Roracoon Malware - Highly dangerous trojan
Trojan | 05/24/2018

Roracoon Malware – A highly dangerous threat with multiple points of attack.

About: Roracoon malware is categorized as a dangerous and destructive computer Trojan virus. It lowers system security, creates junk files, hijacks web browsers to show pop-up ads, tracks and steal user information and installs other dangerous computer viru...  Read More  

| Trojan | Roracoon Malware – A highly dangerous threat with multiple points of attack.

What is Roracoon Malware?

Roracoon malware is categorized as a dangerous and destructive computer Trojan virus. It sneaks into the system without user permission and can cause severe damage and various problems to the system.

A Trojan is a dangerous computer program that seeks backdoor entries to attack the system and other computers in the network. Its mode of infiltration is via emails containing tainted attachments. After these tainted attachments are opened a hidden code is activated that downloads more files for full activation of the threat.

Trojans target the data stored on the hard drive. It mainly attacks the OS loader and user specific files. Once these files are corrupted the system tasks start to behave erratically. Trojans are used by cyber criminals to gain access to the system and steal user information.

Roracoon malware enters the system using these methods;

  • Phishing emails that contain attachments – Phishing emails contain bait customized in such a way that the user is lured into opening these emails. These emails contain attached files that are opened in different programs. Once they are enabled for editing, these files execute a hidden code that activates the malicious program.
  • Clicking on unsecured links– While browsing the user may click on links that may not be secure and can lead to malicious files being downloaded on the system.
  • Fake system or program updates – Some websites display that a certain program needs update but it is a fake message and the user should avoid clicking it.
  • Peer to peer network file transfers – Transferring files over a network can propagate the infection from one system to another.
  • Connecting third party flash drives – External flash drives that contain infected files may cause the transfer of malware into the system.

Roracoon Malware – Threat Behavior

Roracoon malware infiltrates the system secretly. The first change that it makes in the system is to lower the system security settings by deactivating the various anti-virus tools, firewall and task manager.

After it has lowered the system security, it starts creating junk files and clogs the system space. Without the required CPU Memory, the legitimate system programs fail to perform their assigned tasks.

Roracoon Trojan virus also creates several fake Dllhost.exe processes which consume system memory and slows down the CPU’s processing speed. This leads to frequent system crashes, boot errors and hard drive failures.

It targets the following web browsers namely Google Chrome, Mozilla Firefox and Internet Explorer. Roracoon malware lowers the browser security setting and starts displays annoying pop-ups and banner ads, and causes page redirects without user approval.

The Roracoon malware secretly tracks user activities. It steals their vital and confidential data containing username, passwords, bank account & card details, and other personal information. This information can be then sold by hackers to a third party for money. Once this information lands in the hands of these malicious persons, they can use it to extort money or ruin the public image of the user.

Roracoon malware installs other variants of itself in the system by replicating itself. It also installs other dangerous virus and malware in the system which can cause the system to lag and freeze. These new threats can mess up the system entries and create more dangerous problems that are harder to track and remove.

Threat Summary

Name – Roracoon Malware

Browsers affected – Google Chrome, Mozilla Firefox, Internet Explorer

Targeted operating systems – Windows XP, Windows Vista, Windows 7, Windows 8.0/8.1, Windows 10

Category – Malware, Trojan

Symptoms – Deactivates system security, hijacks web browsers to display pop-ups, creates fake processes to occupy system memory which leads to frequent system crashes and unresponsive OS, tracks user data and steals personal information, installs other dangerous computer viruses in the system.

How to remove Roracoon Malware?

Roracoon malware should be immediately removed. If left unattended; it will create unknown issues that will eventually lead to system breakdown. The user should regularly check the system for unusual malfunctioning behavior or when the system tasks are not performed properly.

This is a malware which is hard to detect and remove. It leaves many copies of itself and even after a system clean and reboot; it may not be deleted from the system. Follow this step by step by step guide to remove Roracoon malware from your PC to keep it risk free.

STEP A – Reboot your system to Safe mode with Networking.

To restart the system to Safe Mode with Networking,  if already switched ON then follow the below steps:

Windows 7/ Vista/ XP

  1. Click on Windows icon present in the lower left corner of the computer screen.
  2. Select and click  Restart.
  3. When the screen goes blank, Keep tapping  F8  Key until you see the Advanced Boot Options window.
  4. With the help of arrow keys on keyboard, Select Safe Mode with Networking  option from the list and press the Enter Key. The system will then restart to Safe Mode with Networking.

