I got a report this morning and it told me that there was a Sirefef.gen!C Trojan in drive C. Then I followed the path and found the file and reboot my laptop. But the virus was back! Every time after I removed it and restarted laptop, it’s back! I really don’t know how to clean it!

Some Information of Sirefef.gen!C

Sirefef.gen!C is another new released Trojan virus which was graded as risk AAAAA by famous anti-virus software. Why is it so dangerous? According to PC users’ response, this virus can’t be removed by anti-virus software, at least for not a short time. They said that they even tried many kinds of software to deal with this Sirefef.gen!C Trojan but it’s still in their computer just like it takes roots in computers. Just like the victim described, you might click remove or delete many times. But Sirefef.gen!C virus will still be there in your computer. As if this virus can escape from scanning. Right, this Trojan virus is very smart which is created by some criminals with an ulterior motive. The final purpose is to destroy your computer system.

When Trojan:Win32/Tobfy.N hides in the system files, it will keep changing its name randomly so that your anti-virus can’t remove it. Or it will camouflage as the system file. In this way, the anti-virus won’t easily remove it. The most awful and destructive action of Trojan:Win32/Tobfy.N is that it will start background downloading when it has its full swing without your notice and permission. The key point is that those downloaded files are all vicious programs, robber software and with useless even harmful information which can lead to your individual privacy revealed to evildoers that means you will suffer property loss and spiritual damages. For you and your computer’s sake, please remove it whenever you get infected buy such Trojan no matter in which way as soon as you can. But remember, antivirus may detect it but can never remove it completely.

As Sirefef.gen!C Trojan virus hides deeply in your system, it effects Windows XP, Windows Vista, Windows 7 or Windows 8. To make your computer safe, you can follow the guide here (For advanced computer users), or contact YooCare PC Experts online for solutions:

How to judge if your computer has been infected this Trojan Virus

A. Your computer is something not normal as usual such as running very slowly.

B. When you open the Task Manager, you can find some strange progress which you never found before.

C. Some of your computer functions are unavailable or some normal legal program can’t run or there are unusual conditions of them.

D. It always constantly happens that your system has errors somewhere.

E. Later, your computer system will be totally destroyed.

What Is The Best Way to Remove Sirefef.gen!C Trojan?

Depending on which level of risk of the Sirefef.gen!C Trojan virus has infiltrated your PC, you might find it is hard to get rid of this sophisticated worm. Some people have successfully cleaned out the stubborn worm, but since one of the primary functions of this virus is to disable security programs,so the method of using anti-virus program is not always a foolproof approach.

Please follow these steps to get rid of Sirefef.gen!C virus manually:
Step 1: Press CTRL+ALT+DEL or CTRL+SHIFT+ESC. Open the Windows Task Manager.
If that didn’t work, try another way. Press the Start button and click on the Run option. This will start the Run tool. Type in taskmgr and press OK. This should start the Windows Task Manager

Step 2: Within the Windows Task Manager click on the Processes tab. Find the process by name. random.exe. Then scroll the list to find required process. Select it with your mouse or keyboard and click on the End Process button. This will kill the process.

Step 3: Delete malicious registry entries.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\random
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run\random

Step 4: Remove malicious files of Sirefef.gen!C virus

C:\windows\system32\services.exe
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Ext\Settings\{FddsFE4DFF-B2DS54457-AS0902LS99SD}
C:\Program Files\Search Results Toolbar\Datamngr\SRTOOL~1\random

Video of Key Steps on How to Modify or Change Registry to completely clean Sirefef.gen!C virus:

Further more, please be careful when you try to fix Sirefef.gen!C virus problem yourself. It’s not so easy for one person who is not familiar with the virus and not well trained in IT filed. The virus can change its name constantly which will make the removal work harder to you. If you don’t have much knowledge of Windows operating system, you almost can’t find it out from so large amounts of system files. And you’d better don’t try so called free software to get rid of this Trojan since the virus is well disguised that anti-virus may delete some system files erroneously. What’s more so called free software may be another cheater. You’d better to find an expert to help you remove this Trojan.

Kindly Reminder: If you failed to remove Sirefef.gen!C virus with the methods you found from the internet, please consult YooSecurity certified professionals to remove it completely.

Published by Leo R. Oscar & last updated on February 25, 2013 12:57 pm

2 Responses to “How to Clean or Remove Sirefef.gen!C Trojan”

  1. Tom says:

    Hi,
    Tried your way of removing this trojan sirefef.gen!C but thid comes up “The operation is not valid for this process” what everthat means. Using my lap top to sort this out. best regards,Tom

  2. brayden says:

    yea i have a problem i have had the virus for nearly a month and have decided to fix it and i am at the remove file thing with regit and i found alot of random names but they seem to say they hold important items in it eg: for one of the data names it says microsoft windows media player and another one says in the exact same folder @%systemroot%\system 32\wmploc.dll,-128. i really need help with this one asap so if anyone could reply it would meqn alot thnks

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