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Advice/Help with Trojan and worm removal


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7 replies to this topic

#1 Ginopoly

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Posted 13 June 2011 - 10:32 PM

Hi all
Would please like help/assistance with removal of above mentioned infections
Have gigabite motherboard i7 CPU 920@2.67GHz 6GB ram vista 64 bit machine ( infected one )on small home network ( 2 other XP machines ) which I have isolated.
I have run Avira free and AVG 2011 free as well as Malwarebytes antimalware free and SUPERAntiSpyware Free with no detaction.
The infected computer is displaying no real performance issues,crashing ext. Yet there is a persistent low grade crunching sound of the harddisk like it is ticking over slowly. Task manager shows the physical memory ticking constantly at about 30%. I searched and looked up the services running in task manager and in msconfig services and noted RPC (Remote Proceedure Call)RpcSs and Distributed Link Tracking Client TrkWks were running (trojan and worm)and have read up on these entities on this site and have come to the conclusion that I maybe at the stage of using combofix,
Does anyone have any further ideas for me or is this the course of action I need to take now.What about the other computers. Is it still safe to online bank with the other computers?

Edit: Moved topic from Vista to the more appropriate forum. ~ Animal

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#2 boopme

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Posted 13 June 2011 - 11:05 PM

Hello and welcome. I would first want you to consider this.

One or more of the identified infections is a backdoor trojan.

This allows hackers to remotely control your computer, steal critical system information and download and execute files.

I would counsel you to disconnect this PC from the Internet immediately. If you do any banking or other financial transactions on the PC or if it should contain any other sensitive information, please get to a known clean computer and change all passwords where applicable, and it would be wise to contact those same financial institutions to apprise them of your situation.

Though the trojan has been identified and can be killed, because of it's backdoor functionality, your PC is very likely compromised and there is no way to be sure your computer can ever again be trusted. Many experts in the security community believe that once infected with this type of trojan, the best course of action would be a reformat and reinstall of the OS. Please read these for more information:

How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?
When Should I Format, How Should I Reinstall

We can still clean this machine but I can't guarantee that it will be 100% secure afterwards. Let me know what you decide to do.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#3 Ginopoly

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Posted 14 June 2011 - 02:42 AM

Thanks for your reply. This infected computer checks email and browses. It does not do any financial interactions,one of the other computers on the network do that.These other 2 computers run XP and antivirus and antimalware programs and do not show these infections in msconfig services or on task manager. I also do not allow these other computers to remember any passwords for any sites. does that mean that I can still use these computers and passwords safely.

#4 boopme

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Posted 14 June 2011 - 09:22 AM

Reformatting was the choice I'd have made.
Reformatting a hard disk deletes all data. If you decide to reformat, you can back up all your important documents, data files and photos. The safest practice is not to backup any autorun.ini or .exe files because they may be infected. Some types of malware may disguise itself by adding and hiding its extension to the existing extension of files so be sure you take a close look at the full name. After reformatting, as a precaution, make sure you scan these files with your anti-virus prior to copying them back to your hard drive.

2 guidelines/rules when backing up

1) Backup all your important data files, pictures, music, work etc... and save it onto an external hard-drive. These files usually include .doc, .txt, .mp3, .jpg etc...
2) Do not backup any executables files or any window files. These include .exe/.scr/.htm/.html/.xml/.zip/.rar files as they may contain traces of malware. Also, .html or .htm files that are webpages should also be avoided.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#5 Ginopoly

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Posted 16 June 2011 - 09:55 AM

Have reinstalled windows and still have processes/viruses running
Have changed boot sequence in Bios to start from cd but this does not work so I have not been able to reformat the disk
Motherboard is Gigabyte X58 1.01 B8.1208.1

Any ideas

#6 invision

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Posted 16 June 2011 - 10:07 AM

Yet there is a persistent low grade crunching sound of the harddisk like it is ticking over slowly.


Sounds to me like your HD is about to die so backup backup backup

#7 boopme

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Posted 16 June 2011 - 10:29 AM

let's see if we can get a DDS and/or Gmer log

Please go here....
Preparation Guide ,do steps 6 - 9.

Create a DDS log and post it in the new topic explained in step 9,which is here Virus, Trojan, Spyware, and Malware Removal Logs and not in this topic,thanks.
If Gmer won't run,skip it and move on.
Let me know if that went well.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#8 Orange Blossom

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Posted 17 June 2011 - 11:21 PM

Hello,

Now that you have posted a log here: http://www.bleepingcomputer.com/forums/topic404403.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.

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

Orange Blossom :cherry:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

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