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Rootkit removed by Combofix, now DNS problem


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#1 mistergrinch

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Posted 19 September 2011 - 12:32 PM

I removed some kind of Rootkit with Combofix (which I ran twice), but now DNS isn't working in any applications. I got DNS to work in nslookup after repairing the connection, but if I ping or use a browser nothing resolves. Does anyone have any idea how to fix this? Thanks!

Edited by hamluis, 19 September 2011 - 01:22 PM.
Moved from XP to AV, Firewall, etc.


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#2 quietman7

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Posted 19 September 2011 - 01:41 PM

If you are dealing with a malware infection, please be aware that using ComboFix is only one part of the disinfection process. Preliminary scans from other tools like DDS, RSIT and GMER should be used first because they provide comprehensive logs with specific details about files, folders and registry keys which may have been modified by malware infection. Analysis of those logs allows planning an strategy for effective disinfection and a determination if using ComboFix is necessary. ComboFix was never meant to be used as a general purpose malware scanner like SuperAntispyware or Malwarebytes' Anti-Malware which scan individual drives or different folders on a computer for viruses. Please read the pinned topic ComboFix usage, Questions, Help? - Look here.

Since you already ran Combofix, it should have saved a log to the root directory, usually C:\ComboFix.txt. Reviewing that log will be helpful in resolving your issue but they are not permitted in this forum.

Please read the "Preparation Guide For Use Before Using Malware Removal Tools and Requesting Help". When you have done that, post the required logs to include your ComboFix log in that forum, NOT here, for assistance by the Malware Response Team Experts.
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#3 Orange Blossom

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Posted 19 September 2011 - 02:32 PM

Hello,

Now that you have posted a log here: http://www.bleepingcomputer.com/forums/topic419606.html you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a MRT Team member, nor should you ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the MRT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the MRT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the MRT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another MRT Team member is already assisting you and not open the thread to respond.

Please be patient. It may take several days to get a response but your log will be reviewed and answered as soon as possible. I advise checking your topic once a day for responses as the e-mail notification system is unreliable.

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

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom :cherry:
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