How to Remove Trojan:Win64/Sirefef.Y?

Basic Information of Trojan:Win64/Sirefef.Y

Trojan:Win64/Sirefef.Y is a harmful Trojan horse which is a component of Win32/Sirefef. This virus is also detected as Trojan:Win64/Sirefef.Y, Trojan.Sirefef.FR and ZeroAccess. This is a dangerous threat that uses advanced stealth techniques to get into the computer.

Trojan:Win64/Sirefef.Y comes form a multi-component family of malware that moderates your Internet experience by changing search results and generating pay-per-click advertising revenue for its controllers. The family consists of multiple parts that perform different functions, such as downloading updates and additional components, hiding existing components, or performing a payload.

Once Trojan:Win64/Sirefef.Y gets into your computer, it will change the computer registry entries, system files and start up items. It will run automatically at the background to take up the system resource and turn up the CPU to slow down the PC performance. Trojan:Win64/Sirefef.Y is capable to open the backdoor for many other computer threats to get into the computer.

What’s worse, it will also allow the remote hackers to access the target computer. Your computer will be in a high risk of bring destroyed.To protect your computer, you should remove Trojan:Win64/Sirefef.Y from the computer immediately. And it is highly recommended to keep a powerful anti-virus like Spyhunter to make a full scan might find other malware that is hiding on your PC.

Instructions on how to remove Trojan:Win64/Sirefef.Y

Solution 1. Follow Manual Removal Guide to Remove Trojan:Win64/Sirefef.Y

Solution 2.Follow Automatic Removal Guide to Remove Trojan:Win64/Sirefef.Y

Solution 1. Follow the Manual Removal Guide Below.

a: Get into the safe mode with networking

<Restart your computer. As your computer restarts but before Windows launches, tap “F8″ key constantly. Use the arrow keys to highlight the “Safe Mode with Networking” option, and then press ENTER>

b: follow the below guide to continue

Step 1- Open Windows Task Manager and close all running processes.

( Methods to open Task Manager: Press CTRL+ALT+DEL or CTRL+SHIFT+ESC or Press the Start button->click on the Run option->Type in taskmgr and press OK.)
Step 2- Show all hidden files

Open Control Panel from Start menu and search for Folder Options. When you’re in Folder Options window, please click on its View tab, check Show hidden files and folders and uncheck Hide protected operating system files (Recommended) and then press OK.

Step 3- Remove these associated Files on your hard drive such as:

%CommonAppData%\<random>.exe
C:\Windows\Temp\<random>.exe
%temp%\<random>.exe
C:\Program Files\<random>
Step 4- Open the Registry Editor and delete the following entries:

(Steps: Hit Win+R keys and then type regedit in Run box and click on OK)

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "<random>" = "%AppData%\<random>.exe"
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run "<random>" = "%AppData%\<random>.exe"
Solution 2.Follow Automatic Removal Guide Below

SpyHunter is a world-famous real-time malware protection and removal tool, which is designed to detect , remove and protect your PC from the latest malware attacks, such as Trojans, worms, rootkits, rogue viruses, browser hijacker, ransomware, adware, key-loggers, and so forth. If the above guide is difficult to follow and you are not familiar with manual removal operation, it is suggested to download SpyHunter from here to help to remove Trojan:Win64/Sirefef.Y right now.

a: Get into the safe mode with networking

<Restart your computer. As your computer restarts but before Windows launches, tap “F8″ key constantly. Use the arrow keys to highlight the “Safe Mode with Networking” option, and then press ENTER>

b: follow the below guide to continue

Step 1. Download and install the removal tool Spyhunter.
Step 2. Follow the installation processes:

a) Execute the program.
b) Accept the License Agreement to continue.
c) Wait to finish installing.

Step 3. Run SpyHunter and start a full scan on your computer.

Step 4. After scanning, show scan result and then clean all detected items completely.

Optimize and Speed up Your PC by using RegCure Pro

If you are still worried about the left over of Trojan:Win64/Sirefef.Y and want to clean all the unwanted registry entries or want to optimize your computer, it is recommended to use RegCure Pro. There are many things that can slow down your PC. RegCure Pro addresses all of the common problem areas to get your computer running better than ever. RegCure Pro also features fantastic tools so you can optimize your PC and solve other common computer frustrations!

Step 1. Install and launch RegCure Pro on your PC.
Step 3. Select “Yes” to download and install RegCure Pro.
Step 4. After completely install, you can run the RegCure Pro program.
Step 5.Scan your computer for errors
Step 6. After scanning, choose the items you want to clean and fix.

Kindly Remind: Trojan:Win64/Sirefef.Y is a dangerous Trojan horse which should be removed immediately. Hope the guide could help to remove Trojan:Win64/Sirefef.Y! If you could not solve the problem manually by yourself, you are sincerely suggested to start an automatic removal with removal tool – SpyHunter to get the issue fixed quickly and safely. And you can download RegCure Pro to optimize your computer.