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Removing "antivirus scan" malware


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#1 HuntyBigHead

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Posted 17 January 2011 - 03:08 PM

Hey guys, so basically I have been referred here from the norton forum for more specialist advice for removing malware. Somebody posted a link (http://www.bleepingcomputer.com/virus-removal/remove-antivirus-scan) to a guide for removing this particular malware although I got to step 16, scanning in MBAM (in safe mode) when my laptop suddenly turned off, not shut down just simply turned off instantly. Upon this happening I tried again it turned off during the scan. I have also tried leaving it for a while without MBAM open and it still turned itself off. I have tried editing power options and before I am asked, YES it IS plugged in and didn't run out of battery. Is this turning off caused by the malware itself or am I facing even more problems? Any help would be appreciated, thanks. :wink:

Edited by Budapest, 17 January 2011 - 05:13 PM.
Moved from Virus, Trojan, Spyware, and Malware Removal Logs ~BP


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#2 AustrAlien

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Posted 18 January 2011 - 05:11 AM

It is likely that the laptop CPU is overheating: When that happens, the laptop simply turns itself off as a self-protection measure.

Make sure there is plenty of ventilation around the laptop. Check that the fan(s) inside is working properly. It may be that you need to dismantle the outside enclosure to access the CPU heatsink, and blow it out using a can of compressed air. A lot of fluff and dust tends to accumulate over time.

There's plenty of information on the subject to be found by googling laptop over heat ... or something similar, and if you include your laptop brand and model, you may find specific instructions for dismantling and cleaning it.

That is the most likely cause of your laptop switching off unexpectedly, and the first thing you should check.
AustrAlien
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#3 HuntyBigHead

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Posted 18 January 2011 - 08:59 AM

Before I try to dismantle it, are you still certain it's overheating if I say that I can leave it on with no problems for multiple hours when not on safe mode and have had no problem like this in the year that I have had it yet it seems to turn itself off only in safe mode

#4 AustrAlien

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Posted 18 January 2011 - 11:14 PM

I can't be certain of anything based on so little information, and what you have just posted is not consistent with my idea either!

Never-the-less, I think that it remains the most likely cause of the problem, so we should get some more info about your system and have a look at the CPU temperatures when you are using the laptop.

:step1: Please Publish a Snapshot using Speccy, and post a link to it in this thread.
This is a convenient and accurate way of providing us with details of your computer specifications.
If you cannot get on-line to publish the information, and wish to attach it as a text file to your post, then please edit it to ensure that you do not include your Windows Key.


:step2: Monitor your CPU temperature while you are doing various tasks on the computer, especially doing what you think will cause it to switch off unexpectedly.

Download and install one or more of the following applications to enable you to monitor your CPU temperature while using the computer. They are rather temperamental applications, and you might have to try more than one of them, before you find one that works properly with your particular system.


Please post the range of temperatures that you are seeing for the CPU.

Edited by AustrAlien, 18 January 2011 - 11:15 PM.

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#5 HuntyBigHead

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Posted 19 January 2011 - 06:16 AM

Ok so I was downloading a few of the suggested programs to monitor the temperature as some wouldn't work for some reason and the laptop turned itself off again, I felt it and it was very hot in comparison to how it usually feels so I guess it is overheating. Do you still want to have a look at the temperature?

#6 AustrAlien

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Posted 19 January 2011 - 06:25 AM

That choice is really up to you. It would be nice to know for sure that it is overheating: To see the temps before cleaning, and then the temps after cleaning.

I consider it standard practice to monitor my CPU temperature (among other things) at all times. But if you are having trouble with the suggested programs, then perhaps you would rather just bite the bullet and physically check (and clean) the cooling system for your CPU.

I will try to help with whatever you choose to do, if you have a problem. Just let me know what the exact problem is that you are facing.
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#7 HuntyBigHead

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Posted 19 January 2011 - 06:58 AM

Ok, first of all I can't even find disassembly notes or anything for my laptop online (packard bell easynote TJ61).

Edit: For some reason it now seems to be fine (in "normal" mode) without any sign of the malware, no pop ups, allowed access to programs without saying they're a virus, etc although I'm not too keen on it, it seems dodgy as all I did was open firefox earlier on and close a tab :huh:. Also, rather than all of this hastle system restore would also get rid of the malware right??

Edited by HuntyBigHead, 19 January 2011 - 12:03 PM.


#8 AustrAlien

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Posted 19 January 2011 - 11:23 PM

It is a furphy that "system restore would also get rid of the malware". That is not necessarily the case. It may stop it appearing, it may remove some of it, but there is no guarantee at all, that the problem will not return, because the malware has not been fully or properly removed. We should continue with the steps to fully remove the malware. Let me know if you wish to continue after following the removal guide that you linked to in your first post, and we will run a couple more scans to confirm that the system is now clean.

There is also the problem of your computer switching off unexpectedly. It is unlikely to have been in response to malware, and is possibly caused by an over-heating issue and this should be checked out properly. It will not go away by itself if it is caused by over-heating. I suggest that we persist with attempting to get some information about the temperatures being reached by the CPU. If we can diagnose the problem with more certainty, then you will have a better idea of whether you need to dismantle the laptop or not.

I had a quick look last night for information on the TJ61, and apart from the User Manual, which was not of any help, I couldn't find any useful info. If you need assistance physically dismantling the laptop sufficiently to clean the cooling system, I could ask for some help from people who have experience in doing this, and they may be able to guide you through it. Let me know what you would like to do.

Edited by AustrAlien, 19 January 2011 - 11:25 PM.

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#9 HuntyBigHead

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Posted 20 January 2011 - 07:29 AM

Well since it only overheats in safe mode it's not a main priority but I will still record the temperatures and show you (now that I can finally do things in regular mode). I ran a full scan with MBAM and finished the guide that I linked and it found 1 malware and quarantined it and funnily enough my norton 360 actually found malware this time but during a background scan that it was running while the laptop was idle as opposed to the full scan :S Anyway, I'll post the temp and what not, any advice you can give to ensure the malware is entirely gone would be of much use. Thanks

Temps: http://img529.imageshack.us/img529/6927/cputemps.jpg (CoreTemp and SpeedFan)

Edited by HuntyBigHead, 20 January 2011 - 07:51 AM.





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