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Sirefef infection on Dell Win7 64


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#1 blairmahaffy

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Posted 16 July 2012 - 12:54 PM

Hi there. I'm hoping I can get some help before I have to completely format and rebuild my computer.

This morning when I started up my computer (A Dell Studio 17 with Windows 7 64 bit) I discovered that Microsoft Security Essentials was in a disabled mode and the Windows Firewall had disappeared entirely.

- I tried to start Firewall and got an error 80070424.
- I tried uninstalling and reinstalling MSE.
- At that point it would scan for a minute, declare a serious infection and restart the computer. Ended up in an infinte loop
- So I uninstalled MSE so I could take other steps.
- Following Microsoft's advice, I downloaded Microsoft Safety Scaner. It finds infected files: specifically SIREFEF.B in Services.exe
- I also downloaded and installed MalwareBytes which has quarantined Trofan.Sirefef and Rootkit.0Access
- If I run MalwareBytes now it comes up with 0 problems.
- Spybot S&D, which I run regularly, also comes up clean.

- But the Microsoft Safety Scanner is persistent with the error Sirefef.B in Services.exe and Windows Firewall still won't start.

I gather I still have a serious problem here. Can anyone give me any direction?

Thanks so much in advance.

*Moderator Edit: Moved topic from Windows 7 to the more appropriate forum. ~ Queen-Evie*

Edited by Queen-Evie, 16 July 2012 - 12:58 PM.


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#2 Broni

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Posted 16 July 2012 - 07:48 PM

Please follow the instructions in ==>This Guide<== starting at Step 6. If you cannot complete a step, skip it and continue.

Once the proper logs are created, then make a NEW TOPIC and post it ==>HERE<== Please include a description of your computer issues, what you have done to resolve them, and a link to this topic.

If you can produce at least some of the logs, then please create the new topic and explain what happens when you try to create the log(s) that you couldn't get. If you cannot produce any of the logs, then still post the topic and explain that you followed the Prep. Guide, were unable to create the logs, and describe what happens when you try to create the logs.

It would be helpful if you post a note here once you have completed the steps in the guide and have started your topic in malware removal. Good luck and be patient.

If HelpBot replies to your topic, PLEASE follow Step One so it will report your topic to the team members.

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