|Short Description||May download other malware on the computer, collect keystrokes, allow third-party access, generate traffic to other sites and others, control drivers and PC hardware, etc.|
|Symptoms||Unfamiliar processes, PC Slowdowns, Disabled Firewall, etc.|
|Distribution Method||Spam mails. MiTM attacks, malicious redirects.|
|Detection tool||Download Malware Removal Tool, to See If Your System Has Been Affected By Trojan:Win32/Dorv.B!rfn|
This particular type of trojan is reported by ESG security researchers to distribute mainly via drive-by downloads in the form of Java or Flash Player updates. It could also be embedded with free software downloaded from unfamiliar third parties. It is believed to be used for several different purposes – monitoring the user’s activities, collecting keystrokes and obtaining passwords and download other malware to the infected computer. Most Trojans run active processes in the Windows Task Manager that are hidden from the user. Experts advise to take immediately measures in case you believe you have a trojan horse in your machine since it becomes utterly defenseless.
Trojan:Win32/Dorv.B!rfn – How Did I Get Infected With?
This particular type of malware may affect user PCs via several different ways. One of them is via massive spam mail campaigns that contain infected attachments in them. Another method of infection is by being redirected to a malicious web link in case you have an installed ad-supported application or any similar PUP (Potentially Unwanted Program) on your computer. PUPs may be indirectly dangerous, and they install themselves on users’ PCs in the background of the setup programs of third-party downloaded freeware. Third-party software providers may bundle software for profits and they usually write it down in their EULA agreements. In order to quickly find bundled applications in third-party installers, it is advisable to check license agreements with particular checking software, like EULAlyzer, for example.
More About Trojan:Win32/Dorv.B!rfn
This trojan is reported by security investigators to focus on the %temp% folder, creating files there with the purpose of evading security scans. Although it is not confirmed the Trojan may use process migration to deceive antivirus programs that they have eliminated it, while in reality it may only transfer the malicious process to another concealed file within your hard drive.
This Trojan is believed to install dangerous ransomware, like CryptoWall to encrypt user data and extort victims for funds. It is also supposed to disable all firewalls in the affected machine with the sole purpose of allowing other parties to access the computer from a distance. More to it than that it may use mechanisms that enable it to generate traffic to other websites, mainly for the purpose of profit making.
Also, this Trojan may assume partial control over the PC hardware, like web camera, cd/DVD player, keyboard, mouse control and others. Experts strongly advise downloading an anti-malware tool in case you believe you have the threat because you may become an unsuspecting accomplice to this vile threat and may endanger other devices.
Deleting this Trojan in full may be a bit more complicated task. The trick is to catch the threat in time, before it has downloaded other malicious files on the computer, like a rootkit virus for example. It is highly recommended to backup your data and reinstall you Windows completely in case you cannot establish for how long you have had this threat present. After that you should employ an external firewall to double your protection like ZoneAlarm and an updated anti-malware program that will both assist in the fast detection of any new threats on your computer.
In case you do not or cannot reinstall your operating system, it is advisable to follow the step-by-step instructions below to successfully elicit the threat from your machine.
1. Start Your PC in Safe Mode to Remove Trojan:Win32/Dorv.B!rfn.
For Windows XP, Vista, 7 systems:
1. Remove all CDs and DVDs, and then Restart your PC from the “Start” menu.
– For PCs with a single operating system: Press “F8” repeatedly after the first boot screen shows up during the restart of your computer. In case the Windows logo appears on the screen, you have to repeat the same task again.
– For PCs with multiple operating systems: Тhe arrow keys will help you select the operating system you prefer to start in Safe Mode. Press “F8” just as described for a single operating system.
3. As the “Advanced Boot Options” screen appears, select the Safe Mode option you want using the arrow keys. As you make your selection, press “Enter“.
4. Log on to your computer using your administrator account
While your computer is in Safe Mode, the words “Safe Mode” will appear in all four corners of your screen.
For Windows 8, 8.1 and 10 systems:
Step 1: Open the Start Menu
Step 2: Whilst holding down Shift button, click on Power and then click on Restart.
Step 3: After reboot, the aftermentioned menu will appear. From there you should choose Troubleshoot.
Step 4: You will see the Troubleshoot menu. From this menu you can choose Advanced Options.
Step 5: After the Advanced Options menu appears, click on Startup Settings.
Step 6: Click on Restart.
Step 7: A menu will appear upon reboot. You should choose Safe Mode by pressing its corresponding number and the machine will restart.