5 Click on the username and enter the password (if any).

Windows 10 / Windows 8

  1. Press and hold the Shift Key and simultaneously click on the windows icon present in the lower left corner of your computer screen.
  2. While the Shift key is still pressed click on the Power button and then click on Restart.
  3. Now select Troubleshoot → Advanced options → Startup Settings.
  4. When the Startup Settings screen appears which is the first screen to appear after restart, select and click on Enable Safe Mode with Networking. The system will then restart to Safe Mode with Networking.
  5. Click on the username and enter the password.

Once the system starts, ensure to use an account with administrative privilege to access Safe Mode with Command Prompt.

After the user enters admin credentials, Command prompt window is displayed wherein you are entitled to enter the below commands:

  1. Type the command “sc delete roracoon” in the command prompt and press Enter.
  2. Type “exit” to exit the command prompt and restart the system in safe mode with command prompt.


STEP B – Remove the Roracoon Malware from the Task Manager.

  1. Launch the Task Manager Window by pressing Ctrl+ Shift+ Escape simultaneously. (The task manager window may vary depending on the OS ) OR bring the mouse cursor on the Task Bar (which is present at the bottom of the computer screen), right click on the empty space  and click on Task Manager.

                              Task Manager window for Windows 10

                                             Task Manager window for Windows 7

2 Right Click on the Suspicious File and select Open file Location.

3 In the File Location Screen that appears, Right click on the File and click on Delete, to delete the File permanently from the location.


  1. Open Task Manager window again by following the  steps mentioned above.
  2. Click on the Startup tab.
  3. Select the suspicious entry and click on the Disable button present at the bottom right corner of the window


  1. Open Task Manager window again by following the  steps mentioned above.
  2. Click on Services tab.
  3. Right click on the suspicious entry and click on Stop.

STEP C – Delete the Roracoon malware from the Registry key.

  1. Type “Regedit” in search box / Run Box, select it and press Enter.
  2. An authorization dialog box will appear, then you just have to click “Yes”. (The dialog box appearance may vary depending on OS used. For Windows 10 the the dialog box looks like the first screenshot and for windows 7 it appears like the second screenshot)
  3. In the registry editor, take the backup of the current registry settings before making any changes in case you want to revert to old settings later. For this, Click on File option in the menu and select Export. Save the entry at a known location.
  4. From the Menu, Click Edit and Select Find.
  5. Enter Roracoon Malware and click Ok in the search box.
  6. Select and delete suspicious  enteries.

STEP D – Remove the browser extensions created by Roracoon Malware.

Remove malicious extensions from your browser

Google Chrome

  1. Open Google Chrome and click on the three vertical dots (Google chrome menu icon ) i.e.Menu option which are located at the upper right corner of the Chrome Window.
  2. Find and click on More tools from the drop down menu that is displayed & select Extensions or you can open a Chrome window and type “chrome://extensions” in the address chrome menu options
  3. Check the developer mode option which is located opposite to extensions heading on the top of the Chrome window. By enabling the developer mode, additional details and option related to all the installed extensions will be displayed. One of the details that will be displayed is the ID. ID is the folder name created by the extension at the location “C:\Users\USERNAME\AppData\Local\Google\Chrome\User Data\Default\Extensions”.enable chrome developer mode
  4. Locate the extension you want to uninstall or delete. Copy and paste the folder name opposite to the ID Tag of that extension into a notepad file. In this case the folder name is “Roracoon Malwarecopy the extension folder name in Chrome
  5. Now, uncheck the enabled option next to the extension in question. Make sure you also click the trash icon to delete the extension from the browser. It is important to note that even after uninstalling and deleting the extensions from the browser, the extension might not uninstall properly. Thus, it is a good practice to make sure that we have deleted the folder as mentioned in step 3.delete the malicious extension from Chrome
  6. Make sure that you have made the hidden files and folders visible.
  7. Open My Computer and go to “C:\Users\USERNAME\AppData\Local\Google\Chrome\User Data\Default\Extensions”. Now, look for folder with the name as specified in Step 4 i.e. “Roracoon Malware”. Delete the folder if hidden files and folder
  8. Close and reopen the browser. It is also advisable to restart your computer once done.

Mozilla Firefox

  1. Open Mozilla Firefox, click on three horizontal lines (Mozilla icon ) at the top right corner of the Firefox Window and select the Add-ons option.Mozilla Firefox menu
  2. On the Add-ons manger page, select and click on the Extensions tab as shown below.FireFox manage Add-ons
  3. Find the extensions related to Roracoon Malware and click on the remove button.
  4. In addition, try to remember how the extension got downloaded on your computer system. If this extension was bundled with some other software, then make sure to delete that as well.

Internet Explorer

  1. Open Internet Explorer, Click on the Gear icon (IE menu icon ) which is at the top right corner of the Internet Explorer Window.
  2. From the newly appeared dropdown menu, click on the option that reads Manage Add-ons.Internet explorer settings menu
  3. A new window will appear on the screen. On this window choose the option that reads Toolbar and Extensions. Under the Show option, select the option that reads “All add-ons”. This option will allow you to see all the browser extensions. Mozilla-manage add-ons toolbars and extensions page
  4. Select the Extension related to Roracoon Malware and click on the Disable button which is at the bottom right of the computer screen.

