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Rootkit in the MBR doesn't want to leave my PC


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4 replies to this topic

#1 nicolati

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Posted 20 July 2013 - 11:01 AM

Hi guys,

I'm new to this forum! Thank you very much in advance for the work you do here!

 

The story is the following:

I have a PC from a friend which is infected by at least one rootkit and I already tried several things. Some of them with a result, others no.

 

1) The PC was unable to connect to internet and to System Event Information, so I restored Winsock through two registry files found on internet. The standard procedure "nets windsock reset catalog" didn't work.

2) I scanned the PC with aswMBR and I have a log. Apart the MBR unknown code, it seems fine.

3) I run bootkit remover and it finds a rootkit in the MBR.

4) I run ComboFix and I have a log.

5) I run again aswMBR, but not it says Inizialize error - driver not loaded

6) Same strange problem with TDSKiller. So something happened with ComboFix.

7) I tried uninstalling ComboFix, but same problem...

8) Bootkit remover continues to see a rootkit in the MBR.

9) I tried booting from a Windows 8 DVD and do bootrec /FixMbr and bootrec /FixBoot. They say operation complete, even though the rootkit seems to be still there :( .

 

What can i do to further try removing this malware/s?

 

Thank you

Francesco



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#2 roccoadam32

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Posted 20 July 2013 - 11:05 AM

try malwarebytes anti rootkit or a rescue cd kaspersky and bitdefender have them for free



#3 Broni

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Posted 20 July 2013 - 03:55 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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#4 nicolati

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Posted 21 July 2013 - 07:45 AM

Thank you Broni, but prior you wrote I started wiping.

So I solved wiping all and fixing MBR using aswMBR after the Recovery, since the MBR was still corrupted, after all.

Fra



#5 Broni

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Posted 21 July 2013 - 10:32 AM

thumbsup-thumbs-up-approve-ok-smiley-emo


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