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avast! warns of Malware-gen


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#1 kmthames

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Posted 26 January 2011 - 01:44 PM

Hello all.

I am here because I'm certain that my brand new machine is infected. Avast! detected Malware-gen, so I placed the file(s) in the chest. I immediately ran a boot scan, which didn't find any infected files. I then ran another full system scan, which also came up clean.

I'm pretty certain that I still have the virus, however, because my desktop background was changed to a random picture stored in my documents. I read a bunch of blogs, forums, etc. and found that Combofix was the recommended by nearly all of them, so I found this site, downloaded, and ran Combofix. During my scan, however, I found a warning on one of the welcome pages, explaining not to run Combofix unless asked to do so. Oops!

I hope I haven't done some sort of damage by running the software. In any case, however, I will be posting the log in a subsequent post. Thanks in advance to anyone who is willing to help!

KT

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#2 quietman7

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Posted 26 January 2011 - 02:01 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.

With that said, please read the pinned topic ComboFix usage, Questions, Help? - Look here.

:step2: ComboFix logs, where should I post them?

ComboFix logs are not permitted outside the Virus, Trojan, Spyware, and Malware Removal Logsl forum and then only when requested by a Malware Response Team member. However, If you ran or want to run ComboFix on your own due to malware infection, please be aware that a ComboFix log is only one part of the disinfection process. Therefore we ask that you please read the pinned topic titled "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 Budapest

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Posted 26 January 2011 - 06:08 PM

Malware topic here: http://www.bleepingcomputer.com/forums/topic375902.html

Now that your log is properly 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 Removal Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show it 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 Malware Removal 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 Malware Removal 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 made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the Malware Removal 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 MR Team member is already assisting you and not open the thread to respond.

To avoid confusion, I am closing this topic.
The power of accurate observation is commonly called cynicism by those who haven't got it.

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