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virus.win64.zaccess.a on monther-in-law's laptop


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#1 robster970

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Posted 03 December 2012 - 02:07 AM

Hi Folks,

My mother in law complained to me that her computer had become slow and was randomly redirecting her google searches off to rather random locations. I ran her McAfee and nothing showed up, Malwarebytes which cleaned out a few things. I then did some reading on rootkit based viruses and then ran TDSSKiller. This put some stuff in quarantine but identified that virus.win64.zaccess.a was resident in the services.exe and it was unable to cure it.

Having done some more reading I can see it is a persistent little bugger to get rid of and have arrived here for some help in removing it.

Thanks

robster970

e2a - noticed typo in thread title, that was supposed to be 'Mother' not 'Monster' or any other derivative....

Edited by robster970, 03 December 2012 - 02:18 AM.


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#2 boopme

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Posted 03 December 2012 - 11:08 AM

Hello robster
Probably best to repost with these logs...

Let's get a deeper look. Please follow this Preparation Guide
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#3 robster970

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Posted 04 December 2012 - 01:50 AM

Hi boopme,

I'll get cracking on this on Thursday when I get back into the UK.

#4 boopme

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Posted 04 December 2012 - 11:32 AM

OK
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 robster970

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Posted 06 December 2012 - 03:16 PM

Hi boopme,

OK, I read the prep guide and scanned through the library of virus removal tools. Malwarebytes anti-rootkit (this one) seems to have done the trick and has scanned clean after a second pass. I re-ran TDSSKiller (which found the same files which were a mix of rootkit and backdoor) but couldn't shift them and that came up clean too.

Chrome and IE are now behaving normally again and the machine has returned to normal speed. I'm going to advise the 'olds' to stop using IE (removed it from start and taskbar, replaced with Chrome) and to change their passwords in case there was any keylogging or other nasty stuff going on which would account for it being sluggish.

Seems your online reference was good enough to solve the problem, so for that, I thank you for pointing me at it.

Cheers

robster

Edited by robster970, 06 December 2012 - 03:31 PM.


#6 boopme

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Posted 06 December 2012 - 08:34 PM

OK, that sound good to me.. You're welccome ......
Now you should Create a New Restore Point (alternate method) to prevent possible reinfection from an old one. Some of the malware you picked up could have been backed up, renamed and saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back" to a clean working state.

The easiest and safest way to do this is:
  • Go to Start > All Programs > Accessories > System Tools and click "System Restore".
  • Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
Then use Disk Cleanup to remove all but the newly created Restore Point.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#7 robster970

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Posted 07 December 2012 - 01:17 AM

I created a clean restore point but it had not occurred to me to wipe the older restore points. Have done this now. Many thanks boopme.

#8 boopme

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Posted 07 December 2012 - 08:01 PM

:thumbup2:
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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