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Possible Infection - Need help diagnosing


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#1 ricketscientistne

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Posted 15 April 2012 - 10:33 AM

I have a Dell studio XPS running Windows 7 Pro which as of this morning has started behaving very oddly. I suspect an infection but have not been able to locate it. The symptoms appeared in teh following order:

1.) McAfee real-time scanning shut off and could not be re-activated.
2.) My attempts to use Avast boot-time scanning did not work; the boot time scan would not initiate. That's never happened before.
3.) I received one pop up window from Avast claiming that another program was trying to shut it off. Unfortunately I did not get the information in the window. copied down.

Now my computer will not boot in anything but safe mode. I am making this post via a work computer.

I was able to run Malwarebytes in safe mode and nothing was found. Avast no longer seems to work at all. I am currently running a full scan with McAfee.

This progression sure looks like a virus, but nothing has identified it yet. Are there any tools here that may be able to help?

Thanks you!

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#2 Broni

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Posted 15 April 2012 - 10:53 AM

Are you running two AV programs?

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#3 ricketscientistne

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Posted 15 April 2012 - 01:09 PM

Yes I am. I am running Avast (free version) and McAfee.

#4 ricketscientistne

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Posted 15 April 2012 - 01:10 PM

I should also point out that my McAfee scans ansl did not find anything on the computer.

#5 Broni

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Posted 15 April 2012 - 01:17 PM

You can't be running two AV programs.
Uninstall one of them.
If McAfee use this tool to uninstall it: http://majorgeeks.com/McAfee_Consumer_Product_Removal_Tool_d5420.html

When done update me on computer behavior.

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#6 ricketscientistne

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Posted 15 April 2012 - 03:52 PM

I uninstalled Avast, since it was the one I installed most recently (to make use of the boot-time scan capability). The computer has booted up properly and the McAfee program now appears to be running normally.

I'll re-scan the drives; however is there anything else I should do to verify that the computer is clean? The behavior I saw was unnerving.

Thank you.

#7 Broni

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Posted 15 April 2012 - 04:12 PM

I think you just created a conflict by running two AV programs.

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