2. Remove Trojan:Win32/Dorv.B!rfn automatically by downloading an advanced anti-malware program.
To clean your computer you must download an updated anti-malware program on a safe PC and then install it on the affected computer in offline mode. After that you should boot into safe mode and scan your computer to remove all Trojan:Win32/Dorv.B!rfn associated objects.
- Guide 1: How to Remove Trojan:Win32/Dorv.B!rfn from Windows.
- Guide 2: Get rid of Trojan:Win32/Dorv.B!rfn from Mac OS X.
- Guide 3: Remove Trojan:Win32/Dorv.B!rfn from Google Chrome.
- Guide 4: Erase Trojan:Win32/Dorv.B!rfn from Mozilla Firefox.
- Guide 5: Uninstall Trojan:Win32/Dorv.B!rfn from Microsoft Edge.
- Guide 6: Remove Trojan:Win32/Dorv.B!rfn from Safari.
- Guide 7: Eliminate Trojan:Win32/Dorv.B!rfn from Internet Explorer.
How to Remove Trojan:Win32/Dorv.B!rfn from Windows.
Step 1: Boot Your PC In Safe Mode to isolate and remove Trojan:Win32/Dorv.B!rfn
Step 2: Uninstall Trojan:Win32/Dorv.B!rfn and related software from Windows
Here is a method in few easy steps that should be able to uninstall most programs. No matter if you are using Windows 10, 8, 7, Vista or XP, those steps will get the job done. Dragging the program or its folder to the recycle bin can be a very bad decision. If you do that, bits and pieces of the program are left behind, and that can lead to unstable work of your PC, errors with the file type associations and other unpleasant activities. The proper way to get a program off your computer is to Uninstall it.
Step 3: Clean any registries, created by Trojan:Win32/Dorv.B!rfn on your computer.
The usually targeted registries of Windows machines are the following:
You can access them by opening the Windows registry editor and deleting any values, created by Trojan:Win32/Dorv.B!rfn there. This can happen by following the steps underneath:
Get rid of Trojan:Win32/Dorv.B!rfn from Mac OS X.
Step 1: Uninstall Trojan:Win32/Dorv.B!rfn and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Trojan:Win32/Dorv.B!rfn via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
You can repeat the same procedure with the following other Library directories:
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 2: Scan for and remove malware from your Mac
When you are facing problems on your Mac as a result of unwanted scripts, programs and malware, the recommended way of eliminating the threat is by using an anti-malware program. Combo Cleaner offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Remove Trojan:Win32/Dorv.B!rfn from Google Chrome.
Step 1: Start Google Chrome and open the drop menu
Step 2: Move the cursor over "Tools" and then from the extended menu choose "Extensions"
Step 3: From the opened "Extensions" menu locate the unwanted extension and click on its "Remove" button.
Step 4: After the extension is removed, restart Google Chrome by closing it from the red "X" button at the top right corner and start it again.
Erase Trojan:Win32/Dorv.B!rfn from Mozilla Firefox.
Step 1: Start Mozilla Firefox. Open the menu window
Step 2: Select the "Add-ons" icon from the menu.
Step 3: Select the unwanted extension and click "Remove"
Step 4: After the extension is removed, restart Mozilla Firefox by closing it from the red "X" button at the top right corner and start it again.
Uninstall Trojan:Win32/Dorv.B!rfn from Microsoft Edge.
Step 1: Start Edge browser.
Step 2: Open the drop menu by clicking on the icon at the top right corner.
Step 3: From the drop menu select "Extensions".
Step 4: Choose the suspected malicious extension you want to remove and then click on the gear icon.
Step 5: Remove the malicious extension by scrolling down and then clicking on Uninstall.
Remove Trojan:Win32/Dorv.B!rfn from Safari.
Step 1: Start the Safari app.
Step 2: After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.
Step 3: From the menu, click on "Preferences".
Step 4: After that, select the 'Extensions' Tab.
Step 5: Click once on the extension you want to remove.
Step 6: Click 'Uninstall'.
A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the Trojan:Win32/Dorv.B!rfn will be removed.
Eliminate Trojan:Win32/Dorv.B!rfn from Internet Explorer.
Step 1: Start Internet Explorer.
Step 2: Click on the gear icon labeled 'Tools' to open the drop menu and select 'Manage Add-ons'
Step 3: In the 'Manage Add-ons' window.
Step 4: Select the extension you want to remove and then click 'Disable'. A pop-up window will appear to inform you that you are about to disable the selected extension, and some more add-ons might be disabled as well. Leave all the boxes checked, and click 'Disable'.
Step 5: After the unwanted extension has been removed, restart Internet Explorer by closing it from the red 'X' button located at the top right corner and start it again.