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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 ReimageIntego 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 ReimageIntego 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 ReimageIntego. 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:

To remove RDN/Trojan.worm!055BCCAC9FEC from Windows 10/8  machines, please follow these steps:

  1. Enter Control Panel into Windows search box and hit Enter or click on the search result.
  2. Under Programs, select Uninstall a program.Uninstall from Windows 1
  3. From the list, find entries related to RDN/Trojan.worm!055BCCAC9FEC (or any other recently installed suspicious program).
  4. Right-click on the application and select Uninstall.
  5. If User Account Control shows up, click Yes.
  6. Wait till uninstallation process is complete and click OK.Uninstall from Windows 2

If you are Windows 7/XP user, proceed with the following instructions:

  1. Click on Windows Start > Control Panel located on the right pane (if you are Windows XP user, click on Add/Remove Programs).
  2. In Control Panel, select Programs > Uninstall a program.Uninstall from Windows 7/XP
  3. Pick the unwanted application by clicking on it once.
  4. At the top, click Uninstall/Change.
  5. In the confirmation prompt, pick Yes.
  6. Click OK once the removal process is finished.

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:

If your macOS is displaying some infection symptoms, proceed with the following guide:

Remove RDN/Trojan.worm!055BCCAC9FEC from Applications folder:

  1. From the menu bar, select Go > Applications.
  2. In the Applications folder, look for RDN/Trojan.worm!055BCCAC9FEC-related entries.
  3. Click on the app and drag it to Trash (or right-click and pick Move to Trash)Uninstall from Mac 1

To fully remove RDN/Trojan.worm!055BCCAC9FEC, you need to access Application Support, LaunchAgents, and LaunchDaemons folders and delete relevant files:

  1. Select Go > Go to Folder.
  2. Enter /Library/Application Support and click Go or press Enter.
  3. In the Application Support folder, look for any dubious entries related to RDN/Trojan.worm!055BCCAC9FEC and then delete them.
  4. Now enter /Library/LaunchAgents and /Library/LaunchDaemons folders the same way and terminate all the RDN/Trojan.worm!055BCCAC9FEC-related entries.Uninstall from Mac 2

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

Remove dangerous add-ons:

  1. Open Internet Explorer, click on the Gear icon (IE menu) on the top-right corner of the browser
  2. Pick Manage Add-ons.
  3. You will see a Manage Add-ons window. Here, look for RDN/Trojan.worm!055BCCAC9FEC and other suspicious plugins. Click on these entries and select Disable.Remove add-ons from Internet Explorer

Change your homepage if it was altered:

  1. Open IE and click on the Gear icon.
  2. Select Internet Options.
  3. In the General tab, delete the Home page address and replace it by your preferred one (for example,
  4. Click Apply and then select OK.Reset IE homepage

Delete temporary files:

  1. Press on the Gear icon and select Internet Options.
  2. Under Browsing history, click Delete…
  3. Select relevant fields and press Delete.Clear temporary files from Internet Explorer

Reset Internet Explorer:

  1. Click on Gear icon > Internet options and select Advanced tab.
  2. Select Reset.
  3. In the new window, check Delete personal settings and select Reset again to complete RDN/Trojan.worm!055BCCAC9FEC removal.Reset Internet Explorer

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

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

Delete unwanted extensions from MS Edge:

  1. Select Menu (three horizontal dots at the top-right of the browser window) and pick Extensions.
  2. From the list, pick the RDN/Trojan.worm!055BCCAC9FEC-related extension and click on the Gear icon.
  3. Click on Uninstall at the bottom.Remove extensions from Edge

Clear cookies and other browser data:

  1. Click on the Menu (three horizontal dots at the top-right of the browser window) and select Privacy & security.
  2. Under Clear browsing data, pick Choose what to clear.
  3. Select everything (apart from passwords, although you might want to include Media licenses as well, if applicable) and click on Clear.Clear Edge browsing data

Reset MS Edge if that above steps did not work:

  1. Press on Ctrl + Shift + Esc to open Task Manager.
  2. Click on More details arrow at the bottom of the window.
  3. Select Details tab.
  4. Now scroll down and locate every entry with Microsoft Edge name in it. Right-click on each of them and select End Task to stop MS Edge from running.Reset MS Edge

If this solution failed to help you, you need to use an advanced Edge reset method. Note that you need to backup your data before proceeding.