IE toolbar and extensions in Manage add-ons

Apple's Safari

  1. On your Mac Desktop, click on the option that reads “Safari”.
  2. A drop down menu will appear as shown below. From this menu chose the option that reads “Preferences”.Safari menu extension options
  3. The Preferences window will appear on the screen, where the list of all your safari extensions will be shown.Safari extensions window
  4. On the list displayed at the left side of the screen, select the Extension you want to uninstall.
  5. Click on the Uninstall button to get rid of the extension.uninstall a program from Safari

STEP E – Uninstall the Roracoon malware from the Control Panel.

Note: Before we begin, try to remember how the extension got downloaded  on your computer system. Generally, these programs come bundled with free applications that we download off the internet. It is a good practice to locate and uninstall such programs while removing the Browser Hijacker/ Extensions.

Windows XP

  1. Click on the “Start” button on the bottom left corner of your screen. A Start menu will be displayed as shown below. From this menu select the option that reads “Control Panel”.Windows XP start menu image
  2. In the window that will be displayed, click the option “Switch to classic view”.Control panel switch to classic view
  3. This will display all the options/icons available to you. From the displayed icons, click on the icon that reads “Add or Remove Programs”.Windows XP add or remove a program
  4. Select the “Uninstall a program” option from the “Programs” category. A list will populate on the screen displaying all the programs.Uninstall a malicious program
  5. Select the programs related to Roracoon malware and click on the Uninstall button.Windows XP confirmation window

Windows 7/Vista

  1. Right click on the “Start” button located at the lower left corner of the screen. From the Start menu, click on “Control Panel”.Windows 7 start menu
  2. The “Control Panel” Window will be displayed on the screen. Click on “Uninstall a Program” option from the “Programs” category.Uninstall a program from windows 7
  3. The “Programs and Features” window will be displayed on the screen. A list will populate on the screen displaying all the programs.
  4. Scroll though the list of programs and select the programs related to Roracoon Malware and then click on the “Uninstall” button.uninstall a program in Windows 7

Windows 8/10

  1. Right click on the “Windows logo” on the lower left side of the computer screen. From the drop down menu, select and click on “Control Panel”.Windows 10 start menu
  2. The “Control Panel” window will be displayed. From this window select “Uninstall a program” option form the “Programs” category.Control panel
  3. A list will populate on the screen displaying all the programs and features option
  4. Select the programs related to Roracoon Malware and click on the “Uninstall” button.uninstall a program in windows 8
  5. In the confirmation box, click on the box that reads “OK” to save changes.

STEP F – Check the system configuration settings.

  1. Type “Msconfig” in search box / Run Box, select it and press Enter.
  2. Click on “Services” Tab and click on “Hide all Microsoft services”.
  3. Select Roracoon Malware from the list of remaining services and disable it by removing the tick mark from the checkbox and click on Apply button.

Windows 7

  1. Click on the next tab – “Startup”.
  2. Find any blank or suspicious entry or the entry with Roracoon Malware mentioned and remove the check mark.
  3. Click on Apply button and then click on OK.

Windows 10

  1. Click on the next tab – “Startup”.
  2. Take the mouse cursor to ‘Open task Manager‘ link and click on it.  This opens the Task Manager window.
  3. Find any blank or suspicious entry or the entry with Roracoon Malware mentioned and click on it.
  4. Then click on Disable button.

Tips to prevent your computer system from getting infected 

  1. Keeping the Operating System Updated- In order to remain protected and avoid such infections, it is recommended to keep your Operating System updated by enabling the automatic update on your system. The systems with outdated or older versions of Operating System become an easy target for the attackers.
  2. Resist clicking on spam emails – One of the major techniques used for malware distribution is forwarding spam emails to the user. The system gets infected as soon as the user clicks on the attachment. These mails appear to be genuine, so be aware and resist falling for these tricks.
  3. Keep an eye on third party installations- It is quite important that you take due care while installing any third party applications for they are major source of such infections. Such malware programs come bundled with the free applications thereby requiring the user to remain cautious.
  4. Regular periodical backup- In order to keep your data and files safe, it is recommended to take regular back up of all your data and files either on an external drive or cloud.
  5. Use Anti-Virus Protection- We strongly recommend the use of antivirus protection/internet security in your PC like Bull Guard Internet Security and Avira so that it remains safe.
  6. Enable the Ad Blocker/Popup Blocker in your browser- Enabling the popup blocker/ ad blocker in your chosen browser will help you to stay protected from annoying adware.

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