan.worm!055BCCAC9FEC removal process. Select all options and click on 'Reset' button

Access your website securely from any location

When you work on the domain, site, blog, or different project that requires constant management, content creation, or coding, you may need to connect to the server and content management service more often. It is a hassle when your website is protected from suspicious connections and unauthorized IP addresses.

The best solution for creating a tighter network could be a dedicated/fixed IP address. If you make your IP address static and set to your device, you can connect to the CMS from any location and do not create any additional issues for server or network manager that need to monitor connections and activities. This is how you bypass some of the authentications factors and can remotely use your banking accounts without triggering suspicious with each login. 

VPN software providers like Private Internet Access can help you with such settings and offer the option to control the online reputation and manage projects easily from any part of the world. It is better to clock the access to your website from different IP addresses. So you can keep the project safe and secure when you have the dedicated IP address VPN and protected access to the content management system.

Backup files for the later use, in case of the malware attack

Computer users can suffer various losses due to cyber infections or their own faulty doings. Software issues created by malware or direct data loss due to encryption can lead to problems with your device or permanent damage. When you have proper up-to-date backups, you can easily recover after such an incident and get back to work.

It is crucial to create updates to your backups after any changes on the device, so you can get back to the point you were working on when malware changes anything or issues with the device causes data or performance corruption. Rely on such behavior and make file backup your daily or weekly habit.

When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware occurs out of nowhere. Use Data Recovery Pro for the system restoring purpose.

About the author

Gabriel E. Hall
Gabriel E. Hall - Passionate web researcher

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