Are you mad at being troubled by a pesky Trojan horse called “Trojan:win32/sirefef!cfg”? Have you got any idea of such a Trojan infection? How to effectively delete it from your computer? Read this post and eliminate the Trojan virus entirely with the following guide. Definition of Trojan:win32/sirefef!cfg Virus: Trojan:win32/sirefef!cfg is a highly dangerous Trojan that instantly embeds harmful code to target file on the computer. This virus can proliferate through malicious websites, spam email messages, unsafe downloads. Once it is downloaded, it drops several junk files on local drive particularly under System folder of Windows. Thus, it makes the removal rather difficult. This threat can download more malware and execute them on the infected PC so as to put your computer in a serious situation. Generally speaking, the Trojan horse allows remote access to your computer in the purpose of gathering your personal information and other sensitive information. Furthermore, it can redirect your specified websites to other insecure web pages casually every time you perform web browser tasks. Obviously, this Trojan can change your desktop image, homepage and browser settings casually, which annoys you so much. In this case, it is high time for you to delete the Trojan virus from your computer entirely. The following instructions require certain levels of computer skills. If you’re not sure and are afraid to make any critical mistakes during the process, please live chat with YooCare Expert now. Danger of Trojan:win32/sirefef!cfg #The Trojan allows cyber criminals to visit your computer remotely without your consent. #The Trojan is related to system crash and files fragmentation, and it can disable your executable programs. #The Trojan redirects your specified websites to other harmful websites and changes your computer settings at random. #It brings other types of threats to your computer such as malware, adware parasites and spyware. #It records your browser history and computer data to violate your privacy and compromise security. Best way to handle with the Trojan virus completely? The Trojan virus does great harm to the affected computer after invaded. To make your computer infected deeply, the Trojan gets into your computer along with other potential threats such as malware and spyware. While being corrupted, the computer gets poor system performance and other related problems like system crashed. You may find that your advanced anti-virus software is disabled by the Trojan threat and fails to delete any virus entirely. In this situation, you’d better to eliminate the Trojan from your computer completely soon. Instructions on removing Trojan:win32/sirefef!cfg completely: 1. Restart your PC before windows launches, tap “F8” constantly. Choose “Safe Mode with Networking” option, and then press Enter key. 2. Press Ctrl+Alt+Del keys together and stop Trojan:win32/sirefef!cfg virus processes in the Windows Task Manager. 3. Delete associated files from your PC completely as follows: %AllUsersProfile% %AllUsersProfile%\Application Data\~r %AllUsersProfile%\Application Data\~ 4. Search for all related registry entries infected by this Trojan virus and wipe them out: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run “ ” HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings “CertificateRevocation” = ’1′ HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments “SaveZoneInformation” = ’1′ 5. Reboot the computer to normal mode when the above steps are done. This Video Shows You How to Safely Modify Windows Registry Editor: Trojan:win32/sirefef!cfg is a highly dangerous Trojan that can access victims’ computers to rip off their important information for other malicious purposes. It can compromise your system and may introduce additional infections like rogue software. Similar to other threats, it has the ability to disable your security software from being deleted, modify system settings and gather confidential data to a remote hacker. Meanwhile, it takes up high resources and strikingly slows down your computer speed and even causes your computer stuck frequently. Besides those visible bad behaviors, this threat still involves more potential threats that may ruin your system. Hence, you have to remove this pesky Trojan from your PC as soon as possible, or it will cause irreparable damages to your PC. Friendly Reminder:If you still find it difficult to follow the removal guide above smoothly, please contact YooCare: PC experts 24/7 online will offer you the most effective tech support to remove Trojan:win32/sirefef!cfg infection completely.