Trojan DOS/Rovnix.D

Follow the guide on this post to remove Trojan DOS/Rovnix.D virus from infected PC. Download and scan the computer with suggested tool to delete all files dropped by the Trojan.

Trojan DOS/Rovnix.D is a harmful threat that can execute various payloads once run on the computer. It has many variants, which each of them are made to run unique tasks. For instance, Trojan DOS/Rovnix.D was dropped by another Trojan from the same group. When run on the computer it is tasked to run a malware.

Normally, user is vulnerable to this threat if they keep on downloading files from risky peer-to-peer networks. Clicking on links from social networking sites and emails may also lead to Trojan DOS/Rovnix.D virus infection. A simple visit to compromised site that prompts you to download program is also another way how it can enter the computer.

Once you execute Trojan DOS/Rovnix.D, it can make changes on the computer. Windows registry can be filled with entries that call the Trojan on each Windows start-up. Files are also placed on various folders of the PC, especially Temp and System directory. Together, all of these components are vital for the Trojan to gain control of the infected machine. Once everything is in place, Trojan DOS/Rovnix.D writes malicious code to the boot sector if computer is running under NTFS file system. This code
attempts to execute another malware on every Windows boot-up.

With the explanation above, you may notice how danger this threat is. Thus, we highly suggest removal of Trojan DOS/Rovnix.D once you see any sign of its presence.

Trojan DOS/Rovnix.D

How to Remove Trojan DOS/Rovnix.D

Step 1 : Download Microsoft Safety Scanner and Run a Scan

NOTE: We suggest that you PRINT or BOOKMARK this guide. There are steps that we may have to restart the computer in order to successfully remove the threat.

If you have previous version of Microsoft Safety Scanner that is more than 10 days old, please disregard it. Download a new copy from the official web site. Every 10 days, Microsoft will release the latest edition of this tool with updated anti-virus definitions to ensure that it will detect even most recent malware threats.

1. Download Microsoft Safety Scanner by clicking the button below and save it on your desktop. This is a free tool from Microsoft that offers on-demand scanning. It helps remove computer infection such as malware, virus, and Trojan.

Click to Download

2. Restart Windows in Safe Mode.

Boot in Safe Mode on Windows XP, Windows Vista, and Windows 7 system
a) Before Windows begins to load, press F8 on your keyboard.
b) It will display the Advanced Boot Options menu. Select Safe Mode.

Start computer in Safe Mode using Windows 8
a) Before Windows begins to load, press Shift and F8 on your keyboard.
b) On Recovery interface, click on 'See advanced repair options'.
c) Next, click on Troubleshoot option.
d) Then, select Advanced options from the list.
e) Lastly, please choose Windows Startup Settings and click on Restart. When Windows restarts, you will be send to a familiar Advanced Boot Options screen.
f) Select Safe Mode from the selections menu.

Safe Mode

3. Once Windows starts in Safe Mode, locate the file of Microsoft Safety Scanner (msert.exe) that you have downloaded earlier. Double-click to run the file.

Icon of MSS

4. When it shows End user license agreement, please accept and click Next to continue.

5. On Scan Type window, please select Full scan. The tool will scan the entire system. This is ideal to detect and remove all threats that are present on the computer.

Image of MS Safety Scanner in full scan

6. Click Next to begin the scan. This process will take a while to finish. Please be patient and let MSS complete the scan procedure.

MSS while Scanning the computer

7. Once the scan operation ends, it will provide a report for identified threats. Please remove all the threats.
8. Reboot the computer and run another scan after Windows boots normally to make sure that Trojan DOS/Rovnix.D is gone. You may now restart Windows normally.

Step 2 : Double-check for Remnants of Trojan DOS/Rovnix.D using Malwarebytes Anti-Malware

This guide requires a tool called Malwarebytes' Anti-Malware. It is a free tool designed to eradicate various computer infections including Trojan DOS/Rovnix.D. MBAM scanner and malware removal tool is distributed for free.

