Trojan:Win32/Sefnit.AU virus is attacking my computer. Each time I ran AVG, I was told something was detected and deleted. But after a second security scan, the same infection pops up saying computer is at risks. Is there any better program that can help remove this threat? What steps should I take if I want this Trojan virus off ASAP? Thanks!

Trojan:Win32/Sefnit.AU – How to Remove Trojan Virus

Trojan:Win32/Sefnit.AU is categorized as a Trojan infection that belongs to the Trojan Win32 group. These kind of similar Trojan viruses can be released by computer hackers every once in a while on the Internet waiting to attack different PCs around the world. Similarly, this new variant is also able to escape from many anti-virus protections and sneak into computers without permissions. According to users’ complaints, the Trojan virus is mostly reported on computers with Windows 7, Windows 8, Windows XP and Windows Vista. Mac book users haven’t found themselves troubling by this kind of computer threat so far.

A Trojan virus like this Trojan:Win32/Sefnit.AU normally won’t show up on affected computers as a program. It’s more of a piece of process that can be installed on a system by bundling with or dressing itself up like executable applications online to trick PC users. To be more specific, the infection can be bundled with suspicious hacked links or sites, unknown freeware or unauthorized attachments from spam emails. When PC users download these unknown programs or files from the Internet, they can somehow get the Trojan to install as well even if there’s anti-virus protection. Hence, victims of this Trojan virus basically don’t know when or how it gets through. But soon as the virus arrives, Trojan:Win32/Sefnit.AU virus will be able to bring up constant chaos on the affected systems to create lots of inconvenience for PC users. Many functions on the compromised PCs will be automatically disabled by this Trojan infection. The fact that this Trojan has the ability to help computer hackers steal confidential data from infected systems is believed to be the most concern of all. With no hesitations, the nasty Trojan virus should be removed from computers for good.

Note: To save computers from all the further consequences and other potential risks, please contact YooSecurity Online PC Experts to get help timely to remove this Trojan:Win32/Sefnit.AU virus if you are not a computer savvy.

Troubles To Be Expected from Trojan Win32/Sefnit.AU

Upon arrival, Trojan:Win32/Sefnit.AU virus can automatically modify the default settings on the compromised systems for its own convenience later on. The following consequences can be expected when PC is hacked by this Trojan infection:

1. Computer desktop icons and background can be automatically adjusted or replaced;
2. Computer is experiencing extremely slowness and constant stuck more often;
3. CPU usage can be rather high while only a few processes are shown running;
4. Many security alerts can keep displaying which can be associating with malware;
5. Browsing online may be redirected and Internet connection can be affected as well;
6. On-screen cursors can be jumping everywhere and things could be moved around without consent;
7. Online personal data can also be collected.

A Step-by-step Trojan Removal Guide

To completely remove this Trojan:Win32/Sefnit.AU virus out of the computer, anti-virus removal has mostly come into fail. Instead, manual removal is suggested here as the best option of removal. Expertise will be required during the removal process as the Trojan virus is changeable. Steps have been listed in the following to get rid of this Trojan virus:

Step 1: Open Windows Task Manager to end processed related to Trojan:Win32/Sefnit.AU virus. To do that, press Ctrl+Alt+Del keys at the same time or right click on bottom Task Bar and select Start Task Manager.
Windows Task Manager

Step 2: Open Control Panel from Start menu. Go to Folder Options and under View tab, select Show hidden files and folders and non-select Hide protected operating system files (Recommended) then click OK.
Folder Options

Step 3: Go to Registry Editor. First press Windows+R keys and then type regedit in Run box to search. Delete registry entries associated with this Trojan:Win32/Sefnit.AU infection:
Run+Registry Editor

%AllUsersProfile%\Application Data\[tmp]
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\System “DisableRegedit”
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\{rnd}=

Video on How to Modify or Change Windows Registry


Nowadays, computers are facing lots of cyber threats. Some of them can be effectively prevented by anti-virus programs; while others like this Trojan:Win32/Sefnit.AU virus couldn’t. We believe the reason for that is due to the involvement of computer hackers and their particular purposes. Generally, they release these viruses online to attack users’ computers. With the help of these viruses, hackers are able to get what they want and even hack into the compromised systems to cause further troubles. Victims of this Trojan virus often find it upsetting that they cannot get rid of it easily by anti-virus removal and the Trojan will come back over and over again. PCs encounter constant troubles during operations and users are unhappy. To completely get rid of this Trojan:Win32/Sefnit.AU virus, manual removal is one efficient way because of the general failure of most anti-virus. Computer is a necessity now in daily life and most of us can’t imagine life without it. So try to protect your PCs more efficiently and comprehensively.

Note: Problems still remain in the systems? Still feels tricky and can’t be sure the Trojan is completely off? Contact YooSecurity Online PC Experts now for further help to save PCs.

Published by Tony Shepherd & last updated on September 26, 2013 5:01 am

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