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Win32/sirefef.AC [Closed]

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Can someone please help me to remove Win32/sirefef.AC it would be greatly appreciated.
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Hello caanan36 :),

Welcome to Geeks To Go. I am Jack&Jill, and I will be helping you out.

Before we go further, there are a few things that I would like to make clear so that we are share the same understanding.
  • Please observe and follow these Terms of Use.
  • Any advice is for your computer only and is taken at your own risk. Fixes sometimes will cause unexpected results, but I will do my best to assist you.
  • Please read the instructions carefully and follow them closely, in the order they are presented to you.
  • If you have any doubts or problems during the fix, please stop and ask.
  • All the tools that I will ask you to download and use are safe. Please allow if prompted by any of your security softwares.
  • Do not use or run any malware cleaning tools without supervision as they may cause more harm if improperly used.
  • Refrain from installing any new programs except those that I request during the fix to prevent interference to my diagnosis of the problem.
  • Lack of malware symptoms does not mean your computer is clean. Stick to this topic until I give the All Clear.
  • If you do not reply within 3 days, this topic will be closed.
If you are agreeable to the above, then everything should go smoothly :) . We may begin.

Please subscribe to this thread to get immediate notification of replies as soon as they are posted. To do this, click Watch Topic near the top of the page, then select Immediate Notification. Click on Proceed.


Your computer has/had some serious infections with rootkit/backdoor capabilities.
Sorry for the bad news. Backdoors provide outsiders full access to your computer, enabling them to record key strokes, steal passwords, spread malwares, and even using it for other illegal activities.

If your computer has been used for important or sensitive data such as online banking, shopping or any other financial transactions, I strongly recommend you to do the following:
  • Disconnect from the Internet and any network immediately.
  • Inform your financial institutions that you may be a victim of identity theft and to put a watch on all your accounts or change them.
  • Change all your online passwords from a clean computer.
  • Take any other steps that you may think is necessary to prevent financial distress due to identity theft.

Due to the backdoor functionality, your computer is compromised and can no longer be fully trusted. Many experts in the security community believe that once tainted with this type of infections, the best course of action would be a reformat and reinstall of the OS. I too strongly recommend you to format your computer. We can still attempt to clean it if you wish, but due to the severity of the infections, I cannot guarantee it will be safe or clean afterwards. It is up to you to decide. Please let me know which course of action you wish to take.

Here are some read to help you decide:
How to respond to possible ID theft and Internet fraud
When should I reformat?
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Due to lack of feedback, this topic has been closed.

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