1. In order to completely remove Trojan DOS/Rovnix.D, it is best to download and run the recommended tool. Please click the button below to begin download.

Download Tool

2. After downloading, double-click on the file to install the application. If you are using Windows Vista or Windows 7, right-click on the file and select 'Run as administator' from the list.
3. When User Account Control prompts, please click Yes to proceed with the installation.

4. Follow the prompts and install as 'default' only. There are no changes needed during the installation process.
5. Before the installation procedure ends, MalwareBytes Anti-Malware will ask for database update, please proceed.

MalwareBytes Anti-Malware Update

6. Click Finish button after installation. Program will run automatically run and you will be prompted to update if newer version of database is available.
7. At this moment, close MalwareBytes Anti-Malware and proceed with the next step.

Run a thorough scan in Safe Mode to remove Trojan DOS/Rovnix.D

8. Remove all media such as floppy drive, cd, dvd, and USB devices. Then, restart the computer in Safe Mode using the procedures above.

9. Once Windows is running on Safe Mode, find the icon of MalwareBytes Anti-Malware. Double-click to launch the program.
10. Choose Perform full scan on scanner's console to ensure that it thoroughly check the PC for any presence of Trojan DOS/Rovnix.D and other forms of threats. Click the Scan button to start.

MBAM Scan

11. Once the scan has completed, Malwarebytes Anti-Malware will issue a list of identified threats. Mark all threats and click on Remove Selected.
12. If it prompts to restart the computer, please reboot Windows normally.

Alternative Removal Procedure for Trojan DOS/Rovnix.D

Use Windows System Restore to return Windows to previous state

During an infection, Trojan DOS/Rovnix.D drops various files and registry entries. The threat intentionally hides system files by setting options in the registry. With these rigid changes, the best solution is to return Windows to previous working state is through System Restore.

To verify if System Restore is active on your computer, please follow the instructions below to access this feature.

How to Access System Restore on Windows XP, Windows Vista, and Windows 7

a) Go to Start Menu, then under 'Run' or 'Search Program and Files' field, type rstrui.
b) Then, press Enter on the keyboard to open System Restore Settings.

rstrui-win7

How to Open System Restore on Windows 8

a) Hover your mouse cursor to the lower left corner of the screen and wait for the Start icon to appear.
b) Right-click on the icon and select Run from the list. This will open a Run dialog box.
c) Type rstrui on the 'Open' field and click on OK to initiate the command.

rstrui-win8

If previous restore point is saved, you may proceed with Windows System Restore. Click here to see the full procedure.

Ways to Prevent Trojan DOS/Rovnix.D Infection

Take the following steps to protect the computer from threats. Suggested tools and security setup within installed software helps prevent the same attack on your PC.

Install an effective anti-malware program

Your first line of defense would be an effective security program that provides real-time protection. We have a list of anti-malware program that are tried and tested. It does not only scan files but also monitors your Internet traffic and is extremely active on blocking malicious communication. Click on the button below to download our recommended anti-malware program.

Get Protection Software

Always update your installed software

Software vendors constantly releases updates for programs whenever a flaw is discovered. Getting the updates makes the computer more secured and help prevents Trojan, virus, malware, and Trojan DOS/Rovnix.D similar attacks. If in case your program is not set for instant update, it usually offered from vendor's web site, which you can download anytime.

Maximize the security potential of your Internet browser

Each browser has their own feature where in you can adjust the security settings that fit your browsing habit. We highly encourage you to maximize the setup to tighten the security of your browser.

Apply full caution when using the Internet

Internet is full of fraud, malware, and many forms of computer threats including Trojan DOS/Rovnix.D. Implement full caution with links that you may receive from emails, social networking sites, and instant messaging programs. It might lead you to malicious sites that can cause harm to your computer. Avoid strange web sites that offers free services and software downloads.