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Ran Combofix which hung up and had to reboot


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#1 mr12345678

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Posted 19 March 2012 - 10:35 PM

Initially we had a System Check virus of which I was able to fix and get the computer working relatively normally. However, we still had issues where search engine results would redirect to unrelated sites and the antivirus program identified a rootkit infection. I read on a forum that someone had good results using Combofix to remove root kit infections, so I downloaded it and executed it. It installed the Windows Recovery Console and displayed instructions to wait as it scanned. It never got past that point. After an hour, the computer was completely unresponsive so I turned the computer off, then on to reboot. When the computer rebooted, Combofix did not resume. I no longer had network services (it shows empty when i click on the icon), print services do not work, sound could not be configured. My task bar was hidden very low, but I was able to finally to bring it into view, however, my open windows no longer display in the taskbar. I attempted to restart some of the services, but got a 1068 error. Internet Explorer will not open. All of that worked before I ran Combofix. Luckily I have Chrome and it works with the use of an ethernet cable; the wireless connects but cannot get an IP address. Ironically, I was able to get rid of the rootkit infection using the TDSS Killer. Search results no longer redirect, but the computer is a mess. Please help me restore this computer back to the way it was.

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#2 quietman7

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Posted 22 March 2012 - 07:10 AM

As a general policy, Bleeping Computer does not offer advice on how to run ComboFix unless we asked someone to run it or if there is a problem with the computer caused by running the tool. This is because people should not be using ComboFix without being advised to do so by a trained expert (see here) who is assisting them deal with a malware problem. When issues arise due to complex malware infections, possible false detections, problems running ComboFix (i.e. stalling, hanging, crashing) or with other security tools causing conflicts, experts are usually aware of them and can advise what should or should not be done while providing individual assistance. When false detections are identified, experts have access to the developer and can report them so he can investigate, confirm and make corrections. Those attempting to use ComboFix on their own do not have such information and are at risk when running the tool in an unsupervised environment.

Also 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.

With that said, from what you describe, it doesn't sound like ComboFix ran properly or did anything, however it may have generated a log and saved it to the root directory, usually C:\ComboFix.txt. That log should be thoroughly reviewed by experts.

Please follow the instructions in the Preparation Guide For Requesting Help starting at Step 6. When you have done that, start a new topic and post the required logs to include your ComboFix log in the Virus, Trojan, Spyware, and Malware Removal Logs forum, NOT here, for assistance by the Malware Response Team Experts. After doing this, please reply back in this thread with a link to the new topic so we can closed this one.

If HelpBot replies to your topic, please follow Step One and CLICK the link so it will report your topic to the team members.

Note: If no log was created by ComboFix, then ignore this part and just post the other requested logs in your new topic.
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#3 mr12345678

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Posted 24 March 2012 - 10:21 PM

Included logs in the V, Trojan, Spyware and Malware Removal Logs topic http://www.bleepingcomputer.com/forums/topic447488.html

#4 quietman7

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Posted 25 March 2012 - 07:06 AM

Now that your log is posted, 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 Malware Response Team member...nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show in the log(s) you already posted. Further, any modifications you make on your own may cause confusion for the member assisting you and could complicate the malware removal process or make things worst which would extend the time it takes to clean your computer.

From this point on the Malware Response 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 several days to get a response because the Malware Response Team members are very busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have posted your log and are waiting, please DO NOT "bump" your post or make another reply until it has been responded to by a member of the Malware Response 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 Malware Response Team member is already assisting you and not open the thread to respond.

If HelpBot replies to your topic, please follow Step One and CLICK the link so it will report your topic to the team members.

To avoid confusion, I am closing this topic until you are cleared by the Malware Response Team. If you still need assistance after your log has been reviewed and you have been cleared, please PM me or another moderator and we will re-open this topic.

Good luck with your log.
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