Effective Trojan:DOS/Alureon.A Removal Guides

Trojan:DOS/Alureon.A attacks my computer when I download and install a game application downloaded from the Internet. This Trojan horse has caused my computer to perform slowly and crash down occasionally. MSE can detect it but can’t remove it completely. I have no ideas how to deal with this threat now. Is there another effective way to free my PC from Trojan:DOS/Alureon.A infection?

What Is Trojan:DOS/Alureon.A?
Trojan:DOS/Alureon.A is a computer Trojan horse that is of high threat level. It may cause irremediable damage to the infected computer system and make it almost unstable. This Trojan horse is a member of the Alureon family, which has targeted numerous computers and brought much damage and trouble to the users. The main task of this Trojan horse is to record users’ online activities and steal sensitive data and information. It is able to slip into your computer by exploiting system loopholes and software flaws. It can also take the chance to break into your computer when you are opening unknown attachment of spam emails, browsing websites that have been hacked by cyber hackers, downloading software containing malicious codes, clicking on suspicious links or pop-up ads. When Trojan:DOS/Alureon.A gets installed on your computer, it will damage your or infect critical system files until your computer system crashes down. It will also attempt to disable your antivirus program in order to escape from quick detection and removal. This Trojan horse injects its own start-up registry entries to Windows registry, so that it can run automatically once your computer boots up. When running in the background of the system, it largely occupies precious system resources, which causes your computer to run extremely slowly. In addition, it modifies different types of settings in the system, causing various unexpected problems. Trojan:DOS/Alureon.A may also bring other malware such as viruses, worms and adware and spyware to your computer, which puts the infected system into a more dangerous situation. What’s more, it can spy on you, collect your personal information and then transmit that information to its creators. Since this Trojan horse is a highly risky threat, you need to eliminate it from your computer without any delay.

Consequences of Trojan:DOS/Alureon.A Infection
Slow Computer Speed: The Trojan horse and other related malware will take up high CPU usage when they are running in the system, which causes your computer to run slowly and sluggishly.

Frequent System Crashes: This Trojan horse will randomly damage\corrupt the system files and disable critical system processes, and this will cause the system to crash, freeze or shut down from time to time.

Sluggish Network: The Trojan horse and other malware will use your network bandwidth to send the information & data collected to the remote cyber hackers or send spam emails to people in your email contact list.

Browser Redirection: The Trojan horse will modify browser settings automatically, causing the browser to be constantly redirected to particular websites.

Numerous Ad or Security Alert Pop-ups: The Trojan horse will download and install many adware-supported programs on your computer, which will keep popping up lots of commercial ads and bogus security alerts on your computer screen in order to mislead you into buying certain products or services.

Identify Theft & Data Loss: The Trojan horse will monitor your activities on the computer and collect any useful information and data furtively. Then, it sends what it has collected to the remote hackers in the form of email.

Effective Removal Guides
When your computer is infected by Trojan:DOS/Alureon.A, you may first consider using your antivirus program to remove it completely. However, you may sadly find that your antivirus program doesn’t help remove the Trojan horse, even though it has significant functions which enable it to detect and remove many types of threats out of your computer. Why? This is because that the Trojan horse is designed with rootkit technique which allows it to hide deep in the infected system and evade detection and removal by a common antivirus program. Besides, this Trojan horse is able to deactivate your antivirus program by killing its related process. In this case, you need to find out other methods to deal with the Trojan horse.

Method 1: Manually Remove the Trojan Horse by Following the Guide.

Method 2: Automatically Remove the Trojan Horse by Using SpyHunter.

Note: Manually removing the Trojan horse is a task of  high complexity and it does not always guarantee a complete removal. So, we do not recommend novice computer users use the method. Actually, using a professional malware removal tool is a safer and more effective method. Please click and download a powerful removal tool, if you are not sure how to perform the manual removal.

Method 1: Manually Remove the Trojan Horse by Following the Guide.

Step 1: Restart your computer and keep tapping F8 key until Advanced Boot Options shows up on the screen. Use the up and down arrow keys to highlight the “Safe Mode with Networking” option and then press Enter key to proceed.

Step 2: Launch Windows Task Manager by pressing CTRL + Shift + ESC keys simultaneously to or right-clicking on the taskbar and selecting the “Task Manager”. Click “Processes” tab, and scroll down to look for any running processes related to Trojan:DOS/Alureon.A. Then stop the selected processes by clicking on “End Process” button.

Step 3: Select the Start menu and open Control Panel. Click “Appearance and Personalization” and select “Folder Option”. Under “View” tab, check “Show hidden files and folders”, uncheck “Hide protected operating system files (Recommended)”, and then click the OK button.

Step 4: Delete all the files associated with Trojan:DOS/Alureon.A from your computer.

%Temp%\random.exe
%AllUsersProfile%\random.exe
%AllUsersProfile%\Application Data\random.exe
%AppData%\Roaming\Microsoft\Windows\Templates\random.exe

Step 5: Click Start menu, type “regedit” into the search box and click the program named “regedit.exe” from the results list. This will open the Registry Editor. Then, search for all the registry entries related to the Trojan horse and delete them all.

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\random
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\random
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run\random.exe

Method 2: Automatically Remove the Trojan Horse by Using SpyHunter.
SpyHunter is a professional malware removal tool that will detect and remove many types of malware such as Trojan horses, worms, adware, viruses, rootkits from your PC. To safely and effectively get rid of Trojan:DOS/Alureon.A, you can rely on this powerful removal tool. Please follow the steps below:

Step 1: Click on the download button below and save the file to your desktop. Then, run the downloaded file and proceed to download the SpyHunter installer.
Step 2: Once the SpyHunter installer is completely downloaded, select the language to proceed with the installation. After that accept the SpyHunter terms and wait till the installation finishes. Click the “Finish” button and you will see the home page of SpyHunter.
Step 3: Now click on “Scan Computer Now” to scan the system for Trojan:DOS/Alureon.A and any other related computer threats.
Step 4: Once the scanning completes, SpyHunter will list all the detected threats residing in the system. Then, you need to remove all of the threats by clicking “Fix Threats’” button.

How to Prevent Malware Attacks
Regularly update your operating system and all your software (like Java, Adobe and QuickTime).
Install a reliable anti-malware program such as SpyHunter on your computer.
Make sure that your firewall is enabled, especially when you are surfing online.
Never open an attachment from someone you don’t know or if an email looks suspicious.
Keep away from websites known to contain malware, like porn websites.
Never open links to websites that you don’t recognize or that are sent from people you don’t know.
Always make sure you scan the removable drives before installing them on your computer.

Conclusion
Trojan:DOS/Alureon.A can pose a great threat to users as it is specially designed by cyber hackers to damage the infected computers terribly and also steal confidential information and valuable data of the victims. Leaving alone this Trojan horse in your computer will not only result in various computer problems, but also increase the chance of letting other malware break into your PC and suffering from identify theft as well as data loss. So, you should remove this threat as quickly as possible. If your antivirus program is not able to deal with the Trojan horse effectively, you can try the manually removing it or directly download and use an advanced malware removal tool.

Important Note: You should back up your registry and important data before making any changes to your system for the security reason. The manual removal is complicated and risky. Any mistake during the removal process may result in irreparable system damage. To ensure a safe and complete removal of Trojan:DOS/Alureon.A, it is highly recommended that you download and use a professional malware removal tool.