  1. Find the following folder on your computer: C:\\Users\\%username%\\AppData\\Local\\Packages\\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  2. Press Ctrl + A on your keyboard to select all folders.
  3. Right-click on them and pick DeleteAdvanced MS Edge reset 1
  4. Now right-click on the Start button and pick Windows PowerShell (Admin).
  5. When the new window opens, copy and paste the following command, and then press Enter:

    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\\AppXManifest.xml” -VerboseAdvanced MS Edge reset 2

Instructions for Chromium-based Edge

Delete extensions from MS Edge (Chromium):

  1. Open Edge and click select Settings > Extensions.
  2. Delete unwanted extensions by clicking Remove.Remove extensions from Chromium Edge

Clear cache and site data:

  1. Click on Menu and go to Settings.
  2. Select Privacy and services.
  3. Under Clear browsing data, pick Choose what to clear.
  4. Under Time range, pick All time.
  5. Select Clear now.Clear browser data from Chroum Edge

Reset Chromium-based MS Edge:

  1. Click on Menu and select Settings.
  2. On the left side, pick Reset settings.
  3. Select Restore settings to their default values.
  4. Confirm with Reset.Reset Chromium Edge

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:

Remove dangerous extensions:

  1. Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
  2. Select Add-ons.
  3. In here, select plugins that are related to RDN/Trojan.worm!055BCCAC9FEC and click Remove.Remove extensions from Firefox

Clear cookies and site data:

  1. Click Menu and pick Options.
  2. Go to Privacy & Security section.
  3. Scroll down to locate Cookies and Site Data.
  4. Click on Clear Data…
  5. Select Cookies and Site Data, as well as Cached Web Content and press Clear.Clear cookies and site data from Firefox

In case RDN/Trojan.worm!055BCCAC9FEC did not get removed after following the instructions above, reset Mozilla Firefox:

  1. Open Mozilla Firefox browser and click the Menu.
  2. Go to Help and then choose Troubleshooting Information.Reset Firefox 1
  3. Under Give Firefox a tune up section, click on Refresh Firefox…
  4. Once the pop-up shows up, confirm the action by pressing on Refresh Firefox – this should complete RDN/Trojan.worm!055BCCAC9FEC removal.Reset Firefox 2

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:

Delete malicious extensions from Google Chrome:

  1. Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
  2. In the newly opened window, you will see all the installed extensions. Uninstall all the suspicious plugins that might be related to RDN/Trojan.worm!055BCCAC9FEC by clicking Remove.Remove extensions from Chrome

Clear cache and web data from Chrome:

  1. Click on Menu and pick Settings.
  2. Under Privacy and security, select Clear browsing data.
  3. Select Browsing history, Cookies and other site data, as well as Cached images and files.
  4. Click Clear data.Clear cache and web data from Chrome

If the above-methods did not help you, reset Google Chrome to eliminate all the RDN/Trojan.worm!055BCCAC9FEC-components:

  1. Click on Menu and select Settings.
  2. In the Settings, scroll down and click Advanced.
  3. Scroll down and locate Reset and clean up section.
  4. Now click Restore settings to their original defaults.
  5. Confirm with Reset settings to complete RDN/Trojan.worm!055BCCAC9FEC removal.Reset Chrome 2

Eliminate RDN/Trojan.worm!055BCCAC9FEC from Safari

Remove unwanted extensions from Safari:

  1. Click Safari > Preferences…
  2. In the new window, pick Extensions.
  3. Select the unwanted extension related to RDN/Trojan.worm!055BCCAC9FEC and select Uninstall.Remove extensions from Safari

Clear cookies and other website data from Safari:

  1. Click Safari > Clear History…
  2. From the drop-down menu under Clear, pick all history.
  3. Confirm with Clear History.Clear cookies and website data from Safari

Reset Safari if the above-mentioned steps did not help you:

  1. Click Safari > Preferences…
  2. Go to Advanced tab.
  3. Tick the Show Develop menu in menu bar.
  4. From the menu bar, click Develop, and then select Empty Caches.Reset Safari

Stream videos without limitations, no matter where you are

There are multiple parties that could find out almost anything about you by checking your online activity. While this is highly unlikely, advertisers and tech companies are constantly tracking you online. The first step to privacy should be a secure browser that focuses on tracker reduction to a minimum.

Even if you employ a secure browser, you will not be able to access websites that are restricted due to local government laws or other reasons. In other words, you may not be able to stream Disney+ or US-based Netflix in some countries. To bypass these restrictions, you can employ a powerful Private Internet Access VPN, which provides dedicated servers for torrenting and streaming, not slowing you down in the process.

Data backups are important – recover your lost files

Ransomware is one of the biggest threats to personal data. Once it is executed on a machine, it launches a sophisticated encryption algorithm that locks all your files, although it does not destroy them. The most common misconception is that anti-malware software can return files to their previous states. This is not true, however, and data remains locked after the malicious payload is deleted.

While regular data backups are the only secure method to recover your files after a ransomware attack, tools such as Data Recovery Pro can also be effective and restore at least some of your lost data.

About the author
Gabriel E. Hall
Gabriel E. Hall - Passionate web researcher

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