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Infected with Mass-mailer


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#1 NetWraith

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Posted 23 February 2011 - 05:14 PM

I am a contract network administrator, and I've finally come across a malware infection that has me stumped.

One of my clients has a PC running Windows XP SP3, that is domain joined and behind a Watchguard Firewall.
I can see from the Firewall logs that it is constantly trying to send out spam to a number of relay servers as well as making numerous attempts to contact various sites on the Internet on a variety of other ports.
All of this is being blocked at the Firewall.

The machine us running Sunbelt Vipre Enterprise Antivirus which has not found anything.
Malware Bytes comes up clean too.
I know I'm not supposed to run Combofix before being requested to do so, but I have used this tool before and it's never failed me. I have already run it against this machine, and while it did find and delete a couple of malicious files, the infection remains. I have tried several rootkit scanners and none have found anything.

The machine does have network connectivity, but no direct Internet access at present, so I have to download tools elsewhere and then copy them on to the machine to run.

Please advise what logs you need and what's the next step?

Edited by Budapest, 23 February 2011 - 05:50 PM.
Moved from Virus, Trojan, Spyware, and Malware Removal Logs ~BP


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#2 Budapest

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Posted 23 February 2011 - 05:50 PM

Please follow the instructions in ==>This Guide<==. 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 and what you have done to resolve them.

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.
The power of accurate observation is commonly called cynicism by those who haven't got it.

—George Bernard Shaw

#3 NetWraith

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Posted 24 February 2011 - 12:26 PM

Thank You. NEw post with logs is => here <=

#4 Budapest

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Posted 24 February 2011 - 04:12 PM

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.

—George Bernard Shaw




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