Easy Method to Remove Win32/Sirefef ZeroAccess - Remove Trojan Horse from Your Computer

I notice my PC has become more and more awkward and sluggish recently. The system often crashes or shuts down without rhyme or reason. Meanwhile, the antivirus program which is previously installed on the PC keeps generating alerts to warn that my computer has been infested by Win32/Sirefef ZeroAccess but it cannot solve it. After running a scan for system, my antivirus reports that all of these are due to a Trojan horse called Win32/Sirefef ZeroAccess. I really worry that I lose my important data due to this Trojan horse infection. Can anybody tell me what to do to make computer back to normal?

Friendly Reminder: Please try a professional trojan horse removal tool to remove this trojan horse once you can't remove it through the manual removal guide below.

Details of Win32/Sirefef ZeroAccess

Win32/Sirefef ZeroAccess is a newly created Trojan horse responsible for helping cyber hackers intrude on your computer and violate your privacy. It aims to spread through PC from PC or via downloading freeware and shareware, spam emails or hacked website. Cyber criminals implant this threat into some fishing websites, which appear very similar to the real legitimate web pages. If you happen to visit such unsafe websites, this Trojan horse can be downloaded into your computer unwittingly. Besides, if users accidently click malicious links wherever it’s served, computer may possibly get infected by this nasty Trojan horse as well.

As soon as it’s installed, Win32/Sirefef ZeroAccess can start its malicious task designated by cyber criminals. This Trojan horse can cause your computer to restart or shut down all of a sudden, which may bring damage to the hard drives. The more serious problem that this Trojan horse may cause is blue screen and then loss of system data. This Trojan horse can root deeply into your system and perform destructive tasks in the background without your knowledge. Once the system has been controlled by Win32/Sirefef ZeroAccess, the computer performance may not decrease unexpectedly so that you won’t be wary of the malware. Gradually, the entire computer performance will degrade and the reaction of application becomes more and more slow. Most of those programs are adware, spyware or potentially threats. You may realize that name of your private information have been modified to a strange name. The Trojan makes the computer more vulnerable to other infections which can cause more serious damage. Not before too long they will regret for what they had done. So, you can see that the information stored on your computer can be captured easily by the unknown people. The Trojan is a high risky threat. Then, it will send the useful financial data, users’ interests and confidential information to the remote hacker for malicious purposes. Frankly, a majority of antivirus programs cannot clear this Trojan horse even if they detect it. Win32/Sirefef ZeroAccess has built- in scare tactics to trick the legitimate antivirus scanner. Thus, it is suggested that you remove the threat manually if you are a computer expert.

To safely remove Win32/Sirefef ZeroAccess from system, the following instructions will be a good guide. If you are not experienced in computer operation, then you can consider using an automatic removal tool.

Why Need to Remove the Trojan Horse Immediately?

1. It gives the hackers privileged access to your computer. 2. It may cause system crash and disable your executable programs. 3. It downloads other threats including adware, spyware and worm onto your computer. 4.Unnoticeably record your browsing data and internet search habits.

Guide to Manually Remove Win32/Sirefef ZeroAccess - Remove Trojan Horse Virus Step by Step

Win32/Sirefef ZeroAccess is so invasive that it can cause undesired financial and information loss. It can lead to computer performance degradation and even invasion of other malware. Worse still, this Trojan horse allows the remote hackers to gain access to your infected computer and steal important information. You may consider eliminate it as soon as possible. That will be an impossible hope and it’s more realistic to eliminate it manually or with a helpful tool.

Step1: Disable this Trojan
This Trojan can deactivate many software installed on your computer, it’s difficult for you to reach the network via task manager. In order to clear away this Trojan, you can follow these steps below.
1* Start your computer into Safe Mode with Command Prompt for troubleshooting.
For Windows XP and 7, reboot the computer, strike F8 tautologically as the startup menu displays. With the help of the arrow keys, light up the option Safe Mode with Command Prompt and then hit Enter.
For Windows 8, move mouse cursor to the bottom right corner of the desktop and move the mouse cursor up to choose Settings. Then select Power and click on Restart.
Apply arrow keys to choose Troubleshoot as the Choose an Option Window displays, and then hit Enter. Finally, navigate to Advanced option, get into Startup Settings and select Restart.
Hit 6 on the keyboard to enter Safe Mode with Command Prompt.
2* Input explorer.exe and hit Enter.
Step2: Display hidden files and folders
Navigate to Start, choose Control Panel and go to Appearance and Personalization. Then get into Folder Options and locate in View tab.
Under Advanced settings, choose Show hidden files and folders and uncheck Hide protected operating system files (Recommended). Then select OK to finish the process.
Step3: Remove associated files of this Trojan.
1* Right click on the desk icon of this Trojan, navigate to the Properties option and get into Open File Location option. Then select OK to choose target files.
2* Select all the associated files and right click on them to remove them completely.
Step4: Remove associated registry entries of this Trojan
1* Navigate to Start, find the Search programs and files field, type “regedit” into the target box and click on the Enter button.
2* Remove all vicious files and registry entries of this Trojan:
Navigate to Edit, choose Find and text this Trojan into the search box. Select the Find Next to show all the associated registry and files of this Trojan. Then right click on the target items and remove them all.

Note: Of course, it's highly recommended that you should remove trojan horse in a professional way if there are still some similar matters with your computer.

Win32/Sirefef ZeroAccess opens a backdoor in the infected computer and cause many issues. While running, it will try to connect to a specific server through which the hackers can monitor your computer and further acquire your sensitive information. It usually hides in the legal programs to avoid system security guard, which means that it can deliberately penetrate into the system without notifying the user. Furthermore, you should be aware of spam email bundle and hacked web pages such as sites promoting rogue programs and pornography for they are usually utilized by cyber hackers to store Win32/Sirefef ZeroAccess. It may not be easily removed by common antivirus program since it has rootkit technique. Under this circumstance, manual removal solution may be available. What's more, it's wise for you to install one professional malware removal tool to prevent any threats from attacking your computer.