Xfirefox.exe

Posted by Max Lehmann on March 29, 2017

What is Xfirefox.exe?

Xfirefox.exe is a highly malicious computer infection that our malware analysts have classified as a Trojan and, therefore, recommend that you remove it. Their research has shown that this program is capable of stealing sensitive information that can jeopardize your personal privacy. Furthermore, they found that it is capable of loading promoted websites by force which is an intrusive action but, more importantly, the promoted sites can be of malicious nature. In short, this application is bad news, but if you want to find out more about it, then please read this whole article.

Where does Xfirefox.exe come from?

According to our malware analysts, Xfirefox.exe was most definitely created by cyber criminals with the intention of using this program for criminal activities. These secretive developers are said to bundle this program with bad software installers that install this program onto your computer by stealth. These software installers are applications featured on free software hosting websites that you need to download and run in order to download he program that you initially wanted because those sites do not offer direct downloads of their software on purpose. As a result, the downloaders can drop this program’s executable in %APPDATA% or %APPDATA%\JAVA. In addition, we would like to point out that Xfirefox.exe is not the only name by which its main executable can go by. Our malware analysts say that this Trojan can also be named run32dil.exe, firefox.exe, or Stub1000_1_19_2016.exe. In order to run on system startup, this Trojan will inject a registry subkey at HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run with the value name of Microsoft. Now, let us take a look at how this particular program works.

What does Xfirefox.exe do?

According to our malware analysts, Xfirefox.exe installs Firefox Developer Addition that is set to open promoted websites at random. The URLs that this program is set to promote are stored at C:\Windows\SysWow64\prev.dat. This program impersonates the Firefox browser and opens its promoted websites at random. We urge you not to trust the ads because they can come from unknown sources and, thus, compromise your computer’s security.

However, the most important aspect about Xfirefox.exe we need to discuss is its ability to steal information. Malware researchers say that this program can steal your personal information. This information can include your passwords, logins, banking credentials, and so on. They say that this programs information collection can extend to recording your key presses in order to extract the aforementioned information. So, this program’s developers might be able to gain access to everything that you type into your keyboard. This program can cause you problems beyond belief is cyber criminals were to obtain all of your logins, passwords, and other sensitive information. Therefore, we suggest you act quickly and delete this malicious software immediately.

How to remove Xfirefox.exe

As you can see, Xfirefox.exe is one nasty piece of programming that was created with the intention of generating advertising revenue and stealing your personal information. We recommend that you remove it and if you want to do that, we invite you to make use of the instructions below. Nevertheless, you can also get an antimalware application such as SpyHunter that can detect and delete this malware on your behalf.

Removal Guide

Press Win+E keys.
Enter the following addresses in File Explorer’s address box, and press Enter.
- %APPDATA%
- %APPDATA%\JAVA
Locate either firefox.exe, Xfirefox.exe, un32dil.exe or Stub1000_1_19_2016.exe
Right-click it and click Delete.
Empty the Recycle Bin.