Delete/ Remove Trojan:Win32/Sefnit.AU Virus Completely

Why does Trojan:Win32/Sefnit.AU recur again and again just after I restart my computer? What should I do to uninstall Trojan:Win32/Sefnit.AU from your computer? This nasty Trojan virus blocks me from starting my computer, and I have to restart my machine several times to get to the desktop. And my computer is running slow. Can anyone help me get rid of it completely?

Details of Trojan:Win32/Sefnit.AU Virus:

Trojan:Win32/Sefnit.AU Virus is classified as a destructive Trojan threat which wrecks havoc on the victims’ computers as well as their sensitive information when activated on the infected machines. Once this Trojan:Win32/Sefnit.AU virus grasps the opportunity to come into your computer, this cunning Trojan virus will firstly execute malicious code to corrupt the registry entries so as to enable itself to be launched at system startup. You will suffer from the great degradation of the computer performance, and some running processes will terminate for no obvious reasons. Besides, your antivirus program will also be attacked by this vicious Trojan virus seriously. Just like other Trojan members such as Trojan Horse BackDoor.Generic17.AOE Virus and Trojan Horse Downloader.Generic 13.BMKE Virus, this Trojan:Win32/Sefnit.AU virus has the ability to search the locations of your antivirus software’ key files. And this evil virus will damage these crucial installed files to make your antivirus unable to take effect. By doing so, this foxy Trojan horse manages to protect itself from being removed by your antivirus. However, this will make your computer lose the necessary security protection and easily get attacked by many other risky computer threats. Under this circumstance, this Trojan:Win32/Sefnit.AU virus will open a backdoor for cyber crooks to sneak into your vulnerable machine and take over it to conduct illegal acts. Thus, you are highly advised to follow the removal instruction below to manually remove this Trojan:Win32/Sefnit.AU virus from your poor computer.

Malicious Activities of Trojan:Win32/Sefnit.AU Virus:

1) Trojan:Win32/Sefnit.AU Virus makes malicious modifications to registry entries and security settings.
2) Trojan:Win32/Sefnit.AU Virus takes up lots of memory to maintain its smooth running in the background.
3) Trojan:Win32/Sefnit.AU Virus degrades your computer performance significantly and drives you crazy.
4) Trojan:Win32/Sefnit.AU Virus installs numerous viruses and rouge software into your compromised system.
5) Trojan:Win32/Sefnit.AU Virus assists remote hackers in gathering your sensitive information online.
6) Trojan:Win32/Sefnit.AU Virus triggers a bunch of annoying pop-up ads and unexpected redirection problems.
7) Trojan:Win32/Sefnit.AU Virus disables the security tools including the firewall and antivirus software.

Get Rid of Trojan:Win32/Sefnit.AU Virus Thoroughly

As Trojan:Win32/Sefnit.AU virus is stubborn and dangerous, it is strongly recommended that you remove it as soon as possible. The following post provides detailed manual removal guide to help you completely delete related components of Trojan:Win32/Sefnit.AU virus and fix the problem.

Step 1: Restart the system in Safe Mode with Networking. Keep press F8 when the machine starts to boot up.

Step 2: Delete startup items of Trojan:Win32/Sefnit.AU virus. Press Win+ R, type “msconfig” and click OK.

Step 3: Remove registry entries of Trojan:Win32/Sefnit.AU virus. Press Win+R to open Run, type “regedit” and hit OK.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system “EnableLUA” = 0
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System “DisableRegistryTools” = 0
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System “DisableTaskMgr” = 0

Step 4: Show hidden files and delete related files of Trojan:Win32/Sefnit.AU virus. Click Start Menu, select Control Panel, and search Folder Option.

C:\WINDOWS\system32\drivers\serial.sys
C:\Users\user account\Appdata\Roaming
C:\windows\system32\services.exe\rnd

Note: Trojan:Win32/Sefnit.AU virus is rather stubborn and malicious. It requests certain computer skills when you dealing with it in manual way. Any incident action could lead your machine to a more terrible situation.